Texas Instruments TPS54073 Data Sheet
Summary
The TPS54073 is a highly efficient synchronous buck converter engineered for reliable Point of Load (PoL) regulation in modern digital power architectures. This integrated solution combines multiple switching and control features into a compact design, simplifying complex high-density power supply requirements. The manual provides comprehensive specifications covering adjustable output voltage, fast start-up sequencing, and sophisticated protection mechanisms. It is essential reading for electronics engineers designing demanding broadband, networking, or optical communication infrastructure that uses ASICs, FPGAs, and DSPs requiring robust, high-performance power delivery.
Page 1 Text Content
查询TPS54073PWPR供应商
Typical Size 6,4 mm X 9,7 mm
TPS54073
www.ti.com
SLVS547–FEBRUARY
2.2 -V, 14-A SYNCHRONOUS BUCK CONVERTER
WITH DISABLED SINKING DURING START-UP
FEATURES DESCRIPTION
8-mΩ MOSFET Switches for High Efficiency at
As member of the SWIFT™family of dc/dc regu-
14.5-A Peak Output Current lators, the TPS54073 low-input voltage high-output
Separate Low-Voltage Power Bus current synchronous buck PWM converter integrates•
all required active components. Included on the•
Disabled Current Sinking During Start-Up
substrate with the listed features are true, high
Adjustable Output Voltage Down to 0.9
performance, voltage error amplifier that enables
Wide PWM Frequency: Fixed k Hz, k Hz maximum performance and flexibility in choosing the•
output filter and components; anor
Adjustable k Hz to k Hz
undervoltage-lockout circuit to prevent start-up until•
Synchronizable to k Hz
the input voltage reaches V; an internally or
Load Protected by Peak Current Limit and
externally set slow-start circuit to limit in-rush
Thermal Shutdown currents; and power good output useful for
processor/logic reset, fault signaling, and supply se-•
Integrated Solution Reduces Board Area and
quencing.Total
For reliable power up in output precharge appli-
APPLICATIONS cations, the TPS54073 is designed to only source
Low-Voltage, High-Density Distributed Power current during start-up.•
Systems
The TPS54073 is available in thermally enhanced
Point of Load Regulation for High-
28-pin TSSOP (PWP) Power PAD™ package, which
Performance DSPs, FPGAs, ASICs, and
eliminates bulky heatsinks. TI provides evaluation
/d iv
Microprocessors
modules and the SWIFT™ designer software tool to
Broadband, Networking, and Optical aid in quickly achieving high-performance power•
Infrastructure supply designs to meet aggressive equipment devel-Communications
opment cycles•
Power PC Series Processors
START-UP WAVEFORM
TYPICAL APPLICATION
WITH 3 PRECHARGE DIODES
Voltage
Input 1 Output VI/O = 3.3 V
PVIN PH TPS54073
Voltage Input 2 PGND
VSENSE
VBIAS
COMPAGND
= 1.5 V(core)
t - Time - 5 ms/div
Optional
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.
SWIFT, Power PAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Copyright 2005, 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.
Page Summary Contents For Texas Instruments TPS54073 Data Sheet
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 24 |
| File Size | 1.54 MB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What features make this synchronous buck converter integrated?
It integrates a low-voltage power bus, adjustable voltage down to 0.9V, and slow-start circuits.
How should I handle the device to avoid electrostatic damage?
Since it has limited built-in ESD protection, ensure the leads are shorted or store it in conductive foam.
Does the packaging help reduce board size and weight?
Yes, it uses a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package to eliminate bulky heatsinks.