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
