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Texas Instruments TPS542A52 Synchronous Buck Converter

Texas Instruments TPS542A52 Synchronous Buck Converters offer high-efficiency with differential remote sense. The TPS542A52 Converters feature fixed-frequency, voltage-control mode with pin strap selectable internal compensation for reduced system cost and complexity. The PWM can be synchronized to an external clock through the SYNC pin.

The TI TPS542A52 Synchronous Buck Converters also include other vital features like PFM for high light-load efficiency, low shutdown quiescent current draw, adjustable UVLO through the EN pin, and monotonic start-up into pre-biased conditions.

The TPS542A52 Buck Converters are lead-free in a VQFN 4.5mm × 4mm package and are fully RoHS compliant without exemption.

Features

Integrated 9.1mΩ and 2.6mΩ MOSFETs support up to 15A output current
0.5V to 5.5V output voltage range
Fixed-frequency voltage control mode with selectable internal compensation
Seven selectable frequency settings from 400kHz to 2.2MHz
Synchronizes to an external clock
Fully differential remote sense
Six selectable over-current limits, four soft-start slew rates

Monotonic start-up into pre-biased outputs
EN pin allowing for adjustable input UVLO
Power good indicator
17µA typical shutdown quiescent current draw
Selectable FCCM or PFM for light load efficiency
–40 to +150°C operating junction temperature
4mm × 4.5mm VQFN package
Create a custom design using the TPS542A52 with the WEBENCH® Power Designer

Applications

Wireless communications
Analog front end power

Test and measurement equipment
Medical imaging

Texas Instruments TPS542A52 Synchronous Buck Converter

Features

Applications

Simplified Schematic

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