NCP731ADN330R2G

LDO Regulator

The NCP731ADN330R2G is a ldo regulator from onsemi. View the full NCP731ADN330R2G datasheet below including key specifications.

Manufacturer

onsemi

Key Specifications

Parameter	Value
Packaging	Cut Tape
Standard Pack Qty	3000

Overview

Part: NCP731

Type: LDO Regulator, Low Noise

Description: A low noise, low quiescent current LDO regulator designed for up to 38 V input voltage and 150 mA output current, featuring 8 mVRMS noise and fast transient response.

Operating Conditions:

Supply voltage: 2.7–38 V
Operating temperature: -40 to +125 °C
Output current: 0.1 mA to 150 mA
Output voltage range: 1.2 V to 35 V (adjustable)

Absolute Maximum Ratings:

Max supply voltage: 40 V
Max junction temperature: 150 °C
Max storage temperature: -55 to 150 °C

Key Specs:

Output Voltage Accuracy: ±0.6% (Tj = +25 °C)
Quiescent Current: 48 μA typ. (I OUT = 0 mA)
Shutdown Current: 0.07 μA typ. (V EN = 0 V, V IN = 38 V)
Output Noise Voltage: 8.1 μVRMS typ. (10 Hz to 100 kHz, ADJ version)
Dropout Voltage: 230 mV typ. (I OUT = 150 mA)
Power Supply Ripple Rejection: 80 dB typ. (10 Hz, V IN = V OUT-NOM + 2 V, I OUT = 10 mA)
Output Current Limit: 210 mA min, 295 mA typ.
Thermal Shutdown Temperature: 170 °C typ.

Features:

Output Voltage Adjustable Range: 1.2 V to 35 V
Fixed Output Voltage Versions: 3.3 V and 5.0 V
Programmable Soft Start Circuit
Over-Current and Thermal Shutdown Protections
Stable with Small 1 μF Ceramic Capacitors
Enable input pin

Applications:

Post DC-DC Converter Regulation and Ripple Filtering
Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
Test and Measurement
Metering
Industrial Instrumentation
Battery Powered Devices

Package:

Micro-8 EP (MSOP8 EP 3x3 CASE 846AT)

Features

Output Voltage Adjustable Range: 1.2 V to 35 V
Operating Input V oltage Range: 2.7 V to 38 V
Fixed Output Voltage Versions: 3.3 V and 5.0 V (other voltage versions on request)
Low Quiescent Current: 48 m A typ.
Very Low Noise: 8 m VRMS (10 Hz to 100 kHz)
Low Shutdown Current: 100 nA typ.
Output Voltage Accuracy ± 0.6% (25 ° C)
Low Dropout: 290 mV typ. at 150 mA
Programmable Soft Start Circuit
Over -Current and Thermal Shutdown Protections
Stable with Small 1 m F Ceramic Capacitors
Available in Micro -8 EP Package
Device is Pb -Free and RoHS Compliant

Applications

Post DC -DC Converter Regulation and Ripple Filtering
Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
Test and Measurement
Metering
Industrial Instrumentation
Battery Powered Devices

MSOP8 EP 3x3 CASE 846AT

Pin Configuration

Pin Number	Pin Name	Description
8	IN	Power supply input pin.
4	GND	Ground pin.
1	OUT	LDO output pin.
5	EN	Enable input pin (high = enable, low = disable). If this pin is not needed it should be conned to IN pin. No internal pull - up or pull - down circuit is present.
2	ADJ/FF	ADJ version - pin is ADJ • Adjust input pin. Could be connected directly or by the resistor divider to the output pin. FIX versions - pin is FF • Feed forward capacitor pin. Could be connected by C FF capacitor to OUT pin for better dynamic performance & lower noise or left unconnected .
3, 7	NC	Not internally connected. Could be left unconnected or connected to GND.
6	SS	Soft - start input pin. Connect a C SS capacitor to set soft - start time. Could be left floating if not used.
EP	EPAD	Exposed pad, must be connected to GND.

Thermal Information

When the LDO's die temperature exceeds the thermal shutdown threshold value, the device is internally disabled. The IC will remain in disabled state until the die temperature decreases by the thermal shutdown hysteresis value. Then the LDO is back enabled.

The thermal shutdown feature provides the protection against overheating due to application failure and it is not intended to be used as a normal working function.

Typical Application

Post DC -DC Converter Regulation and Ripple Filtering
Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
Test and Measurement
Metering
Industrial Instrumentation
Battery Powered Devices

MSOP8 EP 3x3 CASE 846AT

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