Harman Kardon AVR 151S Service Manual ▷ View online
Harman Kardon
Page 89 of 131
NJM2845/46
- 1 -
Ver.2005-01-20
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJM2845 is low dropout voltage regulator. Advanced
Bipolar technology achieves low noise, high ripple rejection
and low quiescent current.
NJM2845 is 3 terminal type and NJM2846 is ON/OFF control
built in type. These product can be selected according to the
applications.
FEATURES
z
High Ripple Rejection
75dB typ. (f=1kHz,3V Version)
z
Output Noise Voltage
Vno=45
μVrms typ. (Vo=3V Version)
z
Output capacitor with 2.2
μF ceramic capacitor (Vo≥2.6V)
z
Output Current
Io(max.)=800mA
z
High Precision Output
Vo
±1.0%
z
Low Dropout Voltage
0.18V typ. (Io=500mA)
z
ON/OFF Control
(NJM2846)
z
Internal Short Circuit Current Limit
z
Internal Thermal Overload Protection
z
Bipolar Technology
z
Package Outline
TO-252-3 (NJM2845DL1), TO-252-5 (NJM2846DL3)
PIN CONFIGURATION
NJM2845DL1
NJM2846DL3
EQUIVALENT CIRCUIT
V
OUT
Thermal
Protection
Protection
Bandgap
Reference
Reference
V
IN
GND
V
OUT
Thermal
Protection
Protection
Bandgap
Reference
Reference
V
IN
Control
GND
1.V
IN
2.GND
3.V
3.V
OUT
3
1
2
1.CONTROL
2.V
2.V
IN
3.GND
4.Vo
5.NC
4.Vo
5.NC
NJM2845DL1
NJM2846DL3
NJM2845DL1
NJM2846DL3
1 2 3 4 5
3
Harman Kardon
Page 90 of 131
Harman Kardon
Page 91 of 131
Harman Kardon
Page 92 of 131
Click on the first or last page to see other AVR 151S service manuals if exist.