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Электронный компонент: SA57031-36UK

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Philips
Semiconductors
SA57031-XX
Micropower 150 mA, low-noise, low dropout
linear regulator with on/off
Product data
Supersedes data of 2003 Feb 24
2003 Jun 23
INTEGRATED CIRCUITS
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2
2003 Jun 23
853-2361 28634
GENERAL DESCRIPTION
The SA57031 is a 150 mA, fixed output voltage regulator designed
to provide very low dropout voltage and low noise in battery
powered and portable applications. The output voltage is preset to
voltages between 1.8 to 5.0 Volts, in 100 mV increments.
The SA57031 achieves excellent performance in all specifications
such as excellent power supply ripple rejection at low frequency, low
supply-current, low dropout voltage, low power consumption,
extremely small size with chip scaled package (CSP), extremely low
output noise voltage, very fast start-up response time, precision
output, fast dynamic response to line and load regulation, etc. This
regulator consists of an internal voltage reference, and current limit.
The SA57031 is housed in a WL-CSP4 package (see dimensional
drawing for layout).
Bottom View
FEATURES
Many Preset Output Voltages: 1.8 to 5.0 V in 0.1 V increments
Wafer-level chip scale package (WL-CSP4)
Extremely low PSRR: 80 dB typical at 1 kHz
Low Dropout Voltage: 100 mV (typ) @ 50 mA output current
Very Low Consumption Current: 100 mA typ. (when not loaded),
0.1 mA max. (when off)
High precision Output Voltage:
2%
Output Current Capacity: 150 mA (typ)
Low Noise: 30mVrms @ 10 Hz to 100 kHz
Good Line Regulation: 0.01%/V typ.
Good Load Regulation: 0.003%/mA typ.
Low Temperature Drift Co-efficient to V
O
:
100 ppm/
C
Built-in Current Limiter
Wide Operating Temperature Range: 40 to +85
C
APPLICATIONS
Cellular Phones, Cordless Phones and 2-way Radios
Electronic Notebooks, PDAs and Palmtop Computers
Cameras, VCRs and Camcorders
PCMCIA Cards
Modems
Battery-powered or Hand-held Instruments
SIMPLIFIED SYSTEM DIAGRAM (BOTTOM VIEW)
SL02001
B2
A1
B1
V
O
GND
C
O
C
I
2.2
F
ON
A2
V
I
SA57031-XX
OFF
+
DC
2.0 V TO 6.0 V
R
LOAD
V
Preset output voltages:
1.8 V to 5.0 V
(in 100 mV increments)
Figure 1. Simplified system diagram.
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TEMPERATURE
TYPE NUMBER
NAME
DESCRIPTION
RANGE
SA57031-XXUK
WLCSP4
wafer level, chip-scale package; 4 bumps
40 to +85
C
NOTE:
The device has five voltage output options, indicated by the XX on
the Type Number. Other voltages, between 2.5 to 5.0 V in 100 mV
increments, are available on request.
XX
VOLTAGE (Typical)
18
1.8 V
24
2.4 V
28
2.8 V
PIN CONFIGURATION (TOP VIEW)
SA00633
B2
A1
B1
A2
SA57031-XX
V
O
GND
ON/OFF
V
I
Figure 2. Pin configuration.
PIN DESCRIPTION
PIN
SYMBOL
DESCRIPTION
A1
GND
Device ground
B1
V
O
Voltage output
B2
V
I
Voltage input
A2
ON/OFF
Control pin. Connect to V
I
if not used.
MAXIMUM RATINGS
Symbol
Parameter
Min
Max
Unit
T
stg
Storage temperature range
40
+150
C
T
oper
Operating Temperature Range
40
+85
C
V
I
Supply voltage
0.3
+7
V
I
O
Output Current
200
mA
P
Power dissipation
190
mW
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
4
CHARACTERISTICS
T
amb
= 25
C; V
I
= V
O
(nom)
+1 V; V
ON/OFF
= 2 V; I
O
= 1 mA unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
CC
No-load input current
I
O
= 0 mA
45
100
A
I
O
= 50 mA
55
I
O
= 150 mA
60
I
CC
(OFF)
Input current (off)
V
ON/OFF
= 0.25 V
0.1
1
A
I
q
Quiescent Current
I
O
= 0 to 150 mA
100
190
A
V
LNR
Line regulation
V
I
= V
O
+0.5 V to 6 V
5
10
mV
I
O
= 1 to 50 mA
10
25
V
LDR
Load regulation
I
O
= 1 to 100 mA
