PIN

NAME

FUNCTION

25

DLFB1

External MOSFET Status Feedback Pin for the First Phase. Connect DLFB1 to the center of a resistor di-

vider between the gate of the low-side MOSFET of the first phase and GND. See the MOSFET Gate Control

section.

26

DL1

Logic Output for Low-Side MOSFET Gate Driver for the First Phase. Connect DL1 to the first phase external

MOSFET driver low-side input pin.

27

DH1

Logic Output for High-Side MOSFET Gate Driver for the First Phase. Connect DH1 to the first phase

external MOSFET driver high-side input pin.

28

CSP1

Positive Low-Side Differential Current-Sense Input for the First Phase. MAX15158/MAX15158A uses the

differential current-sense signal in the current-mode control loop, and multiphase current sharing.

Connect CSP1 to the "MOSFET side" of the current-sense resistor.

29

CSN1

Negative Low-Side Differential Current-Sense Input for the First Phase. MAX15158/MAX15158A uses

the differential current-sense signal in the current-mode control loop, and multiphase current sharing.

Connect CSN1 to the "ground side" of the current-sense resistor.

30

CSN2

Negative Low-Side Differential Current-Sense Input for the Second Phase. MAX15158/MAX15158A uses

the differential current-sense signal in the current-mode control loop, and multiphase current sharing.

Connect CSN2 to the "ground side" of the current-sense resistor.

31

CSP2

Positive Low-Side Differential Current-Sense Input for the Second Phase. MAX15158/MAX15158A uses

the differential current-sense signal in the current-mode control loop, and multiphase current sharing.

Connect CSP2 to the "MOSFET side" of the current-sense resistor.

32

DLFB2

External MOSFET Status Feedback Pin for the Second Phase. Connect DLFB2 to the center of a resistor

divider between the gate of the low-side MOSFET of the second phase and GND. See the MOSFET Gate

Control section.

Pin Description (continued)

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MAX15158/MAX15158A

High-Voltage Multiphase Boost Controller