TPS658643ZWSR.B中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 INTRODUCTION

1.1 MAIN FEATURES

12

? INTEGRATED POWER SUPPLIES

– 3 Programmable Step-Down converters

? Software Controlled Enable/Forced PWM

Mode

? Automatic Power Saving Mode

? Maximum 1.5A Outputs (SM0 and SM2)

? Maximum 2.A Output (SM1)

– 11 Programmable General Purpose LDOs

? 7 With Output Voltages of 1.25V to 3.3V

? 2 With Output Voltages of 0.725V to 1.5V

or 1.25V to 2.586V (factory

programmable)

? 1 “ Always On” With Output Voltages of

1.25V to 3.3V

? 1 With Output Voltage of 1.7V–2.475V

? DISPLAY SUPPORT FUNCTIONS

– 3 PWM Outputs With Programmable

Frequency and Duty Cycle

– Dual RGB LED Drivers

? HOST INTERFACE

– I2C Bus

– Interrupt Controller With Maskable Interrupts

– GPIO Control (4)

? SYSTEM MANAGEMENT

– Power Good Monitoring on all Supply

Outputs

– Software Reset Function

– Hardware On/Off and Reboot Control

– Real Time Counter

– 11 Channel ADC With 3 Operating Modes

? Single Conversion

? Peak Detection

? Averaging

1.2 APPLICATIONS

? Tablet PCs

? Netbooks

? SmartPhones

? Portable Navigation Devices

? Portable Media Players

1.3 DESCRIPTION

The TPS658643 provides an easy to use, fully integrated solution for handheld devices, integrating

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.