TPS650244IRHBRQ1

具有 3 个降压转换器和 3 个 LDO 的汽车类 1.5V 至 6.5V 电源管理 IC 32-VQFN -40 to 125

DESCRIPON

The TPS65024x 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.

FEATURES

• Qualified for Automotive Applications

• 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 VoltageVDCDC2

  – 1.8 V or 2.5 V or Adjustable

• 0.8-A 90% Efficient Step-Down Converter for Processor Core VDCDC3

• Three Selectable Voltages for VDCDC3

  – TPS650241

    – DEFDCDC3 = LOW: VO = 0.9 V

    – DEFDCDC3 = HIGH: VO = 1.375 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

• 30-mA LDO for Vdd_alive

• Two 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

APPLICATIONS

• PDA

• Cellular/Smart Phone

• GPS

• Digital Still Camera

• Split Supply DSP and Microprocessor Solutions: Samsung ARM-Based Processors, etc.