TPS658643ZWSR.B中文资料德州仪器数据手册PDF规格书

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.