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Электронный компонент: SA57004

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Philips
Semiconductors
SA57003
Five-output composite voltage regulator
Product data
File under Integrated Circuits, Standard Analog
2001 Aug 01
INTEGRATED CIRCUITS
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2
2001 Aug 01
8532275 26807
GENERAL DESCRIPTION
The SA57003 is a very low noise, low dropout voltage regulator with
three independent preset outputs from 2.0 V to 5.0 V and two
dependent outputs regulated from 2.82 V up to V
OUT3
. The output
current is the same for all three independent outputs 1, 2, 3 and
each output is capable of supplying 200 mA. The other two
dependent outputs 4, 5 are capable of supplying current up to
185 mA and 195 mA, respectively. Additionally, the SA57003 has an
independent ON/OFF input pin for each output to allow individual
subcircuits to be turned off when not needed, making the device
very useful for applications where power conservation is important.
The independent output voltage regulators V
OUT1
, V
OUT2
, and
V
OUT3
have a common input voltage pin, V
IN
. The dependent output
voltage regulators, V
OUT4
and V
OUT5
have a common input voltage
pin, V
OUT3
.
The SA57003 regulator is offered in the TSSOP16 package.
FEATURES
V
OUT
tolerance
3% over temperature range 40
C to +85
C
ON/OFF input pin (logic-controlled shut-down) for each output
Very low dropout voltage (0.15 V typical for Outputs 1, 2, 3 and
0.25 V for Outputs 4, 5)
No load quiescent current of 170
A
Maximum input voltage of 12 V
Internal current and thermal limit
Supply voltage rejection: 60 dB (typical) @ f = 1.0 kHz
Internal trimmed voltage reference
APPLICATIONS
Mobile phones
Video cameras
Portable battery-powered telemetry equipment.
SIMPLIFIED SYSTEM DIAGRAM
SL01421
V
IN
V
OUT1
V
OUT3
V
OUT5
V
OUT4
V
OUT2
2
3
1
5
4
6
7
8
15
14
16
12
13
11
10
9
C
IN
10
F
C
NS1,2,3
(optional)
0.01
F CERAMIC
C
OUT1,2,3,4,5
1.0
F CERAMIC OR TANTALUM
ON/OFF
4
ON/OFF
5
ON/OFF
1
ON/OFF
3
ON/OFF
2
SA57003
Figure 1. Simplified system diagram.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TEMPERATURE
TYPE NUMBER
NAME
DESCRIPTION
RANGE
SA57003DH
TSSOP16
plastic thin shrink small outline package; 16 leads
40 to +85
C
Part number marking
Each device is marked with three or four lines of alphanumeric
codes. The first three letters of the top line designate the product.
The fourth letter, represented by "x", is a date tracking code. The
remaining lines are for manufacturing codes.
The first three letters, ADM, designate the product. The fourth letter,
represented by `x', is a date tracking code.
SL01422
C
M
D
A
PIN CONFIGURATION
ON/OFF
5
V
OUT2
GND
ON/OFF
4
1
2
3
SA57003
V
OUT4
NC
V
OUT5
V
OUT3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
OUT1
BYPASS
1
ON/OFF
1
V
IN
ON/OFF
3
ON/OFF
2
BYPASS
3
BYPASS
2
SL01423
Figure 2. Pin configuration.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
4
PIN DESCRIPTION
PIN
SYMBOL
DESCRIPTION
TERMINAL EQUIVALENT CIRCUIT
3, 5, 7, 11, 15
ON/OFF
n
On/Off control pins for the output pins.
Connect to V
IN
for always-on outputs.
SL01424
R
300 k
R
400 k
BIAS CIRCUIT
ON/OFF
N
2, 8, 6
NS
1
, NS
2
, NS
3
Noise-decrease bypass capacitor pins.
SL01425
Cns
TO V
OUT
R
R
POWER
TRANSISTOR
DRIVE
CIRCUIT
NS
n
1, 9, 16
V
OUT1
, V
OUT2
,
V
OUT3
Voltage output.
