The TPS75003 is a triple-supply power management IC from Texas Instruments (TI) that integrates two 95% efficient 3A buck controllers and one 300mA LDO to provide a complete power management solution for FPGAs, DSPs, and other multi-supply applications. The device has been tested with and meets all of the Xilinx Spartan-3, Spartan-3E and Spartan-3L start-up profile requirements, including monotonic voltage ramp and minimum voltage rail rise time. Independent Enables for each output allow sequencing to minimize demand on the power supply at start-up. Soft-start on each supply limits inrush current during start-up. Two integrated buck controllers allow efficient, cost-effective voltage conversion for both low and high current supplies such as core and I/O. A 300mA LDO is integrated to provide an auxiliary rail such as VCCAUX on the Xilinx Spartan-3 FPGA. All three supply voltages are offered in fixed voltage output configurations to enhance design flexibility.
The TPS75003 is a triple‑supply power‑management IC designed for FPGA, DSP and other multi‑supply applications. It integrates two 3 A buck controllers and a 300 mA LDO, offering adjustable output voltages from 1.0 V to 6.5 V. The device is qualified for Xilinx Spartan‑3 families and operates over an input range of 2.2 V to 6.5 V.
The IC is supplied in a compact 4.5 mm × 3.5 mm × 0.9 mm QFN package and is specified for operation from –40 °C to +85 °C. Electrical characteristics, absolute maximum ratings, and typical application circuits are provided, along with package option details and regulatory notices.
| Input Voltage Range | 2.2 V to 6.5 V |
|---|---|
| Buck Controller Current | 3 A |
| LDO Output Current | 300 mA |
| Adjustable Output Voltage Range | 1.0 V to 6.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Package Size | 4.5 mm × 3.5 mm × 0.9 mm QFN |
| Efficiency | up to 95 % |
The TPS75003 operates with an input voltage from 2.2 V to 6.5 V.
The device contains two independent 3 A buck converters.
The integrated LDO can supply up to 300 mA.
It is offered in a 4.5 mm × 3.5 mm × 0.9 mm QFN package.