EVB_RT6219AGQW: 5V @ 4A, 5 ~ 23Vin

Summary

The RT6219A is a synchronous Buck converter with Advanced Constant On-Time (ACOTTM) mode control which provides a very fast transient response with no external compensators. The RT6219A operates from 5V to 23V input voltage, 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 an open-drain power good indicator.

Product Feature

Adjustable from 0.6V to 5V Output Range
Up to 98% Duty for 2S Battery Application
500kHz Switching Frequency
Integrated MOSFETs 67mΩ of High-Side MOSFET, 41mΩ of Low-Side MOSFET
Supports MLCC Output Capacitors

Specifications

Manufacturer	Richtek USA Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	EVB_RT6219AGQW-ND
Eval Board Supplier	Richtek USA Inc.
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	5 V
Current Out	4 A
Voltage In	5 ~ 23 V
Efficiency @ Conditions	>95%, 7.4V in, 5V @ 0.02 ~ 4 A >90%, 7.4V in, 3.3V @ 0.005 ~ 4 A >90%, 19V in, 5V @ 0.01 ~ 4 A >90%, 19V in, 3.3V @ 0.04 ~ 4 A >90%, 12V in, 5V @ 0.007 ~ 4 A >90%, 12V in, 3.3V @ 0.01 ~ 4 A
Voltage Out Range	0.6 ~ 5 V
Features	Over Current Protection Over Voltage Protection Power Good Output Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	500 kHz
Standby Current [Typical]	2.5 µA
Quiescent Current [Typical]	100 µA
Component Count + Extras	18 + 6
Internal Switch	Yes
Design Author	Richtek USA Inc.
Application / Target Market	Battery Chargers LCD TV / Monitor Point of Load (PoL) Portable Devices Servers Tablets
Standby Current [Maximum]	5 µA
Quiescent Current [Maximum]
Main I.C. Base Part	RT6219
Date Created By Author	2015-10
Date Added To Library	2024-01