L4938EPD

高级稳压器 ADVANCED VOLTAGE REGULATOR

The L4938ED and are monolithic integrated dual voltage regulators with two very low dropout outputs and additional functions such as power-on reset and input voltage sense. They are designed for supplying microcomputer controlled systems especially in automotive applications.

**Key Features**

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Output 2 voltage 5 V ± 2% with 400 mA current capability ADJ wired to VOUT2

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High precision standby output voltage 5 V ± 1% with 100 mA current capability

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Output 2 disable function for standby mode

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Enable and sense inputs EN, SI protected against negative transients down to -5 V

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Extremely low quiescent current, 65 μA less than 90 μA in standby mode

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Reset threshold adjustable from 3.8 V to 4.7 V

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Operating transient supply voltage up to 40 V

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Output 2 voltage adjustable by external voltage divider

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Operating DC supply voltage range 5 V - 28 V