Design contains obsolete parts

EVB_RT8279GSP: 2.4V @ 5A, 5.5 ~ 36Vin

Summary

The EVB_RT8279GSP is a step-down regulator with an internal power MOSFET. It achieves 5A of continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. For protection, the RT8279 provides cycle-by-cycle current limiting and thermal shutdown protection. An adjustable soft-start reduces the stress on the input source at start up. In shutdown mode, the regulator draws only 25µA of supply current. The RT8279 requires a minimum number of readily available external components, providing a compact solution. The RT8279 is available in the SOP-8 (Exposed Pad) package.

Product Features

Internal Soft-Start
110mΩ Internal Power MOSFET Switch
Internal Compensation Minimizes External Parts Count
High Efficiency up to 90%
25µA Shutdown Mode

Specifications

Manufacturer	Richtek USA Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	EVB_RT8279GSP-ND
Eval Board Supplier	Richtek USA Inc.
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	2.4 V
Current Out	5 A
Voltage In	5.5 ~ 36 V
Efficiency @ Conditions	>90%, 12V in, 5V @ 0.2 ~ 3 A >85%, 36V in, 5V @ 0.5 ~ 5 A
Voltage Out Range	1.222 ~ 26V
Features	Current Limit (Adj. or Fixed) Over Current Protection Shutdown, Enable, Standby Soft Start Thermal Protection
Switching Frequency	500 kHz
Standby Current [Typical]	25 µA
Quiescent Current [Typical]	600 µA
Component Count + Extras	14 + 9
Internal Switch	Yes
Design Author	Richtek USA Inc.
Application / Target Market	Battery Chargers Point of Load (PoL) Power: Industrial Power
Standby Current [Maximum]	45 µA
Quiescent Current [Maximum]	1 mA
Main I.C. Base Part	RT8279
Date Created By Author	2015-06
Date Added To Library	2018-12