1 Features

1• Single chip to support Intel VR13.HC SVID POL

applications

• Two outputs to support VCCANA (5.5 A) and

P1V8 (4 A)

• D-CAP+™ Control for Fast Transient Response

• Wide Input Voltage (4.5 V to 15 V)

• Differential Remote Sense

• Programmable Internal Loop Compensation

• Per-Phase Cycle-by-Cycle Current Limit

• Programmable Frequency from 800 kHz to 2 MHz

• I2C System Interface for Telemetry of Voltage,

Current, Output Power, Temperature, and Fault

Conditions

• Over-Current, Over-Voltage, Over-Temperature

protections

• Low Quiescent Current

• 5 mm × 5 mm, 35-Pin QFN, PowerPAD Package

2 Applications

• Low Current SVID Rails for Intel Server Platforms

3 Description

The TPS53820 device is D-CAP+ mode integrated

step-down converter for low current SVID rails of Intel

CPU power supply. It provides up to two outputs to

power the low current SVID rails such as VCCANA

(5.5 A) and P1V8 (4 A). The device employs D-CAP+

mode control to provide fast load transient

performance. Internal compensation allows ease of

use and reduces external components.

The device also provides telemetry, including input

voltage, output voltage, output current and

temperature reporting. Over voltage, over current and

over temperature protections are provided as well.

The TPS53820 device is packaged in a thermally

enhanced 35-pin QFN and operates between –40°C

and 125°C.