AS3701 datasheet(2/110 Pages) AMSOSRAM

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ams Datasheet

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[v1-11] 2016-Dec-14

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AS3701

Micro-PMIC

The AS3701 is a small compact PMU for small size and low power

applications.

AS3701 features one 500mA DCDC buck converter operating

from 1MHz up to 4MHz, two 200mA LDOs, two 40mA current

sinks and offers additional GPIO functions. Further, the device

contains an integrated linear battery charger with constant

current and constant voltage operation. The wide charging

current range going from 11mA up to 500mA and the integrated

battery temperature monitoring with selectable NTC beta

values make this device suitable for a great variety of

applications.

The single supply voltage may vary from 2.7V to 5.5V and all

functionalities of AS3701 can be controlled via the I²C interface.

Ordering Information and Content Guide appear at end of

datasheet.

Key Benefits & Features

The benefits and features of AS3701, Micro-PMIC are listed

below:

Figure 1:

Added Value of Using AS3701

Benefits

Features

• Multiple rails in a compact design for low

power applications

• 2 x 200mA universal LDO (1.2V to 3.3V)

• 500mA Step-down DCDC (0.6125V to 3.35V)

• 2 programmable current sources up to 40mA

• Possible external PWM dimming input

• Self-contained Li-Ion battery charger with

power path

• Linear charger with internal transistor

• 500mA max charging current

• Trickle-, constant current and constant voltage

operation (3.82V to 4.44V)

• Charger timeout and temperature supervision

• NTC beta selection

• Flexible multi-purpose IOs for general control

tasks and for standalone operation without

I²C interface

• Wake-up / Stand-by / Power-down input

• PWM input/output

• Interrupt input/output

• Low battery and Power Good output

• Charging and USB current setting input

• Charger control input/output

General Description

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