ChipFind - документация

Электронный компонент: NJM2863F

Скачать:  PDF   ZIP
NJM2863/64
- 1 -
Ver.2003-03-10
LOW DROPOUT VOLTAGE REGULATOR
s
GENERAL DESCRIPTION
s
PACKAGE OUTLINE
The NJM2863/64 is a low dropout voltage regulator designed
for VCO application.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
s
FEATURES
q
High Ripple Rejection
75dB typ. (f=1kHz)
q
Output Noise Voltage
Vno=19
Vrms typ. (Cp=0.01
F, Co=1.0
F(Ceramic))
Vno=12
Vrms typ. (Cp=0.1
F, Co=10
F(Tantalum))
q
Output capacitor with 1.0uF ceramic capacitor
q
Output Current
Io(max.)=100mA
q
High Precision Output
Vo
1%
q
Low Dropout Voltage
0.10V typ. (Io=60mA)
q
ON/OFF Control
(Active High)
q
Internal Short Circuit Current Limit
q
Internal Thermal Overload Protection
q
Bipolar Technology
q
Package Outline
MTP5 (MTP5:2.82.91.1mm)
s
PIN CONFIGURATION
1
5
2
3
4
1
5
2
3
4
NJM2863F NJM2864F
s
EQUIVALENT CIRCUIT
V
OUT
GND
V
IN
Thermal
Protection
Bandgap
Reference
Noise
Bypass
Cont
s
OUTPUT VOLTAGE RANK LIST


Device Name
V
OUT
NJM286
F27
2.7V
NJM286
F28
2.8V
NJM286
F29
2.9V
NJM286
F03
3.0V
NJM2863F
NJM2864F
PIN FUNCTION
1. CONTROL (Active High)
2. GND
3. NOISE BYPASS
4. V
OUT
5. V
IN
PIN FUNCTION
1.V
IN
2.GND
3.CONTROL (Active High)
4.NOISE BYPASS
5.V
OUT
NJM2863/64
- 2 -
Ver.2003-03-10
s
ABSOLUTE MAXIMUM RATINGS
(Ta=25
C)
PARAMETER SYMBOL
RATINGS
UNIT
Input Voltage
V
IN
+14 V
Control Voltage
V
CONT
+14(note
1) V
Power Dissipation
P
D
200
mW
Operating Temperature
Topr
-
40
+85
C
Storage Temperature
Tstg
-
40
+125
C
(note 1) When input voltage is less than +14V, the absolute maximum control
voltage is equal to the input voltage.
s
ELECTRICAL CHARACTERISTICS
(V
IN
=Vo+1V, C
IN
=0.1
F, Co=1.0uF, Cp=0.01
F, Ta=25
C)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Output Voltage
Vo
Io=30mA
-1%
-
+1% V
Quiescent Current
I
Q
Io=0mA, expect Icont
-
120 180
A
Quiescent Current
at Control OFF
I
Q(OFF)
V
CONT
=0V
-
-
100 nA
Output Current
Io
Vo
-
0.3V
100 130 - mA
Line Regulation
Vo/
V
IN
V
IN
=Vo+1V
Vo+6V, Io=30mA
-
-
0.10 %/V
Load Regulation
Vo/
Io Io=0
60mA
-
-
0.03 %/mA
Dropout Voltage
V
I
-
O
Io=60mA
-
0.10 0.18 V
Ripple Rejection
RR
ein=200mVrms,f=1kHz, Io=10mA,
Vo=3V Version
-
75
-
dB
Average Temperature
Coefficient of Output
Voltage
Vo/
Ta Ta=0
+85
C, Io=10mA
-
50
-
ppm/
C
Output Noise Voltage 1
V
NO1
f=10Hz
80kHz, Io=10mA,
Cp=0.01
F, Co=1.0uF(Ceramic)
Vo=3V Version
-
19
-
Vrms
Output Noise Voltage 2
V
NO2
f=10Hz
80kHz, Io=10mA,
Cp=0.1
F, Co=10uF(Tantalum)
Vo=3V Version
-
12
-
Vrms
Control Voltage for
ON-state
V
CONT(ON)
1.6
-
-
V
Control Voltage for
OFF-state
V
CONT(OFF)
-
-
0.6 V
(note 2) The above specification is a common specification for all output voltages.
Therefore, it may be different from the individual specification for a specific output voltage.
s
TEST CIRCUIT

V
IN
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
0.1uF
I
IN
I
CONT
V
CONT
Cp=0.01uF
I
OUT
V
OUT
V
V
A
A
1.0uF
(ceramic)
NJM2863/64
- 3 -
Ver.2003-03-10
s
TYPICAL APPLICATION
x
In case that ON/OFF Control is not required:
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
0.1uF
Cp=0.01uF
V
OUT
V
IN
R
(0
300k
)
1.0uF
(ceramic)
Connect control terminal to V
IN
terminal
The quiescent current can be reduced by using a resistance "R". Instead, it increases the minimum operating
voltage. For further information, please refer to Figure "Output Voltage vs. Control Voltage".
y
In use of ON/OFF CONTROL:
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
0.1uF
Cp=0.01uF
V
OUT
V
IN
R
1.0uF
(ceramic)

State of control terminal:
"H"
output is enabled.
"L" or "open"
output is disabled.
Noise bypass Capacitance Cp
Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit.
Noise level and ripple rejection will be improved when larger Cp is used.
Use of smaller Cp value may cause oscillation.
Use the Cp value of 0.01uF greater to avoid the problem.




NJM2863/64
- 4 -
Ver.2003-03-10



























[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.