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LT3012 Datasheet(PDF) 13 Page - Linear Technology

Part # LT3012
Description  250mA, 4V to 80V Low Dropout Micropower Linear Regulator
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3012 Datasheet(HTML) 13 Page - Linear Technology

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LT3012
13
3012fd
5V Buck Converter with Low Current Keep Alive Backup
TYPICAL APPLICATIONS
Buck Converter
Efficiency vs Load Current
BOOST
VIN
6
2
10
12
D1
10MQ060N
R1
15.4k
VOUT
5V
1A/250mA
4
1
14
11
3
5
15
14
11
CC
1nF
FOR INPUT VOLTAGES BELOW 7.5V,
SOME RESTRICTIONS MAY APPLY
INCREASE L1 TO 30μH FOR LOAD
CURRENTS ABOVE 0.6A AND TO
60μH ABOVE 1A
1, 8, 9, 16
LT1766
SHDN
SYNC
SW
BIAS
FB
VC
GND
C2
0.33μF
C1
100μF 10V
SOLID
TANTALUM
L1
†
15μH
D2
D1N914
R2
4.99k
3012 TA03
750k
249k
C3
4.7μF
100V
CERAMIC
VIN
5.5V*
TO 60V
+
ADJ
OUT
IN
SHDN
LT3012
GND
OPERATING
CURRENT
HIGH
LOW
*
†
LOAD CURRENT (A)
0
80
90
100
1.00
3012 TA04
70
60
50
0.25
0.50
0.75
1.25
VIN = 10V
VIN = 42V
VOUT = 5V
L = 68μH



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