Rev 1.1

vicorpower.com

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05/2016

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PI3302-03

Pin Description

Pin Number

Pin Name

Description

SGND

Block 1

returns. SGND and PGND are star connected within the regulator package.

PGND

Block 2

Block 3

Input voltage: and sense for UVLO, OVLO and feed forward ramp.

Block 5

Output voltage: and sense for power switches and feed-forward ramp.

VS1

Block 4

Switching node: and ZVS sense for power switches.

PGD

A1

Power Good: High impedance when regulator is operating and VOUT is in regulation. May also be used

as “Parallel Good” – see applications section.

EAO

A2

Error amp output: External connection for additional compensation and current sharing.

EN

A3

Enable Input: Regulator enable control. Asserted high or left floating – regulator enabled;

REM

A5

Remote Sense: High side connection. Connect to output regulation point.

ADJ

B1

output voltage up or down.

TRK

C1

Soft-start and track input: An external capacitor may be connected between TRK pin and SGND to

decrease the rate of rise during soft-start.

NC

K3, A4

No Connect: Leave pins floating.

SYNCO

K4

Synchronization output: Outputs a low signal for ½ of the minimum period for synchronization of other

converters.

SYNCI

K5

Synchronization input: Synchronize to the falling edge of external clock frequency. SYNCI is a high

impedance digital input node and should always be connected to SGND when not in use.

SDA

D1

SCL

E1

ADR1

H1

Package Pin-Out

PGD

VS1

Block 4

VIN

Block 3

PGND

Block 2

SGND

ADJ

TRK

SDA

SCL

ADR0

ADR1

K

J

H

G

F

E

D

C

B

A

13

12

5

4

3

1

14

210

9

8

7

611

SGND

Block 1

VOUT

Block 5

Block 1:

B2-4, C2-4, D2-3, E2-3, F1-3, G2-3, H2-3, J1-3, K1-2

Block 2:

A8-10, B8-10, C8-10, D8-10, E4-10,

F4-10, G4-10, H4-10, J4-10, K6-10

Block 3:

G12-14, H12-14, J12-14, K12-14

Block 4:

A12-14, B12-14, C12-14, D12-14, E12-14

Block 5:

A6-7, B6-7, C6-7, D6-7