AS1372

350mA Dual Rail Linear Regulator

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Data sheet

1 General Description

The AS1372 is a Dual Supply Rail Linear Regulator

designed for providing ultra-low voltages.

In a typical application the battery is directly connected

Converter.

The very low quiescent currents together with the

excellent transient features and the superior dropout are

making the AS1372 an ideal device for applications

running on batteries.

The robust design ensures that no under-voltage failure

can occur and the device is also equipped with an

internal protection against over-temperature and over-

current.

The device is available in fixed output voltages from

0.5V up to 2.2V in 100mV steps (50mV from 0.5V to

1.1V).

The AS1372 is available in a 5-bumps CS-WLP package

and is qualified for -40°C to +85°C operation.

2 Key Features

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Input Voltage: 0.7V to 4.5V

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Bias Supply Voltage: 2.5V to 5.5V

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Output Voltage: 0.5V to 2.2V in 100mV steps

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Output Voltage Accuracy: ±1.5%

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Dropout Voltage 135mV @ 350mA load

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Max. Output Current: 350mA

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Load Transient Response: ±15mV (typ.)

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Superior Efficiency

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Low Shutdown Current: 10nA

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High PSRR: >80dB @ 10Hz-1kHz, 60db @100kHz

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Integrated Overtemperature/Overcurrent Protection

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Chip Enable Input

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Operating Temperature Range: -40°C to +85°C

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5-bumps CS-WLP Package

3 Applications

The devices are ideal for powering cordless and mobile

phones, MP3 players, PDAs, hand-held computers,

digital cameras, and any other hand-held and/or battery-

powered device.









 

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Figure 1. AS1372 - Typical Application Diagram