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AS3701 Micro-PMIC

1 buck DC-DC, 2 LDOs, 500mA power path management linear charger, programmable startup

Features

  • Multiple rails in a compact design for low power applications
  • Self-contained Li-ion battery charger with power path management
  • Flexible multi-purpose IOs for general control tasks and for standalone operation with I²C interface
  • Flexible and fast adaption to different processors/applications
  • Cost effective, small package optimized for low PCB cost and size

Benefits

  • Linear charger with internal transistor
  • Trickle/Constant current and constant voltage
  • 2 programmable current sources up to 40mA
  • Low battery and Power Good output
  • Standby function with programmable voltages

Product parameters

DC-DC Step Up Converters
DC-DC Step Down Converters 1x0.5A
Special LDOs [mA]
Universal LDOs [mA] 2x200
Current Sinks [mA] 2x40
Charge Pump [V/mA]
Audio DAC [dB SNR]
Audio ADC [dB SNR]
Audio Features
General Purpose ADC [bit]
Charger Linear
Customizable Startup Sequences Programmable
Package WL-CSP-20, 0.4mm pitch

General Description

The AS3701 is a small microPMIC for small size and low power applications. AS3701 features one 500mA DC-DC buck converter operating at 1MHz up to 4MHz, two 200mA LDOs, two 40mA current sinks and offers additional GPIO functions. Further, the device contains an integrated power path management 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.

This product suits for the following applications:

  • Sport watches
  • Smart watches
  • Handheld GPS devices
  • Mobile phones
  • Other 1-cell Li+ powered devices

Tools

Title Category Headline Buy
AS3701EvalKit Application Board Evaluation Kit for AS3701

Technical Documents

Name Type Description Version Language
AS3701_AN000426_1-00.pdf Application Note OTP specification -52 (AS3701A) 1-00 English
AS3701_AN000425_1-00.pdf Application Note OTP specification -07 (AS3701B) 1-00 English
AS3701_AN000385_1-00.pdf Application Note OTP specification -06 1-00 English
AS3701_AN000380_1-00.pdf Application Note OTP specification -51 (AS3701A) 1-00 English
AS3701_AN000282_2-00.pdf Application Note OTP specification -68 2-00 English
AS3701_AN000281_2-00.pdf Application Note OTP specification -05 2-00 English
AS3701_AN000280_2-00.pdf Application Note OTP specification -50 (AS3701A) 2-00 English
AS3701_AN000276_2-00.pdf Application Note OTP specification -04 2-00 English
AS3701_AN000275_2-00.pdf Application Note OTP specification -03 2-00 English
AS3701_AN000274_2-00.pdf Application Note OTP specification -02 2-00 English
AS3701_AN000273_2-00.pdf Application Note OTP specification -01 2-00 English
AS3701_BD000294_1-00.png Block Diagram AS3701 Block Diagram 1-00 English
AS3701_DS000366_4-00.pdf Datasheet Document version 1-11 4-00 English
AS3701_PD000292_1-00.png Other Product Document AS3701EvalKit Image 1-00 English
AS3701_PN000117_1-00.pdf Product Change Notification PCN11-2016 (AS3701) 1-00 English
AS3701_UG000273_1-00.pdf User Guide Standard board EK 1-00 English

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