SM5811 SILICONMITUS | Alldatasheet

Document overview

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Technical content

Features

 Input Voltage Range: 2.5V to 5.5V  Output Voltage Range: 1.8V to 5.5V - with Digitally Programmable 25mV/steps  Default Output Voltage Setting - V OUT = 3.3V at VREGSEL= Low - V OUT = 3.45V at VREGSEL= High  Up to 2.5A Maximum Load Capability  High Efficiency across a wide input voltage and output current range  OCP, OVP, OTP and UVLO Protected Function  Low Quiescent Current  Forced PWM and Automatic PFM/PWM Mode Selection  Output Fast Discharge Function  Automatic / Seamless Step Up and Step Down Mode Transitions  Supports DVS function  Programmable Registers over I2C Interface  0.4mm pitch, 15-Bump WLCSP

Applications

 Mobile and Smart Phones  Tablet  Portable Devices

Description

The SM5811 is a high current, high efficiency and low quiescent current Buck-Boost converter. The device supports wide input range from 2.5V to 5.5V and wide output range from 1.8V to 5.5V for the application where the input supply voltage is higher or lower than set the output. The device can deliver the maximum 2.5A continuous output current. The internal PWM controller has been optimized for seamless transition between buck and boost mode The SM5811 features I2C interface which be able to control the output voltage and dynamic voltage scaling with slew rate and device status monitoring. The device operates over a -40°C to +85°C ambient temperature range. The SM5811 is available in a 15-bump, 1.4mm × 2.3mm, WLCSP package. Device Information Part Package Size SM5811 15-Bump WLCSP 1.4mm x 2.3mm

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