AWP37702CSR

Low Quiescent, High Efficiency 1.5A Buck-Boost Converter with I2C Interface

Datasheet :

Product details

Parameters

Control Interface	IIC
Current Limit (Typ) (A)	3
Load Current (Max) (A)	1.5
Vout (Min) (V)	1.4
Vout (Max) (V)	4.575
Output Type	Adjustable
Temperature	-40℃~85℃
Special Function	PSM Mode PFM Mode PWM Mode
Package (mm)	WLCSP 1.3X1.3-9B

Package | Pins | Size

WLCSP 1.3X1.3-9B

Features

Buck, Buck-Boost and Boost Operation with Seamless Mode Transition 2.2V to 5.5V Input Supply Voltage Range 1.4V to 4.575V Output Voltage Range with Digitally Programmable (25mV/steps) 2.8uA Low Quiescent Current 0.3uA Shutdown Current Excellent Load Transient Response Allows Dynamically-Voltage-Scaling Control (SR:2V/ms, 5V/ms, 10V/ms, 20V/ms) Allows Dynamically-Voltage-Scaling Control Automatic PFM Mode and Forced PWM Mode Selection Up to 1MHz I2C Interface (VSEL=H, ADDR=0X75; VSEL=L, ADDR=0X76) Converter I2C Default EN = 0 Output Voltage Selection (VSEL=H, VOUT=2.875V Default; VSEL=L, VOUT=2.675V Default) Maximum Continuous Output Current: Up to 1A for VIN ≥ 2.5V, VOUT = 3.5V Up to 1.2A for VIN ≥ 3V, VOUT = 4.5V Up to 1.5A for VIN ≥ 4V, VOUT = 4.5V WLCSP 1.3X1.3-9B Package

Description

The AWP37702 is a high-efficiency, single inductor, advanced COT synchronous Buck-Boost converter with 2.2V to 5.5V wide input voltage range and well regulate to the digitally programmable output voltage from 1.4V to 4.575V. Which is suitable for wide input supply range applications, regardless of input voltage is lower, higher than or even equal to the output voltage. The COT control architecture features outstanding line/load transient response, seamless transition between buck and boost modes, provides stable operation with small ceramic output capacitors and without complicated external compensation. The AWP37702 features I2C interface, which allows programmable output voltage, soft-start slew-rate adjusted and device status monitoring. The target output voltage can also be switched through external VSEL pin to perform dynamically-voltage-scaling (DVS), and the ramp-up slew-rate and ramp mode of DVS can also be set by setting the related registers. The AWP37702 has internal soft start module to limits the inrush current. Full protection features include over current protection(OCP), over voltage protection(OVP), under voltage protection(UVP) and over temperature protection(OTP). The AWP37702 is available in WLCSP 1.3X1.3-9B package

Technical documentation

Type	Title	Language	Date
Product Design Guide	AWP3770X_Software_Design_Guide	英文	2025-08-12
Product Design Guide	AWP37702 Application Design Guide	英文	2026-07-10
Datasheet	DS_AWP37702_EN_V1.1	英文	2026-07-10
Reliability Report	Reliability Qualification Report For AWP37702CSR	英文	2026-05-19
Technical articles	【Technical Post】Wearable & Imaging Buck-Boost Solution: AWINIC AWP3770X Addresses Power Supply Challenges for PPG and VCM	英文	2026-04-22

Design & development

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Software development

DRIVER OR LIBRARY

AWP3770X_Driver — Android and other drivers for AWP3770X series

Android and other drivers for AWP3770X series,including sample code,configuration files,porting guide,etc

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Software development

DRIVER OR LIBRARY

AWP3770X_Driver — Android and other drivers for AWP3770X series

Android and other drivers for AWP3770X series,including sample code,configuration files,porting guide,etc

View options