SL01426
V
OUT1,2,3
C
OUT1,2,3
POWER
TRANSISTOR
DRIVE
CIRCUIT
POWER
TRANSISTOR
TO
ERROR
AMP
12, 14
V
OUT4
, V
OUT5
Voltage output. These two outputs are powered
by the circuit that produced V
OUT3
, and will be
turned on an off with the V
OUT3
output. They
may be independently switched ON or OFF
while V
OUT3
is active.
SL01427
V
OUT 4,5
C
OUT 4,5
POWER
TRANSISTOR
DRIVE
CIRCUIT
POWER
TRANSISTOR
V
OUT3
4
V
IN
Common input supply voltage for all regulators.
10
GND
Common circuit ground pin for all regulators.
13
N/C
No connection.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
5
MAXIMUM RATINGS
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
IN
Input supply voltage
0.3
12
V
T
oper
Operating ambient temperature range
20
+75
C
T
j
Operating junction temperature
t.b.d.
C
T
stg
Storage temperature
40
+125
C
I
OUT1,2,3
Output currents; Note 1
200
mA
P
D
Power dissipation
400
mW
R
th(j-a)
Thermal resistance from junction to ambient
t.b.d.
C/W
V
ESD1
ESD damage threshold (Human Body Model); Note 2
2000
V
V
ESD2
ESD damage threshold (Machine Model); Note 3
200
V
T
solder
Soldering temperature; Note 4
230
C
NOTES:
1. Maximum current capability of one circuit (V
OUT1,2,3
).
2. Performed in accordance with Human Body Model (CZap = 100 pF, RZap = 1500
).
3. Performed in accordance with Machine Model (CZap = 100 pF, RZap = 0
).
4. 60 second maximum exposure for SMD Reflow temperatures above 183
C.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
6
ELECTRICAL CHARACTERISTICS
V
IN
= 4.0 V, C
IN
= 10
F, C
OUT1,2,3
= 4.7
F with 1.0
series resistor, C
OUT4,5
= 1.0
F, C
NS1,2,3
= 0.01
F, T
amb
= 25
C, unless otherwise
noted. See Test Circuit 1 for test configuration for DC parameters.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
INS
Supply current (OFF)
V
ON/OFF1
= V
ON/OFF2
= V
ON/OFF3
= 0 V
0
3
A
I
IN1,2,3
Supply current 1,2,3
V
ON/OFF1
= 3.0 V;
V
ON/OFF2
= V
ON/OFF3
= V
ON/OFF4,5
= 0 V
170
350
A
I
q(standby)
Standby quiescent current
ON/OFF
1,2,3,4,5
= 0 V
I
OUT1,2,3,4,5
= 0 mA
0
3.0
mA
I
GND(operating)
Operating ground current
1
ON/OFF
1
= 3.0 V, ON/OFF
2,3,4,5
= 0 V;
ON/OFF
2
= 3.0 V, ON/OFF
1,3,4,5
= 0 V;
ON/OFF
3
= 3.0 V, ON/OFF
1,2,4,5
= 0 V
170
350
A
I
LIM
Output current limit (I
OUT1,2,3
)
200
240
mA
ON/OFF
V
OFF
ON/OFF LOW threshold voltage
0.4
V
V
ON
ON/OFF HIGH threshold voltage
1.6
V
I
ON/OFF
Terminal current
V
ON/OFF
1.6 V
10
mA
V
OUT1
V
OUT1
Output voltage 1
I
OUT1
= 30 mA
2.42
2.50
2.58
V
V
DMIN1
Dropout voltage
2
I
OUT1
= 30 mA; V
