EVB_RT7272AGSP: 0.8 ~ 30V @ 6A, 4.5 ~ 36Vin, Step Down

Summary

The EVB_RT7272AGSP is a high efficiency, current mode synchronous step-down DC/DC converter evaluation board that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V. The current mode control architecture supports fast transient response and uses a simple compensation circuit.

A cycle-by-cycle current limit function provides protection against a shorted output and an internal soft-start eliminates input surge current during start-up. The RT7272A provides complete protection functions such as input under voltage lockout, output under voltage protection, over current protection and thermal shutdown. The RT7272A is available in the thermal enhanced SOP-8 (Exposed Pad) package.

Specifications

Manufacturer	Richtek USA Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	EVB_RT7272AGSP-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	3.3 V
Current Out	3 A
Voltage In	4.5 ~ 36 V
Efficiency @ Conditions	>95%, 4.5V in, 3.3V @ 0.25 ~ 1 A >90%, 12V in, 3.3V @ 0.25 ~ 1.75 A >85%, 24V in, 3.3V @ 0.5 ~ 3 A >80%, 36V in, 3.3V @ 0.5 ~ 3 A
Voltage Out Range	0.8 ~ 30 V
Features	Current Limit (Adj. or Fixed) Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	500 kHz
Standby Current [Typical]	500 nA
Quiescent Current [Typical]	900 µA
Component Count + Extras	17 + 15
Internal Switch	Yes
Design Author	Richtek USA Inc.
Application / Target Market	Audio: MP3 Players Handheld games LCD TV / Monitor Point of Load (PoL) Power: Industrial Power Set-Top Boxes
Standby Current [Maximum]	3 µA
Quiescent Current [Maximum]	1.2 mA
Main I.C. Base Part	RT7272A
Date Created By Author	2015-06
Date Added To Library	2018-08