MPQ4480集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

DESCRIPTION

The MPQ4480 is a high-frequency,

synchronous rectified, step-down, switch-mode

converter. It achieves 6A output current over a

wide input-supply range with excellent load and

line regulation over a wide input supply range.

The MPQ4480 has synchronous mode

operation for higher efficiency over the output

load range.

Fault condition protection includes hiccup

current limiting, OVP, and thermal shutdown

(TSD).

The MPQ4480 requires a minimal number of

readily available, standard external components.

The MPQ4480 is available in a QFN-25

(4mmx5mm) package.

FEATURES

 4.2V to 36V Operating Input Voltage

Range

 6A Output Current

 Internal Auto EN Pull-Up

 20mΩ/15mΩ Low RDS(ON) Internal Buck

Power MOSFETs

 Integrated 4mΩ Ground Sensing Resistor

 Frequency Adjustable (235kHz to 2.2MHz)

 CC Output Current Limit, 3-Level

Adjustable, 2.75A/3.75A/7.5A

 Forced PWM Mode

 Frequency SYNC from 300kHz to 2.1MHz

 (Recommend: <25 of SYNC Duty Cycle)

 Spread Spectrum Option with 450kHz fSW

 EN Shutdown Discharge

 Low Dropout Mode

 Battery Short to Ground Protect Driver

 Output Over-Voltage Protection

 Adjustable Line Drop Compensation

 Support 1V to 20V Output Adjustable

 Available in a QFN-25 (4mmx5mm)

Package with Wettable Flanks

 Available in AEC-Q100 Grade 1

APPLICATIONS

 Automotive Infotainment System

 Automotive USB Hub

 Wireless Charging