IN
= 2.3 V
1.1
1.5
0.2
V
V
LO1
Load regulation
I
OUT1
= 0 100 mA
30
60
mV
V
LI1
Line regulation
I
OUT1
= 30 mA; V
IN
= 4.0 8.0 V
10
20
mV
V
O1
/
T
V
OUT
temperature coefficient
20
T
amb
75
C; I
OUT1
= 30 mA
100
V/
C
RR
1
Ripple rejection
f = 120 Hz; I
OUT1
= 30 mA;
V
RIPPLE
= 1.0 V
P-P
50
60
dB
V
N1
Output noise voltage
f = 10 Hz 10 kHz; I
OUT1
= 30 mA;
C
NS1
= 0.01
F
V
RMS
t
DH1
Output delay time
I
OUT1
= 30 mA; V
ON/OFF1
= 0
4 V
0.04
0.8
ms
V
OUT2
V
OUT2
Output voltage 2
I
OUT2
= 30 mA
2.42
2.80
2.88
V
V
DMIN2
Dropout voltage
2
I
OUT2
= 30 mA; V
IN
= 2.3 V
1.1
1.5
0.2
V
V
LO2
Load regulation
I
OUT2
= 0 100 mA
30
60
mV
V
LI2
Line regulation
I
OUT2
= 30 mA; V
IN
= 4.0 8.0 V
10
20
mV
V
O2
/
T
V
OUT
temperature coefficient
20
T
amb
75
C; I
OUT2
= 30 mA
100
V/
C
RR
2
Ripple rejection
f = 120 Hz; I
OUT2
= 30 mA;
V
RIPPLE
= 1.0 V
P-P
50
60
dB
V
N2
Output noise voltage
f = 10 Hz 10 kHz; I
OUT2
= 30 mA;
C
NS2
= 0.01
F
V
RMS
t
DH2
Output delay time
I
OUT2
= 30 mA; V
ON/OFF2
= 0
4 V
0.04
0.8
ms
V
OUT3
V
OUT3
Output voltage 3
I
OUT3
= 80 mA
2.92
3.00
3.08
V
V
DMIN3
Dropout voltage
2
I
OUT3
= 80 mA; V
IN
= 2.3 V
0.3
V
V
LO3
Load regulation
I
OUT3
= 0 100 mA
60
mV
V
LI3
Line regulation
I
OUT3
= 30 mA; V
IN
= 4.0 8.0 V
20
mV
V
O3
/
T
V
OUT
temperature coefficient
20
T
amb
75
C; I
OUT3
= 30 mA
100
V/
C
RR
3
Ripple rejection
f = 120 Hz; I
OUT3
= 30 mA;
V
RIPPLE
= 1.0 V
P-P
50
60
dB
V
N3
Output noise voltage
f = 10 Hz 10 kHz; I
OUT3
= 30 mA;
C
NS3
= 0.01
F
30
60
V
RMS
t
DH3
Output delay time
I
OUT3
= 30 mA; V
ON/OFF3
= 0
4 V
0.04
0.8
ms
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
7
SYMBOL
UNIT
MAX.
TYP.
MIN.
CONDITIONS
PARAMETER
V
OUT4
V
OUT4
Output voltage 4
I
OUT3
= I
OUT4
= 20 mA; I
OUT5
= 40 mA
2.82
V
OUT3
V
I
O4
Maximum output current
V
OUT4
= 2.72 V; I
OUT3
= I
OUT5
= 0 mA
50
185
mA
t
DH4
Output delay time
I
OUT4
= 20 mA; C
OUT4
= 1
F;
V
ON/OFF4
= 0
4.0 V
0.02
0.1
ms
I
GND4
Ground current
I
OUT4
= 20 mA; V
OUT3
= 3.0 V
0.5
0.8
mA
V
OUT5
V
OUT5
Output voltage 4
I
OUT3
= I
OUT4
= 20 mA; I
OUT5
= 40 mA
2.82
V
OUT3
V
I
O5
Maximum output current
V
OUT5
= 2.72 V; I
OUT3
= I
OUT4
= 0 mA
80
195
mA
t
DH5
Output delay time
I
OUT5
= 40 mA; C
OUT4
= 1
F;
V
ON/OFF5
= 0
4.0 V
0.02
0.1
ms
I
GND5
Ground current
I
OUT5
= 40 mA; V
OUT3
= 3.0 V
0.5
0.8
mA
NOTES:
1. Individual operating ground currents for regulators 1, 2, and 3 with corresponding ON/OFF pins (ON/OFF
1,2,3
) connected to 3.0 V and
outputs open (I
OUT1,2,3
= 0 mA). Regulators 1, 2, and 3 are the same.
