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NJM2842

Very Low Output Low Dropout Regulator

Japan Radio Corporation  

NJM2842

Very Low Output Low Dropout Regulator

GENERAL DESCRIPTION

The NJM2842 is a very low output voltage, low drop out

regulators.

It delivers up to 1A output current with the output voltage of

0.8 to 1.8V.

The use of an external bias voltage can improve the

transient response and the ripple rejection characteristics

while maintaining minimum input to output voltage.

PACKAGE OUTLINE

NJM2842U2

NJM2842KH1

FEATURES

• Output Voltage Range

0.8V to 1.8V

• High Ripple Rejection

• Output Noise Voltage

• Output Current

• High Precision Output

• Dual Supply Voltage Type

• High Stability for Load

91 dB typ.( VO=1.2V)

VNO=44 µVrms

IO(max)=1.0A

VO±1.0%

VIN, VBIAS (sequence free)

0.002%/mA (max)

• Output Capacitor with 4.7µF ceramic capacitor (VO>1.0V)

• Low Dropout Voltage

0.2V typ. @IO=600mA

• ON/OFF Control

• Built-in Thermal Overload Protection and Short Circuit Current Limit Protection

• Bipolar Technology

• Package Outline

SOT-89-5, ESON6-H1, TO252-5

NJM2842DL3

PIN CONNECTION

524

123

1. CONTROL

2. GND

3. VOUT

4. VIN

5.VBIAS

NJM2842U2

6 54

12

1 23

65

NJM2842KH1

3

3

1. VOUT

2. VBIAS

3. N.C.

1. CONTROL

2. VOUT

4. CONTROL

3. GND

5. GND

4 Exposed Pad 6. VIN

12345

4. VIN

5.VBIAS

（Connected to GND）

NJM2842DL3

BLOCK DIAGRAM

VIN

VBIAS

CONTROL

Bandgap

Reference

Thermal

Protection

VOUT

GND

Over Current

Protection

Ver.2011-02-18

-1-

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