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TPS40303, TPS40...
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Technical Documents
Tools & Software
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Reference Design
TPS40303, TPS40304, TPS40305
SLUS964D – NOVEMBER 2009 – REVISED MARCH 2018
TPS4030x 3-V to 20-V Input,
Voltage Mode, Synchronous Buck Controller
1 Features
1 Input
Voltage Range From 3 V to 20 V 300-kHz (TPS40303), 600-kHz (TPS40304), and
1.2-MHz (TPS40305) Switching Frequencies High- and Low-Side FET RDS(on) Current Sensing Programmable Thermally Compensated OCP
Levels Programmable Soft Start 600-mV, 1% Reference
Voltage Voltage Feed-Forward Compensation Supports Prebiased Output Frequency Spread Spectrum Thermal Shutdown Protection at 145°C 10-Pin 3-mm × 3-mm VSON Package With
Ground Connection to Thermal Pad Create a Custom Design Using the TPS4030x
With the WEBENCH® Power Designer
2 Applications
POL Modules Printers Digital TVs Telecom USB Type-C Wall Receptacles
3 Description
The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a
voltage-mode control architecture with input-
voltage feed-forward compensation that responds instantly to a change in input
voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.
The frequency spread-spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.
The TPS4030x offers design with a variety of userprogramm...