2. Dropout Voltage is a measure of the minimum input/output differential voltage at the specified output current.
SL01434
V
OUT3
V
OUT4,5
ON/OFF
4,5
I
GND4,5
GROUND CURRENT
R
R
R
Figure 3. Ground current for V
OUT4
and V
OUT5
.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
8
TYPICAL PERFORMANCE CURVES
V
IN
V
OUT
,
DROPOUT
VOL
T
AGE (mV)
SL01428
I
OUT
, OUTPUT CURRENT (mA)
0
25
50
75
100
125
150
0
50
100
150
200
250
Typical for V
OUT1,2,3
T
amb
= 25
C
Figure 4. Dropout voltage versus output current.
V
IN
V
OUT
,
DROPOUT
VOL
T
AGE (mV)
SL01429
V
IN
, INPUT VOLTAGE (V)
5.0
5.0
10
15
4.0
6.0
8.0
10
12
I
OUT
= 30 mA
Typical for V
OUT1,2,3
T
amb
= 25
C
ON/OFF
1,2,3
= V
IN
= V
OUT
+ 1.0 V
V
OUT
Figure 5. Normalized line regulation versus input voltage.
V
OUT1,2,3
, OUTPUT

VOL
T
AGE CHANGE (mV)
SL01430
I
OUT
, OUTPUT VOLTAGE (mV)
20
20
40
10
30
10
0
20
40
60
80
100
120
140
Typical for V
OUT1,2,3
T
amb
= 25
C
V
IN
= V
OUT
+ 1.0 V
ON/OFF
1,2,3
= V
IN
C
OUT
= 47
F
V
OUT
Figure 6. Normalized load regulation.
SL01431
T
j
, JUNCTION TEMPERATURE (
C)
V
OUT
V
OUT
, OUTPUT

VOL
T
AGE
(V)
1.0
2.0
3.0
+1.0
0
25
50
75
100
125
150
175
Typical for V
OUT1,2,3
V
IN
= V
OUT
+ 1.0 V
ON/OFF
1,2,3
= V
IN
Figure 7. Thermal shutdown.
SL01432
I
OUT
, OUTPUT CURRENT (mA)
V
OUT
V
OUT
, OUTPUT

VOL
T
AGE
(V)
0
50
100
150
200
250
300
3.0
2.0
1.0
+1.0
Typical for V
OUT1,2,3
V
IN
= V
OUT
+ 1.0 V
ON/OFF
1,2,3
= V
IN
Figure 8. Typical output current limit.
SL01433
I
OUT
, OUTPUT CURRENT (mA)
T
amb
= 25
C
0
V
IN
12 V
C
OUT
= 4.7
F
ESR, ESR @ 100 kHz ( )
0.01
0.1
1.0
10
100
1000
0.01
0.1
1.0
10
100
UNSTABLE REGION
STABLE OPERATING REGION
UNMEASURABLE REGION
Figure 9. ESR stability versus output current.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
9
TECHNICAL DESCRIPTION
The SA57003 is a monolithic composite five-output regulator
developed to power the RF sections of mobile telephones. It
contains three independent full-featured voltage regulator circuits.
Each regulator circuit incorporates individual feedback error
amplifiers for output voltage regulation, output On/Off Control, Noise
Bypass Pin, Current Limiting, and Thermal Shutdown. The Noise
Bypass Pins provide the option of externally bypassing an internal
voltage reference node for enhanced noise reduction.
The output of one of the three regulator circuits, in addition to being
pinned out, feeds two dependent switched output regulators. Both
switched output regulators incorporate individual feedback error
amplifiers for output voltage regulation but have no thermal
shutdown or current limiting feature.
