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