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TPS40070PWP Datasheet

  • TPS40070PWP

  • HIGH-EFFICIANCY MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER W...

  • 20頁

  • TI

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TPS40070
TPS40071
SLUS582D 鈥?DECEMBER 2003 鈥?REVISED NOVEMBER 2004
HIGH-EFFICIANCY MIDRANGE INPUT SYNCHRONOUS
BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
FEATURES
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Operation Over 4.5-V to 28-V Input Range
Programmable Fixed-Frequency up to 1-MHz
Voltage-Mode Controller
Predictive Gate Drive鈩?With Anti-Cross
Conduction Circuitry
<1% Internal 700-mV Reference
Internal Gate Drive Outputs for High-Side and
Synchronous N-Channel MOSFETs
16-Pin PowerPAD鈩?Package
Thermal Shutdown Protection
TPS40070: Source Only
TPS40071: Source/Sink
Programmable High-Side Sense Short Circuit
Protection
DESCRIPTION
The TPS4007x is a mid voltage, wide input (4.5 V to
28 V), synchronous, step-down converter.
The TPS4007x offers design flexibility with a variety
of user programmable functions, including; soft-start,
UVLO, operating frequency, voltage feed-forward and
high-side FET sensed short circuit protection.
The TPS4007x incorporates MOSFET gate drivers for
external N-channel high-side and synchronous recti-
fier (SR) MOSFETs. Gate drive logic incorporates
predictive anti-cross conduction circuitry to prevent
simultaneous high-side and synchronous rectifier
conduction, while minimizing to eliminating current
flow in the body diode of the SR FET. The TPS40071
allows the supply output to sink current at all times.
The TPS40070 implements a source-only power
supply.
APPLICATIONS
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Power Modules
Networking/Telecom
Industrial
Servers
SIMPLIFIED APPLICATION DIAGRAM
TPS40070PWP
V
DD
1
2
3
4
V
OUT
Powergood
5
6
7
8
KFF
RT
LVBP
PGD
SGND
SS
FB
COMP
ILIM 16
VDD 15
BOOST
HDRV
SW
DBP
LDRV
PGND
14
13
12
11
10
9
V
OUT
V
DD
VDG鈭?3170
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.
Predictive Gate Drive, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2003鈥?004, Texas Instruments Incorporated

TPS40070PWP 產品屬性

  • 90

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 1

  • 1MHz

  • 93%

  • 4.5 V ~ 28 V

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • -40°C ~ 85°C

  • 16-TSSOP（0.173"，4.40mm）裸露焊盤

  • 管件

  • 296-16773

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