LT7200SAVPBF datasheet(6/35 Pages) AD

6 / 35 page

Data Sheet

LT7200S

analog.com

Rev 0

6 of 35

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

Figure 3. Pin Configurations

Table 3. Pin Descriptions

NAME

DESCRIPTION

PHMODE

Control Input to Phase Selector. Determines the phase relationship of the 4 channels.

Tie it to GND for 4-phase operation, tie it to INTVCC for 3-phase operation.

2, 3,12,

13, 26,

27, 36, 37

GND

Ground for Power and Signal Ground.

PVIN1

Channel 1 Power VIN . Input voltage to the on-chip Power MOSFETs.

4, 5

PVIN2

Channel 2 Power VIN . Input voltage to the on-chip Power MOSFETs.

34, 35

PVIN3

Channel 3 Power VIN . Input voltage to the on-chip Power MOSFETs.

28, 29

PVIN4

Channel 4 Power VIN . Input voltage to the on-chip Power MOSFETs.

8, 9

SW1

Channel 1 Switch Node Connection of External Inductor. Voltage swing of SW1 is from

a diode voltage drop below ground to a diode voltage above PVIN1.

6, 7

SW2

Channel 2 Switch Node Connection of External Inductor. Voltage swing of SW2 is from

a diode voltage drop below ground to a diode voltage above PVIN2.

LT7200SAVPBF Datasheet(PDF) 6 Page - Analog Devices