TPS65051 Datasheet | Texas Instruments

Features - 1 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-m A, High PSRR LDOs - Two General-Purpose 200-m A, High PSRR LDOs - VI range for LDOs From 1.5 V to 6.5 V - Digital Voltage Selection for the LDOs 2 Applications - Cell Phones, Smart Phones - WLAN - PDAs, Pocket PCs - OMAP™ and Low-Power TMS320™ DSP Supply - Samsung S3C24xx Application Processor Supply - Portable Media Players 3 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. Both step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. For low noise applications, the devices can be forced into fixed-frequency PWM mode by pulling the MODE pin high. The TPS6505x devices also integrate two 400-m A LDO and two 200m A LDO voltage regulators. Each LDO operates with an input voltage range from 1.5 V to 6.5 V, allowing them to be supplied from one of the step-down converters or directly from the main battery. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS6505x VQFN (32) 4.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data...