參數(shù)資料
型號(hào)： TPS40051EVM-001
廠商： Texas Instruments, Inc.
英文描述： TPS40051 Evaluation Module(TPS40051評(píng)估板)
中文描述： TPS40051評(píng)估模塊（TPS40051評(píng)估板）
文件頁(yè)數(shù)： 4/17頁(yè)
文件大?。?/td> 383K
代理商： TPS40051EVM-001
SLUU161
–
April, 2003
4
TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195)
TPS40051-Based Design Converts 12-V Bus to
1.8 V at 15 A (SLUP195)
Mark Dennis
System Power
Contents
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Introduction
Features
Schematic
Component Selection
Test Setup
Test Results and Performance Data
EVM Assembly Drawing and PCB Layout
List of Materials
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References
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1
Introduction
In many modern electronic applications there is a growing demand for circuits to convert a12-V bus to digital
voltages as low as, but not limited to 1.8 V. The current requirements can range from below 1 A to over 15 A.
For high-efficiency and small circuit size the TPS40051 wide-input synchronous buck controller can be used
to provide the necessary control and drive functions to implement these converters. The TPS40051EVM
–
001
operates at 300 kHz and delivers 1.8 V at 15 A with efficiency over 90% for much of the load range, and a full
load efficiency of 88%.
The TPS40051 synchronous buck controller offers a variety of user programmable functions such as operating
frequency, soft-start time, voltage feed-forward, high-side current limit, and external loop compensation. This
controller also provides a regulated 10-V bias voltage which supplies onboard drivers for the N-channel switch
and synchronous rectifier MOSFETs, utilizing adaptive gate drive logic to prevent cross conduction of the power
MOSFETs.
[1]
2
Features
The specification of this design is as follows:
92% peak efficiency at 6 A
88% peak efficiency at 15 A
1.8V output at 15 A
V
IN
range from 10 V
DC
to 14 V
DC
Small circuit size 1.4
”
x 2.5
”
SMT design, components on single side
Line/load regulation < 0.5%
High-frequency 300-kHz operation
Transient deviation 60 mV with 10-A load step
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40051EVM-002 制造商:Texas Instruments 功能描述:TPS40051EVM-002 - Bulk
TPS40051PWP 功能描述:DC/DC 開(kāi)關(guān)控制器 WIDE INPUT VOLTAGE SYNC BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
TPS40051PWP 制造商:Texas Instruments 功能描述:IC SYNCHRONOUS BUCK CONTROL 40051
TPS40051PWPG4 功能描述:DC/DC 開(kāi)關(guān)控制器 Wide Input Vltg Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
TPS40051PWPR 功能描述:DC/DC 開(kāi)關(guān)控制器 Wide Input Vltg Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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