VOLTAGE REGULATOR. NJM2837 Datasheet

NJM2837 REGULATOR. Datasheet pdf. Equivalent

NJM2837 Datasheet
Recommendation NJM2837 Datasheet
Part NJM2837
Description LOW DROPOUT VOLTAGE REGULATOR
Feature NJM2837; NJM2837 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2837 is a 1A output low dropout v.
Manufacture New Japan Radio
Datasheet
Download NJM2837 Datasheet




New Japan Radio NJM2837
NJM2837
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2837 is a 1A output low dropout voltage regulator.
This product has Reverse Current Protection without
external SBD
Advanced Bipolar technology achieves low noise, high
ripple rejection and high supply voltage.
2.4V to 15V output voltage range, 2.2µF small decoupling
capacitor, built-in noise bypass capacitor make the NJM2837
suitable for various applications.
PACKAGE OUTLINE
NJM2837DL3
FEATURES
Output voltage options available 2.4 to 15.0V
High Ripple Rejection 80dB typ. (f=1kHz,VO=3V Version)
Output Noise Voltage Vno=45µVrms typ.
Output capacitor with 2.2µF ceramic capacitor (VO5.1V)
Output Current
IO(max.)=1A
High Precision Output VO±1.0%
Low Dropout Voltage 0.2V typ. (IO=600mA)
Internal Thermal Overload Protection
Internal Over Current Protection
Bipolar Technology
Package Outline
TO-252-5
PIN CONFIGURATION
3
12 3 4 5
NJM2837DL3
PIN FUNCTION
1.CONTROL
2.VIN
3.GND
4.VO
5.NC
EQUIVALENT CIRCUIT
VIN
CONTROL
Reverse
Current
Protection
Bandgap
Reference
Thermal
Protection
VOUT
GND
Current
Limit



New Japan Radio NJM2837
NJM2837
OUTPUT VOLTAGE RANK LIST
Device Name
NJM2837DL3-24
NJM2837DL3-03
NJM2837DL3-05
VOUT
2.4V
3.0V
5.0V
Device Name
NJM2837DL3-85
NJM2837DL3-12
NJM2837DL3-15
VOUT
8.5V
12.0V
15.0V
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL RATINGS
UNIT
Input Voltage
Control Voltage
Output Terminal Voltage
Power Dissipation
Operating Temperature
Storage Temperature
VIN
VCONT
Vo.max
PD
Topr
Tstg
+20
+20
VO+1
1190 (*1)
3125(*2)
-40 to +85
-40 to +150
V
V
V
mW
°C
°C
(*1): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm2)
(*2): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard, 4Layers)
(For 4Layers: Applying 74.2 74.2mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5)
ELECTRICAL CHARACTERISTICS
(VIN= VO+1V, CIN=1.0µF, CO=2.2µF (2.9V<VO5V: CO=4.7µF,VO2.9V:CO=10µF), Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN TYP MAX UNIT
Output Voltage
VO IO=30mA
-1.0% - +1.0% V
Quiescent Current
Quiescent Current
at Control OFF
IQ
IQ(OFF)
IO=0mA
VCONT=0V
VO5V Version
5V<VO10V Version
10V<VO15V Version
- 420 570 µA
- 435 585 µA
- 450 600 µA
- - 100 nA
Output Current
Line Regulation
Load Regulation
Dropout Voltage
Ripple Rejection
Average Temperature
Coefficient of Output
Voltage
IO
VO/VIN
VO/IO
VI-O
RR
VO×0.9V
VIN=VO+1V to VO+6V(VO12V),
VIN=VO+1V to 18V(VO>12V),
IO=30mA
IO=0 to 1000mA
IO=600mA
ein=200mVrms, f=1kHz, IO=10mA
VO/Ta Ta=0 to 85°C, IO=10mA
1000 1300 -
mA
- - 0.10 %/V
- - 0.004 %/mA
- 0.20 0.28 V
See Fig.1
dB
- ± 50 - ppm/°C
Output Noise Voltage
Control Current
Control Voltage for
ON-state
VNO
ICONT
VCONT(ON)
f=10Hz to 80kHz, IO=10mA
VCONT=1.6V
See Fig.1
- 3 12
1.6 -
-
µVrms
µA
V
Control Voltage for
OFF-state
VCONT(OFF)
- - 0.6 V
Input Voltage
VIN
- - 18 V



New Japan Radio NJM2837
NJM2837
Fig. 1
Output
Voltage
2.4V
3.0V
5.0V
8.5V
12.0V
15.0V
MIN.
-
-
-
-
-
-
Ripple Rejection
TYP. MAX.
82 -
80 -
77 -
73 -
70 -
68 -
Unit
dB
MIN.
-
-
-
-
-
-
Output Noise Voltage
TYP.
MAX.
Unit
41 -
45 -
68
107
-
-
µVrms
148 -
173 -







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