TPS65051RSMRG4

6通道电源管理IC具有两个降压型转换器和4低输入电压LDO 6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT VOLTAGE LDOs

Description

The TPS6505x family of devices are integrated power-management ICs for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS6505x devices provide two highly efficient, 2.25-MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor-based system.

Features

• Up To 95% Efficiency

• Output Current for DC-DC Converters:

   – TPS65050, TPS65054: 2 × 0.6 A

   – TPS65051, TPS65052 and TPS65056: DCDC1 = 1 A; DCDC2 = 0.6 A

• Output Voltages for DC-DC Converters

   – Externally Adjustable and Fixed Versions Available

   – Digital Voltage Selection for the DCDC2

• VI Range for DC-DC Converters From 2.5 V to 6 V

• 2.25-MHz Fixed-Frequency Operation

• Power Save Mode at Light Load Current

• 180° Out-of-Phase Operation

• Output Voltage Accuracy in PWM Mode ±1%

• Total Typical 32-μA Quiescent Current for Both DC-DC Converters

• 100% Duty Cycle for Lowest Dropout

• Two General-Purpose 400-mA, High PSRR LDOs

• Two General-Purpose 200-mA, High PSRR LDOs

• VI range for LDOs From 1.5 V to 6.5 V

• Digital Voltage Selection for the LDOs

Applications

• Cell Phones, Smart Phones

• WLAN

• PDAs, Pocket PCs

• OMAP™ and Low-Power TMS320™ DSP Supply

• Samsung S3C24xx Application Processor Supply

• Portable Media Players