The three full-featured regulators have typical dropout voltages of
200 mV at 30 mA of output current. The two switched outputs have
a minimum current capacity of 80 mA each.
Each independent regulator in the SA57003 is a series pass
regulator incorporating a bandgap reference, two feedback
amplifiers, thermal shutdown circuit, and output current limiting.
See the device block diagram shown in Figure 10 and the equivalent
circuit in Figure 11. Both feedback amplifiers are referenced to the
same bandgap reference. A PNP transistor is used in the device's
output and serves as a series pass element. The output PNP pass
transistor incorporates a dual collector. The first feedback amplifier
monitors the first collector's output voltage through the use of a
voltage divider network fed from the output. The second collector
monitors the output current and produces a small output current
proportional to that current delivered to the output. This small
proportional current is used to generate a second feedback voltage
fed to the second feedback amplifier to fold back the output current
to a safe level in the event of an output short. Both feedback
amplifiers act on the same control node to control the PNP pass
transistor. Dual path output monitoring in this manner maintains a
constant output voltage while adding the feature enhancement of
output current limiting.
Operating stability of the SA57003 linear regulator is determined by
start-up delay, transient response to loading, and stability of the
feedback loop. The SA57003 has a fast transient loop response. No
built-in delay is incorporated.
Capacitors play an important part in compensating the regulator's
output. A 4.7
F aluminum electrolytic capacitor is recommended for
most applications. This consideration is made primarily on a basis of
minimal cost with good performance.
A tantalum capacitor could also be used. Tantalum capacitors have
the advantage of being smaller size than electrolytic capacitors of
the same value of capacitance. Tantalum capacitors are also not
prone to dry-out. The electrolyte used in electrolytic capacitors tends
to dry-out with time causing degradation in capacitance value. Avoid
using low ESR film or ceramic capacitors to avoid instability problems.
Keep in mind that the output capacitor tries to supply any
instantaneous increase in load current. Using higher values of
capacitance will enhance transient load performance as well as
stability. Lowering the ESR of the capacitors will also improve the
transient response to load current changes but at the expense of
stability.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
10
SL01435
ON/OFF
1
GND
10
F
V
OUT1
V
OUT2
V
OUT3
V
OUT4
V
OUT5
ON/OFF
4
ON/OFF
5
11
3
7
15
ON/OFF
2
ON/OFF
3
2
5
6
10
V
OUT3
V
OUT3
14
12
V
IN
4
1
16
4.7
F
4.7
F
4.7
F
4.7
F
4.7
F
CURRENT
LIMIT
TEMP
SENSOR
9
CURRENT
LIMIT
TEMP
SENSOR
CURRENT
LIMIT
TEMP
SENSOR
VOLTAGE
REFERENCE
ENABLE
ENABLE
ENABLE
ENABLE
ENABLE
0.01
F
0.01
F
8
0.01
F
R
R
R
R
R
R
R
R
R
R
NS
1
NS
2
NS
3
SA57003
Figure 10. Simplified block diagram.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
11
SL01437
V
IN
NS1
4
2
3
1 V
OUT1
NS2 8
7
9 V
OUT2
NS3 6
5
16
V
OUT3
11
12
V
OUT4
15
14
V
OUT5
10 GND
SA57003
ON/OFF
1
ON/OFF
3
ON/OFF
4
ON/OFF
5
ON/OFF
2
Figure 11. Equivalent circuit.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
12
APPLICATION INFORMATION
SL01421
V
IN
V
OUT1
V
OUT3
V
OUT5
V
OUT4
V
OUT2
2
3
1
5
4
6
7
8
15
14
16
12
13
11
10
9
C
IN
10
F
C
NS1,2,3
(optional)
0.01
F CERAMIC
C
OUT1,2,3,4,5
1.0
F CERAMIC OR TANTALUM
ON/OFF
4
ON/OFF
5
ON/OFF
1
ON/OFF
3
ON/OFF
2
SA57003
Figure 12. Typical application circuit.
