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NJM2801U

Low Dropout Voltage Regulator with Reset

Japan Radio Corporation  

NJM2801

PRELIMINARY

Low Dropout Voltage Regulator with Reset

■ GENERAL DISCRIPTION

The NJM2801 is a low dropout voltage regulator with

reset function.

It provides up to 150mA of logic supply, and the reset

function monitors either input or output voltage of the

regulator with 2% accuracy.

It is suitable for local power supply and reset for small

micro controller and other logic chips.

■ PACKAGE OUTLINE

NJM2801F**

NJM2801U**

■ FEATURES

■ PIN CONFIGURATION

• Output Voltage Accuracy Vo = ±2.2%

• Reset Output Voltage

VORH = 3.3V(typ.)

• Reset Hold Time

td = 10mS±2.5mS

• Ripple Rejection

RR=60dB (typ.)

• Quiescent Current

IQ=300µA(max.)

• Open Collector Output

• Bipolar Technology

• Output Voltage Monitor type

• Package Outline

SOT89(5Pin)/MTP5

• Protection Circuit

1.Current limit circuit

2.Thermal overload protection circuit

■ Output Voltage/Reset Validated Voltage

( MTP-5 )

1

5

2

3

4

( SOT-89 )

5

4

123

PART NO

NJM2801-0543

Output Voltage

5.0V

Reset Validated

Voltage

4.3V

1.VIN

2.GND

3.VOR

4.Cd

5.VOUT

1.VOUT

2.GND

3.Cd

4.VOR

5.VIN

■ Block Diaglam

VIN

VOR

VO

Thermal

Protection

GND

Cd

Bandgap

Reference

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