NJM2871B/72B

-1-

Ver.2006-02-20

NJM2871BF/72BF

Low Dropout Voltage Regulator

! GENERAL DESCRIPTION

! PACKAGE OUTLINE

The NJM2871B/72B are low dropout voltage regulator designed for

cellular phone applications.

Advanced Bipolar technology achieves low noise, high ripple

rejection and low quiescent current.

! FEATURES

" High Ripple Rejection

75dB typ. (f=1kHz Vo=3V version)

" Output Noise Voltage

Vno=30

µVrms typ. (Cp=0.01µF)

" Output capacitor with 1.0uF ceramic capacitor(Vo

≥2.7V: Version)

" Output Current

Io(max.)=150mA

" High Precision Output

Vo

±1.0%

" Low Dropout Voltage

0.10V typ. (Io=60mA)

" Input Voltage Range

+2.3

∼ +14V(Vo≤2.0V version)

" ON/OFF Control

(Active High)

" Internal Short Circuit Current Limit

" Internal Thermal Overload Protection

" Bipolar Technology

" Package Outline

SOT-23-5 (MTP5)

! PIN CONFIGURATION

! EQUIVALENT CIRCUIT

Thermal

Protection

Bandgap

Reference

Noise

Bypass

Control

GND

12 3

4

5

12 3

4

5

1. CONTROL (Active High)

2. GND

3. NOISE BYPASS

2. GND

3. CONTROL (Active High)

4. NOISE BYPASS

NJM2871BF

12 3

4

5

12 3

4

5

NJM2872BF