参数资料
型号: TPS40054PWPRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封装: GREEN, PLASTIC, HTSSOP-16
文件页数: 1/35页
文件大小: 866K
代理商: TPS40054PWPRG4
8
1
FEATURES
CONTENTS
DESCRIPTION
APPLICATIONS
5
13
12
16
15
1
2
3
KFF
RT
BP5
SGND
VIN
HDRV
SW
BP10
4
SYNC
11
ILIM
TPS4005xPWP
6
SS/SD
7
VFB
8
COMP
14
BOOST
LDRV 10
PGND
9
VIN
VO
+
+
UDG-03179
www.ti.com ...................................................................................................................................... SLUS593F – DECEMBER 2003 – REVISED SEPTEMBER 2008
WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
2
Operating Input Voltage 8 V to 40 V
2
Input Voltage Feed-Forward Compensation
3
< 1 % Internal 0.7-V Reference
5
Programmable Fixed-Frequency Up to 1-MHz
Voltage Mode Controller
7
Internal Gate Drive Outputs for High-Side and
23
Synchronous N-Channel MOSFETs
28
16-Pin PowerPAD Package (θ
JC = 2°C/W)
Thermal Shutdown
Externally Synchronizable
The TPS4005x is a family of high-voltage, wide input
Programmable High-Side Sense Short-Circuit
(8 V to 40 V), synchronous, step-down controllers.
Protection
The TPS4005x family offers design flexibility with a
Programmable Closed-Loop Soft-Start
variety of user-programmable functions, including
soft-start, UVLO, operating frequency, voltage feed-
TPS40054 Source Only
forward,
high-side
current
limit,
and
loop
TPS40055 Source/Sink
compensation.
TPS40057 Source/Sink With V
O Prebias
The TPS4005x uses voltage feed-forward control
techniques to provide good line regulation over the
wide (4:1) input voltage range, and fast response to
Power Modules
input line transients. Near-constant modulator gain
Networking/Telecom
with input variation eases loop compensation. The
Industrial/Servers
externally
programmable
current
limit
provides
pulse-by-pulse current limit, as well as hiccup mode
operation utilizing an internal fault counter for longer
duration overloads.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2003–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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