Datasheet

LT3010/LT3010-5
14
30105fe
5V Buck Converter with Low Current Keep Alive Backup
Buck Converter
Efficiency vs Load Current
TYPICAL APPLICATIONS
BOOST
V
IN
6
2
10
12
D1
10MQ060N
R1
15.4k
V
OUT
5V
1A/50mA
4
4
8
5
1
2
15
14
11
C
C
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
V
C
GND
C2
0.33µF
C1
100µF 10V
SOLID
TANTALUM
L1
†
15µH
D2
D1N914
R2
4.99k
30105 TA03
C3
4.7µF
100V
CERAMIC
V
IN
5.5V*
TO 60V
+
SENSE
OUTIN
SHDN
LT3010-5
GND
OPERATING
CURRENT
HIGH
LOW
*
†
LOAD CURRENT (A)
0
EFFICIENCY (%)
80
90
100
1.00
30105 TA04
70
60
50
0.25 0.50 0.75
1.25
V
IN
= 10V
V
IN
= 42V
V
OUT
= 5V
L = 68µH