20
50
mV
I
O
= 1 to 150 mA
30
70
V
O
/
T
V
O
Temperature coefficient
T
j
= 30 to +85
C
ppm/
C
PSRR
Power supply ripple rejection
f = 1 kHz; I
O
= 1 mA; V
ripple
= 0.5 V;
V
O
= 1.8 to 4.0 V
80
dB
PSRR
Power supply ripple rejection
f = 1 kHz; I
O
= 1 mA; V
ripple
= 0.5 V;
V
O
= 4.1 to 5.0 V
70
dB
Vn
Output noise voltage
f
BW
= 20 to 80 kHz; C
O
= 2.2
F
30
Vrms
I
ON/OFF
Output short-circuit current
V
I
= V
O
+1 V ; V
O
= 0 V
30
mA
V
ON/OFF(H)
ON/OFF HIGH threshold
voltage
1.5
V
I
V
V
ON/OFF(L)
ON/OFF LOW threshold voltage
0
0.25
V
R
ON/OFF
ON/OFF Pull-down resistance
2.5
5
15
M
V
O
Output voltage (nominal)
x0.98
nom
x1.02
V
V
dropout
Dropout voltage
V
O
= 2.0 to 2.3
0.25
0.35
V
V
O
= 2.4 to 2.7
0.24
0.29
V
O
= 2.8 to 5.0
0.23
0.26
PRESET OUTPUT VOLTAGES
Part Number
Min
Typ
Max
SA57031-25UK
2.450
2.500
2.550
SA57031-28UK
2.744
2.800
2.856
SA57031-30UK
2.940
3.000
3.060
SA57031-33UK
3.234
3.300
3.366
SA57031-36UK
3.528
3.600
3.672
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
5
TYPICAL PERFORMANCE CURVES
Shown for the SA57031-28UK only; T
amb
= 25
C; V
I
= V
O
+ 1 V; V
On/Off
= V
I
; C
in
= 2.2
F, C
O
= 2.2
F unless otherwise specified
SL01970
INPUT VOLTAGE V
I
(V)
OUTPUT VOL
T
AGE (V)
0
0.5
1.0
1.5
2.0
2.5
3.0
0
1
2
3
4
5
6
I
O
= 1mA
I
O
= 100 mA
I
O
= 30 mA
Figure 3. Output voltage versus input voltage.
SL01971
INPUT VOLTAGE V
I
(V)
NO-LOAD INPUT

CURRENT

I
0
5
10
15
20
25
30
35
40
45
50
0
1
2
3
4
5
6
DD
(
A)
Figure 4. No-load input current versus input voltage.
SL01972
INPUT VOLTAGE V
I
(V)
LINE
REGULA
TION Vline (mV)
1
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
3
3.5
4.0
4.5
5.0
5.5
6.0
I
O
= 30 mA
Figure 5. Line regulation versus input voltage.
SL01973
OUTPUT CURRENT I
O
(mA)
LOAD REGULA
TION
Vload(mV)
150
100
50
0
50
100
150
0
50
100
150
Figure 6. Load regulation versus load current.
SL01974
OUTPUT CURRENT I
O
(mA)
DROPOUT VOL
T
AGE
V
io(V)
0
0.1
0.2
0.3
0.4
0
50
100
150
V
I
= 2.6 V, I
O
= 10 mA
Figure 7. Dropout voltage versus output current.
SL01975
OUTPUT CURRENT I
O
(mA)
OUTPUT VOL
T
AGE
V
o(V)
0
0.5
1.0
1.5
2.0
2.5
3.0
0
100
200
300
400
V
I
= 3.8 V
V
I
= 5.0 V
V
I
= 6.0 V
Figure 8. Current limit versus output current.
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
6
SL01976
OUTPUT CURRENT (mA)
GND PIN CURRENT
0
10
20
30
40
50
60
70
80
90
100
0
25
50
75
100
125
150
(
A)
Figure 9. Ground pin current.
SL01977
TEMPERATURE T(
C)
OUTPUT VOL
T
AGE
V
o(V)
2.72
2.74
2.76
2.78
2.80
2.82
2.84
50
25
0
25
50
75
100
125
Figure 10. Output voltage versus ambient temperatures.
SL01978
FREQUENCY (kHz)
RIPPLE REJECTION (dB)
90
80
70
60
50
40
30
20
10
0
0.01
0.10
1.00
10.00
100.00
1000.00
IO = 100 mA
I
O
= 150 mA
I
O
= 30 mA
I
O
= 1 mA
Figure 11. Ripple rejection.
SL01991
V
O
= 2.8 V
V
on/off
= 2 V
10
S
Figure 12. On/off control pin.
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
7
SL01992
V
I
= 4.8 V
V
I
= 2 V/div
V
O
= 10 mV/div
200
S
V
I
= 3.8 V
Figure 13. Line transient response.
SL01993
I
O
= 100 mA
C
O
= 2.2
F
I
O
= 50 mA/div
V
O
= 10 mV/div
500
S
I
O
= 0.1 mA
Figure 14. Load transient response.
SL01994
I
O
= 100 mA
C
O
= 1.0
F
I
O
= 50 mA/div
V
O
= 10 mV/div
500
S
I
O
= 0.1 mA
Figure 15. Load transient response.
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
8
TECHNICAL DISCUSSION
As illustrated in Figure 16, the SA57031 consists of a band-gap
voltage reference, an error amplifier, P-channel pass transistor,
current limit circuit and an internal feedback voltage divider. The
output voltage is fed back through an internal resistor voltage divider
connected to the V
O
pin.
The reference is connected to the error amplifier's inverting input.
