TPS650242中文资料面向锂离子电池供电系统的电源管理 IC (PMIC)数据手册TI规格书

描述 Description

The TPS65024x devices are integrated power management ICs for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS65024x provide three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O, and memory rails in a processor-based system. All three step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents. The converters can be forced into fixed-frequency PWM mode by pulling the MODE pin high.

特性 Features

• 1.6-A, 1.0-A, or 0.8-A, 97% Efficient Step-Down Converter for System Voltage (VDCDC1)
• 3.3 V or 2.80 V or Adjustable

• 1.6-A, 1.0-A, or 0.8-A, up to 95% Efficient Step-Down Converter for Memory Voltage (VDCDC2)
• 1.8 V or 2.5 V or Adjustable

• 0.8-A, 90% Efficient Step-Down Converter for Processor Core (VDCDC3)
• Two Selectable Voltages for VDCDC3
• TPS650240:
• DEFDCDC3 = LOW: VO = 1.0 V
• DEFDCDC3 = HIGH: VO = 1.3 V

• TPS650241:
• DEFDCDC3 = LOW: VO = 0.9 V
• DEFDCDC3 = HIGH: VO= 1.375 V

• TPS650242:
• DEFDCDC3 = LOW: VO = 1.0 V
• DEFDCDC3 = HIGH: VO = 1.5 V

• TPS650243:
• DEFDCDC3 = LOW: VO = 1.0 V
• DEFDCDC3 = HIGH: VO = 1.2 V

• TPS650244:
• DEFDCDC3 = LOW: VO = 1.55 V
• DEFDCDC3 = HIGH: VO = 1.6 V

• TPS650245:
• DEFDCDC3 = LOW: VO = 0.9 V
• DEFDCDC3 = HIGH: VO = 1.1 V


• 30-mA LDO for Vdd_alive
• 2 × 200-mA General-Purpose LDOs (LDO1 and LDO2)
• Dynamic Voltage Management for Processor Core
• LDO1 and LDO2 Voltage Externally Adjustable
• Separate Enable Pins for Inductive Converters
• 2.25-MHz Switching Frequency
• 85-μA Quiescent Current
• Thermal Shutdown Protection