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reference designRT6219A | Demoboard EVB_RT6219AGQW

Richtek RT6219A | Demoboard EVB_RT6219AGQW

4A, 23V, 500kHz, ACOT™ Synchronous Buck Converter

Overview

TopologyBuck Converter
Input voltage5-23 V
Output 15 V / 4 A

Description

The RT6219A is a synchronous Buck converter with Advanced Constant On-Time (ACOTTM) mode control whichprovides a very fast transient response with no external compensators. The RT6219A operates from 5V to 23V inputvoltage, provides complete protection functions including Over Current Protection (OCP), Under Voltage Protection(UVP) and Over Voltage Protection (OVP). This IC also provides a 1.5ms internal soft-start function and anopen-drain power good indicator.

Features

  • 5V to 23V Input Voltage Range
  • Adjustable from 0.6V to 5V Output Range
  • Up to 98% Duty for 2S Battery Application
  • 500kHz Switching Frequency
  • Fixed Switching Frequency: 500kHz
  • ACOT™ Mode Performs Fast Transient Response
  • Integrated MOSFETs 67mΩ of High-Side MOSFET 41mΩ of Low-Side MOSFET
  • Supports MLCC Output Capacitors
  • Internal Soft-Start (1.5ms typ)
  • Built-in OVP/UVP/OCP
  • Power Good Indicator
  • Thermal Shutdown

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 max.(mΩ)
Material
LR(µH)
fres(MHz)
SamplesAvailability & Sample
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7443340220
SPECWE-HCC SMT High Current Cube Inductor, 2.2 µH, 14.8 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
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCC SMT High Current Cube Inductor
Inductance2.2 µH
Performance Rated Current14.8 A
Saturation Current @ 10%11.3 A
Saturation Current @ 30%12.9 A
DC Resistance5.6 mΩ
MaterialFerrite 
Rated Inductance1.4 µH
Self Resonant Frequency97 MHz
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