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LT8331 Datasheet(HTML) 30 Page - Analog Devices

Part No. LT8331
Description  Low IQ Boost/SEPIC/Flyback/Inverting Converter with 0.5A, 140V Switch
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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LT8331 Datasheet(HTML) 30 Page - Analog Devices

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LT8331
30
Rev. C
For more information www.analog.com
ANALOG DEVICES, INC. 2015-2020
03/20
www.analog.com
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LT8300
100VIN Micropower Isolated Flyback Converter with
150V/260mA Switch
VIN = 6V to 100V, Low IQ Monolithic No-Opto Flyback, 5-Lead
TSOT-23
LT8330
60V, 1A, Low IQ Boost/SEPIC/Inverting Converter
VIN = 3V to 40V, VOUT(MAX) = 60V, IQ = 6µA (Burst Mode Operation),
6-Lead TSOT-23, 3mm × 2mm DFN packages
LT8494
70V, 2A Boost/SEPIC 1.5MHz High Efficiency Step-Up
DC/DC Converter
VIN = 1V to 60V (2.5V to 32V Start-Up), VOUT(MAX) = 70V, IQ = 3µA
(Burst Mode Operation), ISD = <1µA, 20-Lead TSSOP
LT8570/LT8570-1
65V, 500mA/250mA Boost/Inverting DC/DC Converter
VIN(MIN) = 2.55V, VIN(MAX) = 40V, VOUT(MAX) = ±60V, IQ = 1.2mA,
ISD = <1mA, 3mm × 3mm DFN-8, MSOP-8E
LT8580
1A (ISW), 65V, 1.5MHz, High Efficiency Step-Up DC/DC
Converter
VIN: 2.55V to 40V, VOUT(MAX) = 65V, IQ = 1.2mA, ISD = <1µA,
3mm × 3mm DFN-8, MSOP-8E
40V to 80V Input, 5V Isolated Output Converter
1
D1
D1, D2: PMEG6010CEJ
T1: WURTH ELEKTRONIK 750311558
C3: MURATA GRM31CR61A475KA01L
C5: MURATA GRM32ER61A107ME20L
8331 TA02
4 : 1
T1
D2
R2
3.24k
C4
27nF
R5
100k
C2
1µF
VOUT = 5V
100mA
IN
SW1-2
EN/UVLO
LT8331
VIN
40V TO
80V
R1
7.15k
SYNC/MODE
GND
FBX
BIAS
SS
C5
100µF
×2
C1
1µF
V
RT
INTVCC
C3
4.7µF
R6
10Ω
Efficiency
Load Regulation
ISOLATED FLYBACK: VOUT = 5V
VIN = 40V
VIN = 80V
LOAD CURRENT (mA)
0
20
40
60
80
100
120
50
55
60
65
70
75
80
85
90
95
100
8331 TA02b
LOAD CURRENT (mA)
0
20
40
60
80
100
120
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
8331 TA02c
ISOLATED FLYBACK: VOUT = 5V
VIN = 40V
VIN = 80V


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