TPS54320RHLR Description

The TPS54320is a fullfeatured 17-V,3-Asynchronous step-down converter which is optimizedforsmall  designs through highefficieney andintegrated high-side and low-side MOSFETs. Furtherspace savings are achieved through current modecontrol，which reduces component count. and byselecting a highswitching frequency,reducing theinductor's footprint.

The output voltage startup ramp is controlled by thesS/TR pin which allows operation as either a standalone power supply or in tracking situations. Powersequencing is also possible by correctly configuringthe enable and the open drain power good pins.

TPS54320RHLR Features

lntegrated 57-mQ / 50-mQ MOSFETs

Split Power Rail: 1.6 to 17 V on PVIN

200-kHz to 1.2-MHz Switching Frequency

Synchronizes to External Clock

0.8-v Voltage Reference 

Low 2-uA Shutdown Quiescent Current

Hiccup Overcurrent Protection

Monotonic Start-Up into Prebiased Outputs

40*C to 150"C Operating Junction Temperature

Range

Pin-to-Pin Compatible With the TPS54620

Adjustable Slow Start/Power Sequencing

Power Good Output for Undervoltage and

Overvoltage Monitoring

Adjustable Input Undervoltage Lockout (UVLo)

Supported by SwitcherPro TM Software Tool

For swIFTTMDocumentation and SwitcherPro

TPS54320RHLR Applications

Broadband, Networking, and Communication

lnfrastructure

Automated Test and Medical Equipment

DSPand FPGA Point-of-Load Applications from

12-V Bus