ST1S14 STMicroelectronics, ST1S14 Datasheet - Page 32

• Manufacturer Part Number: ST1S14
• Description: Up to 3 A step down switching regulator
• Manufacturer: STMicroelectronics

Application information
7.5
32/42
Application circuit
Figure 22. Evaluation board application circuit
Table 11.
VIN
VIN
TP3
TP3
GND
GND
TP5
TP5
C1,C9,C10,C11
C1
C1
Reference
C2, C3
C6,C6
10uF
10uF
C7
C8
R1
R2
R3
D1
L1
50V
50V
C2
C2
10uF
10uF
Component list
50V
50V
C3
C3
68nF
68nF
50V
50V
C4
C4
EKZE500ESS101MHB5D
100 nF
100 nF
UMK325BJ106MM-T
50V
50V
C5
C5
Part number
1
STPS3L60U
744314850
JP1
JP1
JP2
JP2
Doc ID 17977 Rev 1
2
1
7
5
3
U1
U1
BOOT
VIN
EN2
EN1
GND
C6
C6
6
EX-PAD
PGOOD
100nF
100nF
ST1S14
ST1S14
9
SW
FB
(size 7 x 6.9 x 4.8 mm)
I
(size 8 x 11.5 mm)
SAT
8
2
4
NOT MOUNTED
Description
=4.5A, I
100 μF 50V
(size 1210)
(size 0603)
(size 0603)
(size 0603)
(size 0603)
(size 0603)
100nF 50V
150pF 50V
(size SMB)
10 μF 50V
D1
D1
3A 60V
4.7 KΩ
2.7 KΩ
47 KΩ
8.5μH
R2
R2
2.7K
2.7K
power plane
RMS
744314101
R3
R3
L1
L1
R1
R1
C7
C7
150pF
150pF
10uH
10uH
small signal
=4A
4.7K
4.7K
47K
47K
C8
C8
100uF
100uF
STMicroelectronics
Nippon Chemicon
Manufacturer
Taiyo Yuden
C9
C9
Wurth
C10
C10
ST1S14
PGOOD
PGOOD
C11
C11
VOUT
VOUT
TP4
TP4
GND
GND
TP7
TP7
TP6
TP6