TPS650243-Q1

TPS650241-Q1, TPS650243-Q1, TPS650244-Q1 www.ti.com SLVS994A – SEPTEMBER 2009 – REVISED MARCH 2011 POWER MANAGEMENT ICs FOR Li-ION POWERED SYSTEMS Check for Samples: TPS650241-Q1, TPS650243-Q1, TPS650244-Q1 FEATURES 1 APPLICATIONS 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 Voltage (VDCDC2) PDA Cellular/Smart Phone GPS Digital Still Camera Split Supply DSP and Microprocessor Solutions: Samsung ARM-Based Processors, etc. – 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 DESCRIPTION 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, ste...