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LT8331 Datasheet(HTML) 7 Page - Analog Devices

Part No. LT8331
Description  Low IQ Boost/SEPIC/Flyback/Inverting Converter with 0.5A, 140V Switch
Download  30 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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LT8331 Datasheet(HTML) 7 Page - Analog Devices

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LT8331
7
Rev. C
For more information www.analog.com
BLOCK DIAGRAM
8331 BD
VC
A7
+
+
A6
+
+
A2
+
C1
L2
R4
OPT
VBIAS + 0.4V(+)
VBIAS – 1.6V(–)
4.4V(+)
4.0V(–)
3.2V REGULATOR
SW1
OSCILLATOR
A6
ERROR AMP
SELECT
FREQUENCY
FOLDBACK
INTVCC
UVLO
SWITCH
LOGIC
BURST
DETECT
SLOPE
DRIVER
M1
INTVCC
TJ > 170°C
1.74V(+)
1.6V(–)
INTERNAL
REFERENCE
UVLO
CIN
SW2
BIAS
R3
OPT
VIN
COUT
CVCC
D1
L1
VOUT
UVLO
RT
SYNC/MODE
OVER-
CURRENT
A7
OVERCURRENT
+
A1
PGND/GND
ERROR
AMP
ERROR
AMP
SLOPE
1.6V
FBX
VOUT
R2
R1
–0.8V
MAX
ILIMIT
1.9×
MAX
ILIMIT
RSENSE
PWM
COMPARATOR
Q1
R5
A3
A5
ISS
2 A
M2
SS
CSS
EN/UVLO
VIN
UVLO
A4


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