LT3010 LINER [Linear Technology], LT3010 Datasheet - Page 13

• Manufacturer Part Number: LT3010
• Description: 50mA, 3V to 80V Low Dropout Micropower Linear Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIO S
OPERATING
LOW
CURRENT
TO 60V
5.5V*
HIGH
V
IN
C3
4.7 F
100V
CERAMIC
U
5V Buck Converter with Low Current Keep Alive Backup
15
14
4
8
5
100
90
70
60
50
80
V
SHDN
SYNC
IN
SHDN
GND
0
IN
V
L = 68 H
1, 8, 9, 16
OUT
LT3010-5
LT1766
BOOST
GND
Efficiency vs Load Current
= 5V
0.25
6
4
SENSE
BIAS
V
OUT
Buck Converter
SW
LOAD CURRENT (A)
C
FB
11
0.50
C
1nF
2
10
12
C
1
2
V
V
IN
IN
0.75
= 10V
= 42V
D1
10MQ060N
C2
0.33 F
*
†
1.00
FOR INPUT VOLTAGES BELOW 7.5V,
SOME RESTRICTIONS MAY APPLY
INCREASE L1 TO 30 H FOR LOAD
CURRENTS ABOVE 0.6A AND TO
60 H ABOVE 1A
15 H
L1
3010 TA04
†
R1
15.4k
R2
4.99k
D1N914
1.25
D2
+
C1
100 F 10V
SOLID
TANTALUM
LT3010/LT3010-5
3010 TA03
V
5V
1A/50mA
OUT
13
3010f