SI9130 Vishay, SI9130 Datasheet - Page 7

• Manufacturer Part Number: SI9130
• Description: Pin-programmable Dual Controller?portable Pcs
• Manufacturer: Vishay

Document Number: 70190
S-40805—Rev. F, 26-Apr-04
PIN CONFIGURATION AND DESCRIPTION
Pin
3.45ADJ
3.6ADJ
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
SHDN
SYNC
GND
ON
REF
ON
CS
SS
SS
NC
NC
NC
3
3
3
5
5
Symbol
10
11
12
13
14
1
2
3
4
5
6
7
8
9
3.45ADJ
3.6ADJ
PGND
SYNC
SHDN
GND
BST
BST
ON
REF
ON
DH
DH
CS
SS
SS
CS
DL
FB
DL
FB
LX
LX
NC
NC
NC
V+
V
L
5
5
5
3
3
3
3
3
5
5
5
3
3
5
5
3
SSOP-28
Top View
Current-sense input for 3.3-V Buck controller—this pins over current threshold is 100 mV with respect to FB
Soft-start input for 3.3 V. Connect capacitor from SS
ON/OFF logic input disables the 3.3-V Buck controller. Connect directly to V
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
connection to SHDN.
ON/OFF logic input disables the 5-V Buck Controller. Connect to V
Soft-start control input for 5-V Buck controller. Connect capacitor from SS
Current-sense input for 5-V Buck controller—this pins over current threshold is 100 mV referenced to FB
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
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.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
FB
DH
LX
BST
DL
V+
V
FB
PGND
DL
BST
LX
DH
CS
L
3
3
3
5
5
5
3
5
5
3
5
Si9130CG
Si9130CG-T1
Si9130LG
Si9130LG-T1
Part Number
Standard
L
for automatic turn-on. The 5-V V
Demo Board
Si9130DB
3
to GND.
Description
Si9130CG-T1—E3
Si9130LG-T1—E3
Lead (Pb)-Free
Part Number
L
Ordering Information
for automatic turn-on.
Temperature Range
5
to GND.
L
for automatic turn-on.
L
0 to 70_C
supply will not be disabled in shutdown allowing
L
remains on with valid voltage at V+.
Temperature
−10 to 90_C
0 to 70_C
0 to 70_C
10 to 90_C
Range
Vishay Siliconix
3
.
Board Type
Surface Mount
3
.
3.45 V or 3.6 V
5 V and 3.3 V
5 V and 3.3 V
www.vishay.com
Si9130
V
OUT
7