Datasheet

LTC3411
20
3411fb
TYPICAL APPLICATIONS
All Ceramic 2-Cell to 3.3V and 1.8V Converters
Effi ciency vs Load Current
LTC3402
V
IN
SHDN
MODE/SYNC
PGOOD
R
T
SW
V
OUT
FB
V
C
GND
1000pF
10pF
2
CELLS
C1
10μF
47k
49.9k
604k
1M
V
OUT
3.3V
120mA/1A
L1
4.7μH
D1
C2
44mF
(2 s 22mF)
C1: TAIYO YUDEN JMK212BJ106MG
C2: TAIYO YUDEN JMK325BJ226MM
C5, C6: TAIYO YUDEN JMK325BJ226MM
V
IN
= 2V TO 3V
0 = FIXED FREQ
1 = Burst Mode OPERATION
+
SYNC/MODE
LTC3411
PV
IN
SW
SV
IN
PGOOD
I
TH
SHDN/R
T
PGNDSGND
V
FB
L2
2.2μH
V
OUT
1.8V/1.2A
887k
412k
1000pF
3411 TA06
C6
22μF
13k
C5
22μF
324k
D1: ON SEMICONDUCTOR MBRM120LT3
L1: TOKO A916CY-4R7M
L2: TOKO A914BYW-2R2M (D52LC SERIES)
LOAD CURRENT (mA)
10
80
EFFICIENCY (%)
90
100
100 1000 10000
3211 TA07
70
75
85
95
65
60
3.3V
1.8V
V
IN
= 2.4V
Burst Mode OPERATION