LTC3411 Linear Technology, LTC3411 Datasheet - Page 17

• Manufacturer Part Number: LTC3411
• Description: 1.25A/ 4MHz/ Synchronous Step-Down DC/DC Converter
• Manufacturer: Linear Technology

TYPICAL APPLICATIO S
887k
R2
C1, C2: TAIYO YUDEN JMK325BJ226MM
C4: SANYO POSCAP 6TPA47M
D1: ON MBRM120L
280k
R1
10pF
PGOOD
TO 5V
C7
2.63V
V
IN
100k
13k
R3
U
C3
1000pF
PV
SV
PGOOD
V
I
TH
FB
Single Inductor, Positive, Buck-Boost Converter
IN
IN
LTC3411
85
80
75
70
65
60
55
22 F
C1
10
SYNC/MODE
f
O
SHDN/R
= 1MHz
Efficiency vs Load Current
PGND
SGND
SW
T
LOAD CURRENT (mA)
L1: TOKO A915AY-3R3M (D53LC SERIES)
M1: SILICONIX Si2302DS
V
IN
R4
324k
100k
V
= 2.5V
IN
V
V
IN
= 3V
IN
= 3.5V
3.3 H
L1
V
IN
3411 TA03
= 4V
1000
M1
D1
3411 TA02
C2
22 F
2
+
C4
47 F
V
3.3V/
400mA
OUT
LTC3411
sn3411 3411fs
17