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TPS40061 Datasheet

  • TPS40061

  • WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

  • 26頁

  • TI

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TPS40060
TPS40061
SLUS543D 鈥?DECEMBER 2002 鈥?REVISED SEPTEMBER 2004
WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
FEATURES
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Operating Input Voltage 10 V to 55 V
Input Voltage Feed-Forward Compensation
< 1% Internal 0.7-V Reference
Programmable Fixed-Frequency, Up to 1-MHz
Voltage Mode Controller
Internal Gate Drive Outputs for High-Side
P-Channel and Synchronous N-Channel
MOSFETs
16-Pin PowerPAD鈩?Package (胃
JC
= 2擄C/W)
Thermal Shutdown
Externally Synchronizable
Programmable High-Side Sense Short Circuit
Protection
Programmable Closed-Loop Soft-Start
TPS40060 Source Only/TPS40061 Source/Sink
DESCRIPTION
The TPS40060 and TPS40061 are high-voltage, wide
input (10 V to 55 V) synchronous, step-down con-
verters.
This family of devices offers design flexibility with a
variety of user programmable functions, including;
soft-start, UVLO, operating frequency, voltage
feed-forward, high-side current limit, and loop com-
pensation. These devices are also synchronizable to
an external supply.
The TPS40060 and TPS40061 incorporate MOSFET
gate drivers for external P-channel high-side and
N-channel synchronous rectifier (SR) MOSFETs.
Gate drive logic incorporates anti-cross conduction
circuitry to prevent simultaneous high-side and
synchronous rectifier conduction.
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APPLICATIONS
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Networking Equipment
Telecom Equipment
Base Stations
Servers
SIMPLIFIED APPLICATION DIAGRAM
TPS40060PWP
KFF
ILIM
RT
BP5
SYNC
SGND
SS/SD
VFB
COMP
VIN
HDRV
BPN10
SW
BP10
LDRV
PGND
1
V
IN
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
-
UDG-02157
+
V
OUT
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.
PowerPAD is a trademark 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 2002鈥?004, Texas Instruments Incorporated

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