EVB_RT2856GQW: 3.3V @ 6A, 4.5 ~ 18Vin

Summary

The RT2856GQW is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 6A output current from a 4.5V to 18V input supply. The RT2856GQW current-mode architecture with externalcompensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during startup. Fault condition protections include output under-voltage protection, output over-voltage protection,and overtemperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.

Product Feature

Low RDS (ON) Power MOSFET Switches 26mΩ/19mΩ
Accurate Voltage Reference 0.8V±1%, Over -40°C to 85°C
Monotonic Start-Up into Pre-biased Outputs
Adjustable Soft-Start
Power Good Indicator
Under-Voltage and Over-Voltage Protection
Input Under-Voltage Lockout

Specifications

Manufacturer	Richtek USA Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	EVB_RT2856GQW-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	6 A
Voltage In	4.5 ~ 18 V
Efficiency @ Conditions	>95%, 9V in, 3.3V @ 1 ~ 4 A >95%, 12V in, 5V @ 1 ~ 6 A >90%, 17V in, 3.3V @ 1 ~ 6 A >90%, 12V in, 3.3V @ 0.5 ~ 6 A
Voltage Out Range	0.8 ~ 16.2 V
Features	Current Limit (Adj. or Fixed) Over Voltage Protection Power Good Output Soft Start Synchronizable Under Voltage Protection, Brown-Out
Switching Frequency	200 kHz ~ 1.6 MHz
Standby Current [Typical]	3 µA
Quiescent Current [Typical]	600 µA
Component Count + Extras	19 + 24
Internal Switch	Yes
Design Author	Richtek USA Inc.
Application / Target Market	Point of Load (PoL) Power: Industrial Power
Standby Current [Maximum]	9 µA
Quiescent Current [Maximum]	1 mA
Main I.C. Base Part	RT2856
Date Created By Author	2016-03
Date Added To Library	2021-04