The error amplifier compares the reference with the feedback
voltage and amplifies the difference. If the feedback voltage is lower
than the reference voltage, the pass transistor's gate is pulled lower,
which allows more current to pass to the output and increase the
output voltage. If the feedback voltage is too high, the pass
transistor gate is pulled up, allowing less current to pass to the
output, resulting in a decrease in output voltage.
SA00634
2
4
1
3
SA57031-XX
V
O
GND
ON/OFF
V
I
V
REF
CURRENT
LIMITER
Figure 16. Block diagram (bottom view).
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
9
APPLICATION INFORMATION
The following points have to be kept in mind for good performance
while using these devices.
Input Capacitor
An input capacitor of 2.2
F is required between the SA57031 input
pin and the circuit ground. This capacitor must be located as close
as possible to the V
I
or GND pin (not more than 1 cm away from the
pin) and returned to a clean analog ground. Any good quality
ceramic, tantalum, or film capacitor will work.
Output Capacitor
Phase compensation is used for securing stable operation even if
the load current varies. For this reason, an output capacitor with
good frequency characteristics is needed. Set it as close to the
circuit as possible and make the wiring as short as possible. The
value of the output capacitance has to be at least 2.2
F and has to
have B-type temperature characteristics.
ON/OFF (Chip Enable) Pin
The ON/OFF pin must be actively terminated, not floating. If the
function is not needed, the pin should be tied to V
I
to permanently
enable the device.
Line Impedance of V
I
and GND
The V
I
and GND lines should be sufficiently wide to minimize
impedance. If the impedance of these lines is high, there is a chance
to pick up noise or malfunction.
SA00632
B2
A1
B1
V
O
GND
C
O
C
I
2.2
F
ON
A2
V
I
SA57031-XX
OFF
+
DC
2.0 V TO 6.0 V
R
LOAD
V
C
O
= 2.2 mF for V
O
= 2.5 to 5.0 V
C
O
= 4.7 mF for V
O
= 1.8 to 2.5 V
ON/OFF PIN MUST BE ACTIVELY TERMINATED
A
Figure 17. Typical application circuit.
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
10
PACKING METHOD
The SA57031-XX is packed in reels, as shown in Figure 18.
PRINTED PLANO BOX
BARCODE LABEL
BAG
MOISTURE CAUTION
PRINT
ESD PRINT
DRY-AGENT
RELATIVE HUMIDITY
INDICATOR
TAPE
GUARD BAND
BARCODE LABEL
ESD EMBOSSED
REEL ASSEMBLY
SPACE FOR ADDITIONAL LABEL
PRINTED ESD WARNING
BARCODE LABEL
DRYPACK ID STICKER
QA SEAL
PRINTED PLANO BOX
PRE-PRINTED HYATT PATENT
SL01962
Figure 18. Tape and reel packing method
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
11
P2
P0
A0
P1
B0
E
F
W
TAPE PULL OUT DIRECTION
K
T
NOTES:
1. IC pull out direction
2. Carrier tape material:
paper type, with ESD protection.
3. The length of the leader:
More than 400 mm which include 40 holes or more without any products.
IT's must have the top cover tape.
4. The length of trailer:
More than 40 mm which include without any products.
IT's must have the top copy tape.
The end of trailer must be detached from reel.
TOP VIEW
B HOUSING
SL02002
D0
TAPE PULL OUT DIRECTION
UNIT
A0
B0
W
F
E
P1
P2
0.90
1.40
8.0
3.5
1.75
4.0
2.0
mm
P0
4.0
D0
1.55
T
0.60
K
0.58
"
0.03
"
0.03
"
0.1
"
0.05
"
0.05
"
0.05
"
0.05
"
0.1
"
0.03
"
0.03
"
0.03
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
12
WL-CSP4:
wafer level, chip-scale package; 4 bumps
X5
X1
X2
X3
X4
X10
BUMP
DIMENSIONS (mm are the original dimensions)
UNIT
X1
X2
X3
X4
X5
X6
X7
mm
1.32
1.26
0.82
0.76
0.5
0.5
0.866
0.212
0.433
X6
X7
X8
X8
0.23
0.13
X9
0.42
0.38
X10
0.10
0.06
X9
SL02098
Philips Semiconductors
Product data
SA57031-XX
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
2003 Jun 23
13
REVISION HISTORY
Rev
Date
Description
_2
20030623
Product data (9397 750 11664); ECN 853-2361 30063 dated 23 June 2003.
Supersedes SA57031-XX_1 (9397 750 11001) of 2003 Feb 24.
Modifications:
WL-CSP4 package outline dimensional drawing modified.
_1
20030224
Product data (9397 750 11001); ECN 853-2361 28634 dated 2002 Jul 18
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 in the products--including circuits, standard cells, and/or software--described
or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated
via a Customer Product/Process Change Notification (CPCN). 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. 2003
All rights reserved. Printed in U.S.A.
Date of release: 06-03
Document order number:
9397 750 11664
Philips
Semiconductors
Data sheet status
[1]
Objective data
Preliminary data
Product data
Product
status
[2] [3]
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. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
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.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Level
I
II
III