LT8495_15 Datasheet, PDF (26/34 Pages) Linear Technology – SEPIC/Boost Converter with 2A, 70V Switch, 9A Quiescent Current, POR and Watchdog Timer

LT8495
TYPICAL APPLICATIONS
750kHz, 16V to 32V Input, 48V Output, 0.5A Boost Converter
V_IN
16V TO 32V
4.7nF
1nF
L1
22µH
D1
C1
2.2µF
V_IN
SW
SWEN
CPOR
CWDT
SS
LT8495
RT
0.2µF
93.1k
RSTIN
FB
BIAS
GND
WDO
WDE
RST
WDI
1M
10pF
715Ω
V_OUT
48V
C2 ^0.5A
4.7µF ×2
25.5k
µC
C1: 2.2µF, 50V, X5R, 1206
L1: WÜRTH LHMI 74437349220
D1: ONSEMI MBRA2H100
C2: 4.7µF, 100V, X7R, 1210
8495 TA02
100
95
90
85
80
75
70
0
Efficiency, V_IN = 24V
100 200 300 400 500
LOAD CURRENT (mA)
8495 TA02b
Transient Response with
400mA to 500mA to 400mA
Output Load Step
Start-Up Waveforms
V_OUT
0.5V/DIV
AC COUPLED
I_L
0.5A/DIV
26
V_IN = 24V
200ms/DIV
8495 TA02c
V_OUT
20V/DIV
V_SS
0.5V/DIV
I_L
0.5A/DIV
96Ω LOAD
V_IN = 24V
5ms/DIV
For more information www.linear.com/LT8495
8495 TA02d
8495fa