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| 型号： | TPS40077PWPRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, HTSSOP-16 |
| 文件页数： | 1/43页 |
| 文件大小： | 847K |
| 代理商： | TPS40077PWPRG4 |
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1
FEATURES
CONTENTS
DESCRIPTION
APPLICATIONS
SIMPLIFIED APPLICATION DIAGRAM
5
13
12
16
15
1
2
3
KFF
RT
LVPB
SGND
VDD
HDRV
SW
DBP
4
PGD
11
ILIM
TPS40077PWP
6
SS
7
FB
8
COMP
14
BOOST
LDRV
10
PGND
9
V
OUT
Powergood
VDD
V
OUT
UDG-09041
www.ti.com ..................................................................................................................................................... SLUS714D – JANUARY 2007 – REVISED APRIL 2009
HIGH-EFFICIENCY, MIDRANGE-INPUT, SYNCHRONOUS
BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
23
Operation Over 4.5-V to 28-V Input Range
Device Ratings. . . . . . . . . . . . . . . . . . . . . . . .
2
Programmable, Fixed-Frequency, up to 1-MHz,
Voltage-Mode Controller
Electrical Characteristics. . . . . . . . . . . . . . . . .
4
Predictive Gate Drive Anti-Cross-Conduction
Terminal Information. . . . . . . . . . . . . . . . . . . .
11
Circuitry
Application Information. . . . . . . . . . . . . . . . . .
14
<1% Internal 700-mV Reference
Example Applications. . . . . . . . . . . . . . . . . . .
23
Internal Gate Drive Outputs for High-Side and
References. . . . . . . . . . . . . . . . . . . . . . . . . . .
36
Synchronous N-Channel MOSFETs
16-Pin PowerPAD Package
Thermal Shutdown Protection
The TPS40077 is a midvoltage, wide-input (4.5-V to
Pre-Bias Compatible
28-V), synchronous, step-down controller, offering
Power-Stage Shutdown Capability
design flexibility for a variety of user-programmable
Programmable High-Side Sense Short-Circuit
functions,
including
soft
start,
UVLO,
operating
Protection
frequency,
voltage
feed-forward,
and
high-side,
FET-sensed, short-circuit protection.
Power Modules
Networking/Telecom
PCI Express
Industrial
Servers
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
Predictive Gate Drive, PowerPAD are trademarks of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2007–2009, 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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