Texas Instruments TPS40056 Data Sheet
Summary
Discover this versatile synchronous step-down converter solution designed for reliable power management in critical applications like industrial servers and networking equipment. Featuring built-in capabilities such as programmable soft-start, adjustable operating frequency, and advanced short-circuit protection, it offers high design flexibility. The accompanying manual provides engineers with comprehensive details on electrical characteristics, thermal ratings, and detailed application examples to successfully integrate this robust module into their power architectures.
Page 1 Text Content
SLVS612 − APRIL 2006
FEATURES CONTENTS Operating Input Voltage 10 V to 40 V
Device Ratings
Output Voltage Tracks External Reference Electrical Characteristics
Terminal Information
Programmable Fixed-Frequency Up to
Application Information
100 k Hz to 1 MHz Voltage Mode Controller
Design Example
Internal Gate Drive Outputs for High-Side
Additional References
and Synchronous N-Channel MOSFETs Externally Synchronizable
DESCRIPTION
Programmable Short-Circuit Protection
The TPS40056 is part of a family of high-voltage,
Thermal Shutdown
wide input, synchronous, step-down converters.
16-Pin Power PAD Package (θJC = 2°C/W)
The TPS40056 offers design flexibility with a
Programmable Closed-Loop Soft-Start variety of user programmable functions, including
soft-start, operating frequency, high-side current APPLICATIONS limit, and loop compensation. The TPS40056 is also synchronizable to an external supply. It
DDR Tracking Regulators
incorporates MOSFET gate drivers for external
Power Modules
N-channel high-side and synchronous rectifier
Networking Equipment (SR) MOSFETs. Gate drive logic incorporates
anti-cross conduction circuitry to prevent
Industrial Servers
simultaneous high-side and synchronous rectifier conduction. The externally programmable short circuit protection provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads.
SIMPLIFIED APPLICATION DIAGRAM
TPS40056PWP
SYNC ILIM
RT VIN
BP5 14BOOST
VTRKIN EA_REF HDRV
SGND SW
SS BP10
VFB LDRV
COMP PGND
UDG−03080
!" # $% &" !# '%()$!" *!"&+ Copyright 2006, Texas Instruments Incorporated *%$"# $ " #'&$ $!" # '& ",& "& # &-!# #" % &"# #"!*! * .! !"/+ *%$" ' $&##0 * &# " &$&##! )/ $)%*& "&#"0 !)) '! ! &"& #+
1www.ti.com
Page Summary Contents For Texas Instruments TPS40056 Data Sheet
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 31 |
| File Size | 769.30 KB |
| Published | June 02, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the operational input voltage range for this device?
The recommended operating input voltage (V_IN) range is 10 V to 40 V.
How does the TPS40056 handle overloads or faults?
It incorporates externally programmable short circuit protection, offering pulse-by-pulse current limit and hiccup mode operation for extended overload situations.
What precautions should be taken during handling to prevent damage?
These devices have limited built-in ESD protection; leads should be shorted together or the device stored in conductive foam.
Where must the PowerPAD heat slug be connected in a layout?
The PowerPAD heat slug must be connected to SGND (pin 5) or electrically isolated from all other pins.