Datasheet

LTC3103
17
3103f
TYPICAL APPLICATIONS
5V to 1.2V/300mA Low Noise Regulator Using Forced Continuous Operation
Efficiency vs Output Current
V
IN
C
BST
0.022µF
BST
V
IN
5V
MODE SW
RUN PGOOD
PGOOD
V
CC
FB
LTC3103
GND
R1
402k
L1
4.7µH
V
OUT
1.2V
300mA
1M
3103 TA05a
10µF
L1: SUMIDA CDRH4D11NP-4R7N
1µF
10µF
ON
OFF
R2
402k
C
FF
22pF
OUTPUT CURRENT (A)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
0.0001 0.01 0.1 1
3103 TA05b
0
0.001
V
IN
= 2.5V
V
IN
= 3.3V
V
IN
= 5V