Datasheet

LTC3642
18
3642fc
TYPICAL APPLICATIONS
Small Size, Limited Peak Current, 10mA Regulator
V
IN
LTC3642
RUN
C
IN
1µF
R3
470k
R4
100k
R5
33k
I
SET
3642 TA05a
SW
V
IN
7V TO 45V
V
OUT
5V
10mA
V
FB
SS
HYST
GND
L1
470µH
R1
470k
R2
88.7k
C
IN
: TDK C3225X7R1H105KT
C
OUT
: AVX 08056D106KAT2A
L1: MURATA LQH32CN471K23
C
OUT
10µF
V
IN
LTC3642
RUN
C
IN
1µF
SS
3642 TA07a
SW
V
IN
15V TO 45V
V
OUT
15V
10mA
V
FB
HYST
I
SET
GND
L1
4700µH
R1
3M
R2
169k
C
IN
: AVX 18125C105KAT2A
C
OUT
: TDK C3216X7R1E475KT
L1: COILCRAFT DS1608C-475
C
OUT
4.7µF
LOAD CURRENT (mA)
0.1
60
EFFICIENCY (%)
70
80
100
1 10
3642 TA07b
90
65
75
95
85
V
IN
= 24V
V
IN
= 36V
V
IN
= 45V
High Efficiency 15V, 10mA Regulator Efficiency vs Load Current