SI9137LG-E3 Vishay, SI9137LG-E3 Datasheet - Page 8

• Manufacturer Part Number: SI9137LG-E3
• Description: IC,SMPS CONTROLLER,CURRENT-MODE,BICMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Vishay

Specifications of SI9137LG-E3

• Duty Cycle (max): 95 %
• Output Voltage: 3.3 V, 5 V, 5 V to ADJ V
• Output Current: 1000 mA
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Switching Frequency: 330 KHz
• Maximum Operating Temperature: + 90 C
• Minimum Operating Temperature: 0 C
• Synchronous Pin: No
• Topology: Boost, Buck, Flyback
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Si9137
Vishay Siliconix
www.vishay.com
8
*PGND and GND planes should be connected to a single point ground.
STANDARD APPLICATION CIRCUIT
+3.3 V
C6
330 mF
OUT
+3.3 V up
to 1 mA
0.02 W
V
R
IN
1
PGND*
GND*
C11
1 mF
L2
10 mH
Si4416DY
C7
33 mF
Q1
20 kW
C1
0.1 mF
Q3
Si4812DY
V
L
CMPD2836
V
BST
DH
LX
DL
CS
FB
RESET
RUN/STOP
SEQ
REF
GND
IN
3
3
3
3
3
3
FIGURE 1.
BSTFY
COMP
PGND
DHFY
DLFY
FBFY
LXFY
BST
CSN
CSP
D1A
DH
CS
LX
DL
FB
V
L
5
5
5
5
5
5
0.1 mF
D2, BYS10-35
D3
Si4812DY
C8
D1B
CMPD2836
C2
0.1 mF
Q4
C12
120 pF
Q2
Si4416DY
Q5
Si2304DS
L1, 10 mH
L3, 10 mH
C4
33 mF
4.7 mF
0.2 W
C9
D4, BYS10-35
Q6
Si2304DS
0.02 W
R
V
where:
R
3
FLYBACK
2
+5 V up to 30 mA
330 mF
S-40808—Rev. C, 26-Apr-04
Document Number: 70874
+
C3
R
R
C5
4.7 mF
R
5
6
5
R
) R
+5 V
C10
100 mF
6
6
OUT
V
+5 to +12 V
FLYBACK
V
REF