SI9135_11 Datasheet, PDF (4/16 Pages) Vishay Siliconix – SMBus Multi-Output Power-Supply Controller

Si9135
Vishay Siliconix
PIN CONFIGURATION
SSOP-28
CS₃ 1
FBFY 2
BSTFY 3
DHFY 4
LXFY 5
DLFY 6
CSP 7
CSN 8
GND 9
COMP 10
REF 11
SYNC 12
SCL 12
SDA 14
28 FB3
27 DH3
26 LX3
25 BST3
24 DL3
23 VIN
22 VL
21 FB5
20 PGND
19 DL5
18 BST5
17 LX5
16 DH5
15 CS5
ORDERING INFORMATION
Part Number
Si9135LG
Si9135LG-T1
Lead (Pb)-free
Part Number
Si9135LG-T1-E3
Temperature
Range
V_OUT
0 to 90 °C 3.3 V, 5 V, 12 V
Top View
PIN DESCRIPTION
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Symbol
CS₃
FBFY
BSTFY
DHFY
LXFY
DLFY
CSP
CSN
GND
COMP
REF
SYNC
SCL
SDA
CS₅
DH5
LX₅
BST₅
DL₅
PGND
FB₅
V_L
V_IN
DL₃
BST₃
LX₃
DH₃
FB₃
Description
Current sense input for 3.3 V buck.
Feedback for flyback.
Boost capacitor connection for flyback converter.
Gate-drive output for flyback high-side MOSFET.
Inductor connection for flyback converter.
Gate-drive output for flyback low-side MOSFET.
Current sense positive input for flyback converter.
Current sense negative input for flyback converter.
Analog ground.
Flyback compensation connection, if required.
3.3 V internal reference.
Oscillator synchronization inputs.
SMBUS clock line.
SMBUS data line.
Current sense input for 5 V buck controller.
Inductor connection for buck 5 V.
Gate-drive output for 5 V buck high-side MOSFET.
Boost capacitor connection for 5 V buck converter.
Gate-drive output for 5 V buck low-side MOSFET.
Power ground.
Feedback for 5 V buck.
5 V logic supply voltage for internal circuitry.
Input voltage
Gate-drive output for 3.3 V buck low-side MOSFET.
Boost capacitor connection for 3.3 V buck converter.
Inductor connection for 3.3 V buck low-side MOSFET.
Gate-drive output for 3.3 V buck high-side MOSFET.
Feedback for 3.3 V buck.
www.vishay.com
Document Number: 70817
4
S11-0975-Rev. D, 16-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000