Richtek RT6255AHGJ6F Datasheet & Stock

The RT6255AHGJ6F from Richtek is a high efficiency, monolithic synchronous step down ACOT DC to DC converter in 6 pin TSOT-23 package. The delivers up to 5A output current from 4.5V to 18V input supply. The RT6255A adopts ACOT architecture to allow the transient response to be improved and keep in constant frequency. Cycle by cycle current limit provides protection against shorted outputs and soft start eliminates input current surge during start-up. Fault conditions also include output under voltage protection and thermal shutdown. The shutdown current of 3μA at VEN = 0, quiescent current of 115μA at IOUT = 0 and soft-start time of 1.5ms.




PSM/PWM operations

Constant-on-time mode to enables fast transient response

Low output ripple and allows ceramic output capacitor

500KHz switching frequency and 0.6V to 5V adjustable output voltage

High efficient internal power MOSFET switch optimized for lower duty cycle applications

Integrated 45mohm/25mohm MOSFETs, UVP trip threshold of 60% (UVP detect), 10% (hysteresis)

Internal soft start (1.5ms typical) and built-in UVP/OTP

Power good indicator (90%), input under voltage lockout and hicc-up mode for UVP

Overtemperature protection, shutdown, start-up and enable (EN) function

Ambient temperature range from -40°C to 85°C





Applications


Power Management,

Consumer Electronics,

Portable Devices





Warnings
ESD sensitive device. Handling precautions are recommended.