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TPS40100RGER Datasheet

  • TPS40100RGER

  • MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH ADVANCED SEQ...

  • 36頁

  • TI

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TPS40100
www.ti.com
SLUS601 鈥?MAY 2005
MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER
WITH ADVANCED SEQUENCING AND OUTPUT MARGINING
FEATURES
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Operation over 4.5 V to 18 V Input Range
Adjustable Frequency (Between 100 kHz and
600 kHz) Current Feedback Control
Output Voltage Range From 0.7 V to 5.5 V
Simultaneous, Ratiometric and Sequential
Startup Sequencing
Adaptive Gate Drive
Remote Sensing (Via Separate GND/PGND)
Internal Gate Drivers for N-channel MOSFETs
Internal 5-V Regulator
24-Pin QFN Package
Thermal Shutdown
Programmable Overcurrent Protection
Power Good Indicator
1%, 690-mV Reference
Output Margining, 3% and 5%
Programmable UVLO (with Programmable
Hysteresis)
Frequency Synchronization
APPLICATIONS
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Servers
Networking Equipment
Cable Modems and Routers
XDSL Modems and Routers
Set-Top Boxes
Telecommunications Equipment
Power Supply Modules
DESCRIPTION
The TPS40100 is a mid voltage, wide-input (between
4.5 V and 18 V), synchronous, step-down controller.
The TPS40100 offers programmable closed loop
soft-start, programmable UVLO (with programmable
hysteresis), programmable inductor sensed current
limit and can be synchronized to other timebases.
The TPS40100 incorporates MOSFET gate drivers
for external N-channel high-side and synchronous
rectifier (SR) MOSFET. Gate drive logic incorporates
adaptive anti-cross conduction circuitry for improved
efficiency, reducing both cross conduction and diode
conduction in the rectifier MOSFET. The externally
programmable current limit provides a hiccup
overcurrent recovery characteristic.
TYPICAL APPLICATION
24
MGU
1
2
3
V
IN
V
TRKIN
4
5
6
COMP
FB
TRKOUT
TRKIN
23
MGD
22
SYNC
21
PG
20
VO
19
ISNS
VDD 18
SW 17
V
IN
TPS40100
HDRV 16
BST 15
PGND
12
5VBP 14
LDRV 13
UVLO
BIAS
GND
ILIM
GM
11
SS
10
RT
7
8
9
UDG鈭?4137
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.
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 2005, Texas Instruments Incorporated

TPS40100RGER 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電流模式

  • 1

  • 600kHz

  • 85%

  • 4.5 V ~ 18 V

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • -40°C ~ 85°C

  • 24-VFQFN 裸露焊盤

  • Digi-Reel®

  • 296-34770-6

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