Stability Factors: Capacitance and ESR
The operating stability of linear regulators is determined by start-up
delay, transient response to load currents, and stability of the
feedback loop. The SA57003 has a fast transient loop response,
with no built-in delay.
Keep in mind that the output capacitor tries to supply any
instantaneous increase in load current from its stored energy. Using
higher values of capacitance will enhance transient load
performance as well as stability. Lowering the ESR of the capacitors
will also improve the transient response to load current changes, but
it will decrease stability.
Power dissipation factors
The thermal performance of linear regulators depends on the
following parameters:
Maximum junction temperature (T
j
) in
C
Maximum ambient temperature (T
amb
) in
C
Power dissipation capability of the package in Watts (P
D
)
Junction-to-ambient thermal resistance in
C/W
The Maximum Junction Temperature and Maximum Power
Dissipation are both determined by the manufacturer's process and
device's design. For the most part the ambient temperature is under
the control of the user. The Maximum Ambient Temperature
depends on the process used by the manufacturer. The package
type and manufacturer's process determines Junction-to-Ambient
Thermal Resistance.
These parameters are related to each other as shown in the
following equation:
T
j
= T
amb
+ ( P
D
R
th(j-a)
)
The term ( P
D
R
th(j-a)
) represents the temperature rise from the
ambient to the internal junction of the device.
Power dissipation calculations
A regulator's maximum power dissipation can be determined by
using the following equation:
P
D(max)
= V
IN(max)
I
G
+ [V
IN(max)
V
OUT(min)
] I
OUT(max)
where:
V
IN(max)
is the maximum input voltage
I
G
is the maximum Ground Current at maximum output current
V
OUT(min)
is the minimum output voltage
I
OUT(max)
is the maximum output current
(V
IN(max)
I
G
) represents heat generated in the device due to internal
circuit biasing, leakage, etc. [V
IN(max)
V
OUT(min)
] is the
input-to-output voltage drop across the device due to the I
OUT(max)
current. When multiplied by I
OUT(max)
, this represents heat
generated in the device due to the output load current.
Heat dissipation factors
The SA57003 device should not be operated under conditions that
would cause a junction temperature of 150
C to be generated
because the thermal shutdown protection circuit will shut down the
device at or near this temperature.
Heat generated within the device is removed to the surrounding
environment by radiation or conduction along several paths. In
general, radiated heat is dissipated directly into the surrounding
ambient from the chip package and leads. Conducted heat flows
through an intermediate material, such as the leads or thermal
grease, to circuit board traces and heat sinks in direct contact with
the device's package or leads. The circuit board then radiates this
heat to the ambient. For this reason, adequate airflow over the
device and the circuit board is important.
The TSSOP16 package is too small to easily use external heat sinks
to increase the surface area and enhance the dissipation of
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
13
generated heat. Heat dissipation must depend primarily on radiated
heat into the surrounding environment and the heat flow through the
leads into the printed circuit board. Some improvement can be
realized by allowing additional exposed copper on the circuit board
near the device to serve as heat absorbers and dissipaters for the
device.
The overall thermal resistance from junction to the surrounding
ambient of the package (R
th(j-a)
) is made up of three series elements
and can be thought of as the total resistance of a series electrical
circuit. These elements are:
R
th(j-c)
= Thermal resistance from Junction-to-Case
R
th(c-s)
= Thermal resistance from Case-to-heat Sink
R
th(s-a)
= Thermal resistance from heat Sink-to-Ambient
R
th(j-a)
is based primarily on the package type and the size of the
silicon chip used in the device. The composition of package
materials plays an important part. High heat conductivity materials
produce reduced Junction-to-Case resistances.
R
th(c-s)
value is based on the package type, heat sink interface, and
contact area of the device to the heat sink. The use of thermal
grease or an insulator will increase the transfer of heat from the
case to the heat sink.
