MP86934 – 16V INTELLI-PHASE SOLUTION IN TQFN 3X4

MP86934 Rev.1.2

www.MonolithicPower.com

9

5/26/2021

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PIN FUNCTIONS

Pin #

Name

Description

1,14

VIN

Supply Voltage. Place CIN close to the device to support the switching current

reducing the voltage spikes at the input.

2,3,4

SW

Switch Output.

5-13

PGND

Power Ground. Place multiple Vias to inner solid ground layers to minimize the

parasitic impedance and thermal resistance.

15

PWM

Pulse Width Modulation input. Leave PWM floating or drive to mid-state to enable

the diode emulation mode.

16

SYNC

Diode emulation mode and standby mode selection. Leave it floating or drive to

middle-state to enter standby mode. Pull pin high for normal operation. Pull pin low

to enable the diode emulation mode.

17

VTEMP/FLT

Single pin temperature sense and fault reporting.

18

CS

Current Sense Output.

19

AGND

Analog Ground. Connect it to PGND plane at the VCC decoupling capacitor.

20

VCC

3.3V supply input for internal circuitry and gate drive, decouple with 1µF (or higher)

ceramic capacitor to AGND.

21

BST

Bootstrap. Requires a 0.1µF to 1µF capacitor to drive the power switch’s gate above

the supply voltage. Connects the capacitor between SW and BST pins to form a

floating supply across the power switch driver.