TPS650532RGET

Product Summary

The TPS650532RGET is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS650532RGET provides two highly efficient, 2.25MHz 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. Both converters of the TPS650532RGET allow the use of small inductors and capacitors to achieve a small solution size. TPS650532RGET provides an output current of up to 1A on the DCDC1 converter and up to 0.6A on the DCDC2 converter. The TPS650532RGET also integrates one 400mA LDO and two 200mA LDO voltage regulators, which can be turned on/off using separate enable pins on each LDO. Each LDO operates with an input voltage range between 1.5V and 6.5V allowing them to be supplied from one of the step-down converters or directly from the main battery.

Parametrics

TPS650532RGET absolute maximum ratings: (1)Input voltage range on all pins except AGND, PGND, and EN_LDO1 pins with respect to AGND: -0.3 V to 7 V; (2)Input voltage range on EN_LDO1 pin with respect to AGND: –0.3 V to VCC + 0.5 V; (3)Current at VINDCDC1/2, L1, PGND1, L2, PGND2: 1800 mA; (4)Current at all other pins: 1000 mA; (5)Continuous total power dissipation: See Dissipation Rating Table; (6)TA Operating free-air temperature: –40℃ to 85℃; (7)TJ Maximum junction temperature: 125℃; (8)Tstg Storage temperature range: –65℃ to 150℃; (9)Lead temperature 1,6mm (1/16-inch) from case for 10 seconds: 260℃.

Features

TPS650532RGET features: (1)Output Current for DC/DC Converters: – DCDC1 = 1 A; DCDC2 = 0.6 A; (2)DC/DC Converters Externally Adjustable; (3)VIN Range for DC/DC Converters From 2.5 V to 6 V; (4)2.25-MHz Fixed Frequency Operation; (5)Power Save Mode at Light Load Current; (6)180° Out-of-Phase Operation; (7)Output Voltage Accuracy in PWM mode ±1%; (8)Total Typical 32-mA Quiescent Current for Both DC/DC Converters; (9)100% Duty Cycle for Lowest Dropout; (10)One General-Purpose 400-mA LDO; (11)Two General-Purpose 200-mA LDOs; (12)VIN Range for LDOs from 1.5 V to 6.5 V; (13)Available in a 4 mm x 4 mm 24-Pin QFN Package.

Diagrams