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reference designRTQ2812A | Demoboard DSQ2812A-00

Richtek RTQ2812A | Demoboard DSQ2812A-00

12A, 17V, ACOT® High-Efficiency Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage2.7-17 V
Output 15.5 V / 12 A
IC revision1

Description

The RTQ2812A is a high-performance, synchronous buck converter that can deliver up to 12A output current with a wide input supply voltage range from 3.5V to 17V. The device integrates low RDSON power MOSFETs, an accurate 0.6V 1% reference over the full operating junction temperature range, and an integrated diode for the bootstrap circuit, offering a very compact solution.

Features

  • Wide Input Voltage Range
  • 2.7V to 17V with External 3.3V VCC Bias
  • 3.5V to 17V with Internal VCC Bias
  • Output Voltage from 0.6V to 5.5V
  • 0.6V  0.5% Voltage Reference from 0C to 70 C Junction Temperature Range
  • 0.6V  1% Voltage Reference from −40C to 150 C Junction Temperature Range
  • ACOT® Control for Excellent Transient Performance
  • Stable with Ceramic Output Capacitors
  • Selectable FCCM or PSM Operation at Light Load
  • Selectable Operation Switching Frequency (600KHz/800KHz/1MHz)
  • Non-Latch for OCP, UVP, UVLO, and OTP Faults. Latch-Off for OVP
  • Differential Remote Sense Voltage for High Output Accuracy
  • Power-Good Indicator
  • Enable Control
  • Programmable Soft-Start Time with a Default of 1ms
  • Programmable Valley Current Limit Level
  • Monotonic Start-Up into Pre-Biased Outputs
  • Output Voltage Tracking
  • Small 21T-Lead WQFN (3x4) (FC) Package

Typical applications

  • Point of Load (POL) Power Modules
  • High Density DC-DC Converters
  • Servers, Storage and Network Equipment, Telecom Infrastructure

More information

Products

Order Code Data­sheet Downloads Status Product series Samples
744314047–
 – Active i| Production is active. Expected lifetime: >10 years.WE-HCI SMT Flat Wire High Current Inductor
744325120–
 – Active i| Production is active. Expected lifetime: >10 years.WE-HCI SMT Flat Wire High Current Inductor
74439358010–
 – Active i| Production is active. Expected lifetime: >10 years.WE-XHMI SMT Power Inductor
74439358015–
 – Active i| Production is active. Expected lifetime: >10 years.WE-XHMI SMT Power Inductor
744393580068–
 – Active i| Production is active. Expected lifetime: >10 years.WE-XHMI SMT Power Inductor
Order Code Data­sheet
744314047–
744325120–
74439358010–
74439358015–
744393580068–
Samples
Order Code Data­sheet Downloads Status Product series Samples
Online Evaluations