Texas Instruments TPS40422 Dual Output or Multiphase Synchronous Buck Controller Evaluation Module TPS40422EVM-091 TPS40422EVM-091 데이터 시트
제품 코드
TPS40422EVM-091
User
'
s Guide
SLVU638
–
January 2012
Using the PWR091EVM Dual-Output DC/DC Analog With
PMBus Interface
The PWR091EVM evaluation module uses the TPS40422. The TPS40422 is a dual-channel, synchronous
buck controller that operates from a nominal 4.5-V to 20-V supply. This controller is an analog PWM
controller that allows programming and monitoring via the PMBus interface. It can be used as a dual,
independent output or a dual-phase output controller.
buck controller that operates from a nominal 4.5-V to 20-V supply. This controller is an analog PWM
controller that allows programming and monitoring via the PMBus interface. It can be used as a dual,
independent output or a dual-phase output controller.
1
Description
The PWR091EVM is designed as a dual-output converter. It uses a nominal 12-V bus to produce a
regulated 1.2-V output at up to 20 A of load current, and a regulated 3.3-V output at up to 15 A of load
current. The PWR091EVM demonstrates the TPS40422 in a typical low-voltage application while providing
a number of test points to evaluate the performance of the TPS40422.
regulated 1.2-V output at up to 20 A of load current, and a regulated 3.3-V output at up to 15 A of load
current. The PWR091EVM demonstrates the TPS40422 in a typical low-voltage application while providing
a number of test points to evaluate the performance of the TPS40422.
1.1
Typical Applications
•
Smart power systems
•
Power supply modules
•
Communications equipment
•
Computing equipment
1.2
Features
•
Regulated 1.2-V output up to 20-Adc, steady-state output current
•
Regulated 3.3-V output up to 15-Adc, steady-state output current
•
Both outputs are marginable and trimmable via the PMBus interface.
–
Programmable: UVLO, Soft Start, and Enable via the PMBus interface
–
Programmable overcurrent warning and fault limits and programmable response to faults via the
PMBus interface
PMBus interface
–
Programmable overvoltage warning and fault limit and programmable response to faults via the
PMBus interface
PMBus interface
–
Programmable high- and low-output margin voltages with a maximum range of +10%,
–
20% of
nominal output voltage
•
Convenient test points for probing critical waveforms
7
SLVU638
–
January 2012
Using the PWR091EVM Dual-Output DC/DC Analog With PMBus Interface
Copyright
©
2012, Texas Instruments Incorporated