Datasheet

13
LTC3401
3401fb
Single Cell to 3V at 200mA, 600kHz Step-Up Converter
Efficiency
TYPICAL APPLICATIO S
U
Single Cell to 3V at 50mA, 1.2mm High, 3MHz Step-Up Converter
Efficiency
3
10
2
6
1
3404 TA05a
LTC3401
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
C3
470pF
C4
20pF
1
CELL
C1
2.2μF
R3
1M
R5
39k
R2
866k
R1
619k
D1
V
OUT
3V
100mA
L1
1μH
C2
4.7μF
C1: TAIYO YUDEN JMK212BJ225MG
C2: TAIYO YUDEN JMK212BJ475MG
D1: CENTRAL SEMICONDUCTOR CMDSH-3
L1: TAIYO YUDEN LB2016
V
IN
= 0.9V TO 1.5V
0 = FIXED FREQUENCY
1 = Burst Mode OPERATION
R
t
10k
+
R4
5.1M
OUTPUT CURRENT (mA)
20
EFFICIENCY (%)
40
50
70
90
0.1 10 100 1000
3401 TA05b
0
1
60
30
10
80
Burst Mode
OPERATION
FIXED
FREQUENCY
V
IN
= 1.2V
3
10
2
6
1
3404 TA06a
LTC3401
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
C3
470pF
C4
4.7pF
1
CELL
C1
3.3μF
R3
1M
R5
82k
R2
866k
R1
619k
D1
V
OUT
3V
200mA
L1
10μH
C2
22μF
C1: TAIYO YUDEN JMK212BJ335MG
C2: TAIYO YUDEN JMK325BJ226MM
D1: ON SEMICONDUCTOR MBRM120T3
L1: SUMIDA CD54-100
V
IN
= 0.9V TO 1.5V
0 = FIXED FREQUENCY
1 = Burst Mode OPERATION
R
t
50k
+
R4
5.1M
LOAD CURRENT (mA)
0.1
0
EFFICIENCY (%)
10
30
40
50
100
70
3401 TA06b
20
80
90
60
110
100
1000
Burst Mode
OPERATION
FIXED
FREQUENCY
V
IN
= 1.2V