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reference designRTQ2822B

Richtek RTQ2822B

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

Overview

TopologyBuck Converter
Input voltage4.5-17 V
Output 15 V / 12 A
IC revision00

Description

The RTQ2822A/B is a high-performance, synchronous step-down converter that can deliver up to 12A output current with an input supply voltage range of 4.5V to 17V. The device integrates low RDS(ON) power MOSFETs, accurate 0.6V reference and an integrated diode for bootstrap circuit to offer a very compact solution. Switching frequency is selectable in 400kHz, 800kHz and 1200 kHz.

Features

  • 4.5V to 17V Input Voltage Range
  • Integrated 9.8m/4.5mMOSFETs
  • 0.6V ±1% Voltage Reference
  • Adjustable Output Voltage from 0.6V to 5.5V
  • Supports Ceramic Output Capacitor
  • ACOTTM Control for Fast Transient Response
  • Selectable Switching Frequency (400kHz/800kHz/1200kHz)
  • Selectable Current Limit Level
  • Power Good Indicator
  • Programmable Soft-Start Time with a Default 1ms
  • Monotonic Start-Up into Pre-Biased Outputs
  • 18-Lead VQFN (FC) Package

Typical applications

  • Point of Load (POL) Power Modules / High Density DC-DC Converters
  • Server, Storage and Network Equipment / Telecom Infrastructure
  • High End Digital TV

More information

Parts approved by Richtek

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
SamplesAvailability & Sample
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744314047
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.47 µH, 31.9 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.47 µH
Performance Rated Current31.9 A
Saturation Current @ 10%9 A
Saturation Current @ 30%20 A
DC Resistance1.35 mΩ
Self Resonant Frequency235 MHz
MaterialSuperflux 
Packaging Unit1000 
–Check availability
744311068
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.68 µH, 20.9 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.68 µH
Performance Rated Current20.9 A
Saturation Current @ 10%9.5 A
Saturation Current @ 30%20 A
DC Resistance3.1 mΩ
Self Resonant Frequency105 MHz
MaterialSuperflux 
Packaging Unit1000 
–Check availability
7443552150
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 18 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.5 µH
Performance Rated Current18 A
Saturation Current @ 10%6.5 A
Saturation Current @ 30%17 A
DC Resistance5.3 mΩ
Self Resonant Frequency63 MHz
MaterialWE-PERM 
Packaging Unit800 
–Check availability
744325240
SPECWE-HCI SMT Flat Wire High Current Inductor, 2.4 µH, 18.6 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance2.4 µH
Performance Rated Current18.6 A
Saturation Current @ 10%6.9 A
Saturation Current @ 30%17 A
DC Resistance4.75 mΩ
Self Resonant Frequency67 MHz
MaterialSuperflux 
Packaging Unit700 
–Check availability