NJM2891 Datasheet, PDF (1/10 Pages) New Japan Radio – 2ch LOW DROPOUT VOLTAGE REGULATOR

NJM2891
2ch LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2891 is low dropout voltage regulator designed
for cellular phone application.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
FEATURES
High Ripple Rejection 70dB typ. (f=1kHz , Vo=3V Version)
Output Noise Voltage Vno=30µVrms typ.(Cp=0.01µF)
Output capacitor with 1.0µF ceramic capacitor (Vo≥2.7V)
Output Current
Io(max.)=150mA × 2ch
High Precision Output Vo±1.0%
Low Dropout Voltage 0.10V typ. (Io=60mA)
ON/OFF Control
(Active High)
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
FFP12-B1 (2.0×2.0×0.85mm)
PACKAGE OUTLINE
NJM2891PB1
PIN CONFIGURATION
98 7
7 89
10
6
6
10
11
5
5
11
12
4
4
12
123
3 21
TOP
BOTTOM
NJM2891PB1
EQUIVALENT CIRCUIT
PIN FUNCTION
1. V_OUT2
2. V_OUT2
3. GND
4. CONTROL2
5. V_IN2
6. V_IN1
7. CONTROL1
8. V_OUT1
9. V_OUT1
10. NOISE BYPASS1
11. NC
12. NOISE BYPASS2
V_IN1/ V_IN2
Cont1/Cont2
Bandgap
Reference
Thermal
Protection
V_OUT1/ V_OUT2
Noise Bypass1 /
Noise Bypass2
GND