Datasheet

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Introduction

1 Introduction

The TPS658643 is a single-chip, power management integrated circuit (IC) with multiple regulated power

supplies, system management, and display functions in a small package. The I2C interface enables

control of a wide range of subsystem parameters. Internal registers have a complete set of status

information, enabling easy diagnostics and host-controlled handling of fault conditions.

1.1 Features

• Three programmable step-down converters

– Eleven programmable general-purpose LDOs

• Three PWM outputs with programmable frequency and duty cycle

• Dual RGB LED drivers

• Eleven-channel ADC with three operating modes

• Power-Good monitoring on all supply outputs

• Interrupt controller with maskable interrupts

1.2 Applications

• Tablet Portable Computers

• Netbooks

• Smart phones

• Portable navigation devices

• Portable media players

1.3 Requirements

In order to operate this EVM properly, the hardware must be connected and properly configured. All

components and connectors are installed on the EVM as shipped, except the dc power supplies.

2 Electrical Performance Specifications

Input voltage, VIN, 3 V to 5.5 V

Output current, step-down converters, 1.5 A (SMO, SM2) and 2 A (SM1)

Output voltage LDOs, seven with output voltages of 1.25 V to 3.3 V, two with output voltages of 0.725 V to

1.5 V, one always on with output voltage of 1.25 V to 3.3 V, one with output voltage of 1.7 V to 2.475 V.

SLVU582A–December 2011–Revised May 2012 TPS658643 System Evaluation Board

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