SI9130 Datasheet, PDF (7/13 Pages) Vishay Siliconix – Pin-Programmable Dual Controller-Portable PCs

PIN CONFIGURATION AND DESCRIPTION
Si9130
Vishay Siliconix
CS₃ 1
SS₃ 2
ON₃ 3
NC 4
NC 5
NC 6
3.6ADJ 7
3.45ADJ 8
GND 9
REF 10
SYNC 11
SHDN 12
ON₅ 13
SS₅ 14
28 FB3
27 DH₃
26 LX₃
25 BST₃
24 DL₃
23 V+
SSOP-28 ^{22 VL}
21 FB₅
20 PGND
19 DL5
18 BST5
17 LX₅
16 DH₅
15 CS₅
Top View
Ordering Information
Standard Lead (Pb)-Free Temperature
Part Number Part Number
Range
Si9130CG
Si9130CG-T1
Si9130LG
Si9130LG-T1
Si9130CG-T1—E3
Si9130LG-T1—E3
0 to 70_C
−10 to 90_C
V_OUT
5 V and 3.3 V
3.45 V or 3.6 V
Demo Board
Si9130DB
Temperature Range
0 to 70_C
Board Type
Surface Mount
Pin
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
SS₃
ON₃
NC
NC
NC
3.6ADJ
3.45ADJ
GND
REF
SYNC
SHDN
ON₅
SS₅
CS₅
DH₅
LX₅
BST₅
DL₅
PGND
FB₅
V_L
V+
DL₃
BST₃
LX₃
DH₃
FB₃
Description
Current-sense input for 3.3-V Buck controller—this pins over current threshold is 100 mV with respect to FB₃.
Soft-start input for 3.3 V. Connect capacitor from SS₃ to GND.
ON/OFF logic input disables the 3.3-V Buck controller. Connect directly to V_L for automatic turn-on.
Not internally connected.
Not internally connected.
Not internally connected.
Control input to select 3.6-V output. See Voltage Selection Table for input and output combinations.
Control input to select 3.45-V output. See Voltage Selection Table for input and output combinations.
Analog ground.
3.3-V reference output. Supplies external loads up to 5 mA.
Oscillator control/synchronization input. Connect capacitor to GND, 1-mF/mA output or 0.22 mF minimum. For external clock
synchronization, a rising edge starts a new cycle to start. To use internal 200-kHz oscillator, connect to VL or GND. For 300-kHz
oscillator, connect to REF.
Shutdown logic input, active low. Connect to V_L for automatic turn-on. The 5-V V_L supply will not be disabled in shutdown allowing
connection to SHDN.
ON/OFF logic input disables the 5-V Buck Controller. Connect to V_L for automatic turn-on.
Soft-start control input for 5-V Buck controller. Connect capacitor from SS₅ to GND.
Current-sense input for 5-V Buck controller—this pins over current threshold is 100 mV referenced to FB₃.
Gate-drive output for the 5-V supply high-side n-channel MOSFET.
Inductor connection for the 5-V supply.
Boost capacitor connection for the 5-V supply.
Gate-drive output for the 5-V supply rectifying n-channel MOSFET.
Power Ground.
Feedback input for the 5-V Buck controller.
5-V logic supply voltage for internal circuitry—able to source 5-mA external loads. V_L remains on with valid voltage at V+.
Supply voltage input.
Gate-drive output for the 3.3-V supply rectifying n-channel MOSFET.
Boost capacitor connection for the 3.3-V supply.
Inductor connection for the 3.3-V supply.
Gate-drive output for the 3.3-V supply high-side n-channel MOSFET.
Feedback input for the 3.3-V Buck controller.
Document Number: 70190
S-40805—Rev. F, 26-Apr-04
www.vishay.com
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