TPS40090EVM-001: 1.5V @ 100A, 12 Vin

Summary

The TPS40090EVM−001 multi-phase dc-to-dc converter utilizes the TPS40090 multi-phase controller and UCC27222 predictive gate driver to step down a 12-V input to 1.5V @ 100 A at 420 kHz.

The TPS40090 provides fixed-frequency, peak current-mode control with forced-phase current balancing. Phase currents are sensed by the voltage drop across the DC resistance (DCR) of inductors. Other features include a single voltage operation, true differential output voltage sense, user programmable current limit, capacitor-programmable soft-start and a power good indicator. Device operation is specified in the TPS40090 datasheet.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-20593-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	1.5 V
Current Out	100 A
Voltage In	10.5 ~ 14.5 V
Efficiency @ Conditions	>86%, 12V in, 1.5V @ 10 ~ 100 A
Voltage Out Range
Features	Current Limit (Adj. or Fixed) Power Good Output Soft Start
Switching Frequency	415 kHz
Standby Current [Typical]	2 µA
Quiescent Current [Typical]	4 mA
Component Count + Extras	136 + 14
Internal Switch	No
Design Author	Texas Instruments
Application / Target Market	Computers
Standby Current [Maximum]	10 µA
Quiescent Current [Maximum]	6 mA
Main I.C. Base Part	TPS40090
Date Created By Author
Date Added To Library	2011-03