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MPQ4272-AEC1

36V, 3A Dual Buck Converter with I2C Interface for Automotive Power Delivery, AEC-Q100

Pre-Release

Description

The MPQ4272 integrates dual channel monolithic step-down converters with I2C interface. Each channel can deliver 3A output current over a wide input-supply range with excellent load and line regulation.

The MPQ4272 is designed for dual ports USB charger application. Both channels can work well with external USB PD controller.

I2C interface and OTP provide flexibility of programmable features.

Fault condition protection includes current limiting, output OVP, and thermal shutdown (TSD).

The MPQ4272 requires a minimum number of readily available, standard, external components. The MPQ4272 is available in a QFN-21 (4mmx5mm) package.

Features & Benefits

Dual 3A or Shared 6A Buck Converter
Support USB PD3.0
Wide 4V to 36V Operating Input-Voltage Range
1V to 21V Output-Voltage Range with 12.6mV resolution, VOUT Scale Loop=0.0635
250kHz/420kHz/1.1MHz/2.1MHz Selectable Switching Frequency
Frequency Spread Spectrum
Low Dropout Mode
Line Drop Compensation
Accurate adjustable CC Output-Current Limit 50mA/step via I2C
22mΩ High-side/26mΩ Low-side Low R_DS(ON) Internal Buck Power MOSFETs
I2C Interface and OTP (PMBus compatible):
PFM/PWM Mode, Current Limit, Output Voltage, Frequency Spread Spectrum, Phase Delay, Line Drop Compensation, etc.
V_BUS Isolation NMOS Gate Driver
Battery Short to Ground Protection
Load Shedding Alert
EN Shutdown Active Discharge
Available in a QFN-21 (4mmx5mm) Package with Wettable Flanks
Available in AEC-Q100 Grade