SC2603EVB SEMTECH [Semtech Corporation], SC2603EVB Datasheet - Page 8

• Manufacturer Part Number: SC2603EVB
• Description: Simple PWM Boost Controller
• Manufacturer: SEMTECH [Semtech Corporation]

POWER MANAGEMENT
© 2005 Semtech Corp.
Applications Circuit
Bill of Material
12V to 25V @ 1A boost converter
Item
Item
10
10
11
11
12
12
13
13
14
14
15
15
16
16
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
(open drain)
(open drain)
Open Drain with < 100
pull down impedance
Enable
Enable
Quantity
Quantity
VIN = 12V
VIN = 12V
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.1u
0.1u
C4
C4
1u
1u
C3
C3
Reference
Reference
2.2
2.2
R1
R1
5
5
3
3
1
1
C11
C11
C1
C1
C2
C2
C3
C3
C4
C4
C5
C5
D1
D1
Q1
Q1
R1
R1
R2
R2
R3
R3
R4
R4
R5
R5
R6
R6
U1
U1
L1
L1
VIN
VIN
EN/SS
EN/SS
FB
FB
U2
U2
SC2603
SC2603
GND
GND
Gate
Gate
CS
CS
4
4
6
6
2
2
470u
470u
C1
C1
470u/Alum
470u/Alum
330u/Alum
330u/Alum
AO4442
AO4442
SC2603
SC2603
1N5819
1N5819
8
1.78K
1.78K
18uH
18uH
120p
120p
Part
Part
0.1u
0.1u
20m
20m
1uF
1uF
34K
34K
2.2
2.2
18uH
18uH
1u
1u
1K
1K
L1
L1
0
0
120p
120p
C5
C5
R5
R5
1K
1K
20m
20m
R6
R6
Q1
Q1
AO4442
AO4442
3A, 40V
3A, 40V
D1
D1
footprint
footprint
SOT23-6
SOT23-6
603
603
603
603
603
603
805
805
603
603
603
603
603
603
603
603
603
603
1.78K
1.78K
R2
R2
34K
34K
R4
R4
VOUT=25V
VOUT=25V
330u/35V
330u/35V
C2
C2
Alpha & Omega
Alpha & Omega
SEMTECH
SEMTECH
COOPER
COOPER
Vendor
Vendor
SANYO
SANYO
SANYO
SANYO
SC2603
www.semtech.com
C11
C11
1u
1u