TPS658642ZQZT

先进的电源管理单元 Advanced Power Management Unit

DESCRIPON

The TPS658642 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 nterface 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.

MAIN FEATURES

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 1.20V to 3.3V

• 2 With Output Voltages of 0.80V to 1.5V

• 1 “Always On” With Output Voltages of 2.5V to 3.3V

• 1 With Output Voltage of 1.7V–2.50V

DISPLAY SUPPORT FUNCTIONS

– 3 PWM Outputs With Programmable Frequency and Duty Cycle

– Dual RGB LED Drivers

HOST INTERFACE

– I2C Bus

– Interrupt Controller With Maskable Interrupt

– 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

APPLICATIONS

• Tablet PCs

• Netbooks

• SmartPhones

• Portable Navigation Devices

• Portable Media Players