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TPS40051-TPS40051PWP-TPS40051PWPRG4 Fast Delivery,Good Price
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TPS40051TIN/a20avaiWide Input Voltage Synchronous Buck Controller
TPS40051PWPTIN/a47avaiQ1
TPS40051PWPRG4TIN/a70avaiWide Input Voltage Synchronous Buck Controller 16-HTSSOP -40 to 85


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TPS40051-TPS40051PWP-TPS40051PWPRG4
Wide Input Voltage Synchronous Buck Controller
FEATURES Operating Input Voltage 8 V to 40 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 and
Synchronous N-Channel MOSFETs
16-Pin PowerPAD� Package (θJC = 2°C/W) Thermal Shutdown Externally Synchronizable Programmable High-Side Current Limit Programmable Closed-Loop Soft-Start TPS40050 Source Only TPS40051 Source/Sink TPS40053 Source/Sink With VOUT Prebias
APPLICATIONS
Power Modules Networking/Telecom Industrial Servers
SIMPLIFIED APPLICATION
DESCRIPTION

The TPS4005x is a family of high-voltage, wide input
(8 V to 40 V), synchronous, step-down converters.
The TPS4005x family 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 compensation.
The TPS4005x are also synchronizable to an external
supply. They incorporate MOSFET gate drivers for
external N-channel high-side and synchronous rectifier
(SR) MOSFETs. Gate drive logic incorporates
anti-cross conduction circuitry to prevent simultaneous
high-side and synchronous rectifier conduction.
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 input line
transients with near constant gain with input variation
which eases loop compensation.
The 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.
UDG−02130
VIN
VOUT
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