DESCRIPTION

The MP4245 is a buck-boost converter with four

integrated power switches. The device can

deliver up to 6A of output current at certain inputvoltage supply ranges, with excellent load and

line regulation.

The MP4245 is suitable for USB power delivery

(USB PD) applications. It can work with an

external USB PD controller through the I

2C

interface. The I2C interface and two-time

programmable multiple-time programmable

(MTP) memory provide flexible features.

Fault condition protections includes constant

current (CC) limiting, output over-voltage

protection (OVP), and thermal shutdown (TSD).

The MP4245 requires a minimal number of

readily available, standard external components,

and is available in a QFN-21 (4mmx5mm)

package.

FEATURES

• Supports 60W Buck-Boost or 6A Peak IOUT

• Wide 4V to 36V Operating Input Voltage

Range

• 1V to 23V Output Voltage Range

• 250kHz, 350kHz, or 420kHz Selectable

Frequency or SYNC Input

• 12mΩ/24mΩ/14mΩ/14mΩ Low RDS(ON) for

Switches A, B, C, and D

• Selectable Frequency Spread Spectrum

• Line Drop Compensation

• Accurate Constant Current (CC) Output

Current Limit

• I2C Interface and MTP (PMBus

Compatible):

o PFM/PWM Mode, Current Limit, Output

Voltage, Frequency Spread Spectrum,

and Line Drop Compnsation

o CRC Calculation for MTP Integrity

• Load-Shedding Alert

• EN Shutdown Active Discharge

• Available in a QFN-21 (4mmx5mm)

Package with Wettable Flanks

APPLICATIONS

• USB Type-C with PD Charging Only Ports

• 12V Bus Voltage Supplies

• Wireless Charging