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| LTC3637_15 Datasheet, PDF (20/26 Pages) Linear Technology – 76V, 1A Step-Down Regulator | |||
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LTC3637
TYPICAL APPLICATIONS
VIN
5V TO 76V
CIN
4.7µF
VIN
SW
LTC3637
RUN VFB
FBO
SS
VPRG1
ISET VPRG2
CISET
47pF
RISET
255k
OVLO
GND
L1
10µH
D1
COUT
100µF
Ã2
VOUT
5V
1A
CSS
150nF
3637 F13
Soft-Start Waveform
OUTPUT
VOLTAGE
1V/DIV
2ms/DIV
CIN: TDK C5750X7R2A-475M
COUT: 2 Ã MURATA GRM32ER61A107ME20L
D1: DIODES INC. SBR3U100LP
L1: SUMIDA CDRH105R-100
Figure 13. 5V-76V Input to 5V Output, 1A Regulator with Soft-Start
3637 F13b
36.5V to 76V Input to 36V Output, 1A Regulator
VIN
36.5V TO 76V
CIN
2.2µF
VIN
SW
LTC3637
RUN VFB
FBO
SS
VPRG1
ISET
OVLO VPRG2
GND
L1
10µH
D1
R1
200k
R2
32.4k
COUT
10µF
VOUT
36V
1A
3637 TA02a
CIN: TDK CGA6N3X7R2A225M
COUT: TAIYO YUDEN UMK325BJ106MM
D1: DIODES INC. ES2BA-13-F
L1: TDK SLF10145T-100M
OUTPUT VOLTAGE
1V/DIV
AC-COUPLED
SW VOLTAGE
50V/DIV
INDUCTOR CURRENT
2A/DIV
VIN = 76V
VOUT = 36V
IOUT = 1A
5µs/DIV
3637 TA02b
3637fa
20
For more information www.linear.com/LTC3637
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