R
th(s-a)
, which is thermal resistance from heat sink to the ambient, is
based on heat sink emissivity and airflow over the heat sink to carry
the heat away. The heat sink to ambient heat flow is dependent on
the ability of the surrounding ambient media to absorb the heat.
The total R
th(j-a)
thermal resistance is expressed as:
R
th(j-a)
= R
th(j-c)
+ R
th(c-s)
+ R
th(s-a)
The maximum power that a given package can handle is given by:
P
D
+
T
j(max)
*
T
amb
R
th(j
*
a)
DEFINITIONS
Line regulation is the change in output voltage caused by a change
in input line voltage. This parameter is measured using pulse
measurement techniques or under conditions of low power
dissipation so as to not significantly upset the thermal dynamics of
the device during test.
Load regulation is the change in output voltage caused by a
change in output load current for a constant device temperature.
Quiescent current is that current which flows to the ground pin of
the device when the device is operated with no load.
Ground current is that current which flows to the ground pin of the
device when the device is operated with output current flowing due
to an applied load. It is the measurement difference of input current
minus the output current.
Dropout voltage is the input/output differential at which the
regulator output no longer maintains regulation against further
reductions in input voltage. Measured when the output drops
100 mV below its nominal value (which is measured at 1.0 V
differential input/output), dropout voltage is affected by junction
temperature, load current and minimum input supply requirements.
Output noise voltage is the integrated output noise voltage
(RMS AC) specified over a frequency range and expressed in
nV/kHz or V
rms
. It is measured at the output, with a constant load an
no input ripple.
Current limiting is internal device circuitry incorporated to limit the
output current of the device. This feature is incorporated in the
device to protect the device against output over current conditions or
output shorts to ground.
Thermal shutdown is internal device circuitry incorporated in the
device to shut down the device when the chip temperature reaches
a specified temperature. This feature protects the device from
excessive operating temperatures that would otherwise be
catastrophic to the device. Over heating can be created by
accidental output shorts.
Maximum power dissipation is the maximum total dissipation for
which the regulator will operate within specifications.
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
14
TEST CIRCUITS
SL01436
V
IN
C
IN
2
3
1
5
4
6
7
8
15
14
16
12
13
11
10
9
A
V
A
C
VO2
C
NS1
C
NS3
I
O1
I
O2
I
O3
I
O4
I
O5
I
O1
I
O3
I
O5
A
C
VO4
V
R
L4
R
L2
A
C
VO5
V
R
L5
A
C
VO3
V
R
L3
A
C
VO1
V
R
L1
C
NS2
I
O2
I
O2
ON/OFF
4
ON/OFF
5
ON/OFF
1
ON/OFF
3
ON/OFF
2
SA57003
Figure 13. Test circuit 1.
PACKING METHOD
The SA57003 is packed in reels, as shown in Figure 14.
SL01305
TAPE DETAIL
COVER TAPE
CARRIER TAPE
REEL
ASSEMBLY
TAPE
GUARD
BAND
BARCODE
LABEL
BOX
Figure 14. Tape and reel packing method
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
15
TSSOP16:
plastic thin shrink small outline package; 16 leads; body width 4.4 mm
1.25
0.15
1.15
0.32
0.17
0.25
0.10
5.3
4.9
4.6
4.2
0.7
0.3
0.12
10
0
0.475
max
Philips Semiconductors
Product data
SA57003
Five-output composite voltage regulator
2001 Aug 01
16
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Contact information
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Koninklijke Philips Electronics N.V. 2001
All rights reserved. Printed in U.S.A.
Date of release: 10-01
Document order number:
9397 750 08711
Philips
Semiconductors
Data sheet status
[1]
Objective data
Preliminary data
Product data
Product
status
[2]
Development
Qualification
Production
Definitions
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
This data sheet contains data from the preliminary specification. Supplementary data will be
published at a later date. Philips Semiconductors reserves the right to change the specification
without notice, in order to improve the design and supply the best possible product.
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply.
Changes will be communicated according to the Customer Product/Process Change Notification
(CPCN) procedure SNW-SQ-650A.
Data sheet status
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.