DESCRIPTION

The MP2491C is a fully integrated, high-voltage,

step-down converter. The MP2491C can

achieve 6A of continuous output current with

excellent load and line regulation over a wide

input supply range.

Constant-on-time (COT) control operation

provides very fast transient response, easy loop

design, and very tight output regulation.

Full protection features include over-current

protection (OCP), hiccup current limiting, output

over-voltage protection (OVP), and thermal

shutdown.

The MP2491C requires a minimal number of

readily available, standard, external

components and is available in a QFN-13

(2.5mmx3mm) package.

FEATURES

 Wide 4.0V to 32V Operating Input Range

 0.5V to 30V Output Voltage Range

 6A Output Current

 Constant-on-Time (COT) Control

 Two Dedicate Voltage Scaling Control Pins

 Slew Rate Control during DVS

 Low Dropout Mode Operation

 33mΩ/22mΩ Internal MOSFET Switches

 450µA IQ

 Fixed 490kHz Switching Frequency

 Output Line Drop Compensation when VFB =

0.5V

 EN Shutdown Discharge

 Output Over-Voltage Protection (OVP)

 Adjustable Auto-PFM/PWM Mode or Forced

PWM Mode

 Adjustable Current Limit

 Power Good (PG) Indication

 Available in a QFN-13 (2.5mmx3mm)

Package

APPLICATIONS

 TVs, Monitors

 MFP Power Supplies

 USB Power Supplies with PD

 Automotive Cigarette Lighter Adapters