ltc3405a Linear Technology Corporation, ltc3405a Datasheet - Page 13

• Manufacturer Part Number: ltc3405a
• Description: 1.5mhz, 300ma Synchronous Step-down Regulator In Thinsot
• Manufacturer: Linear Technology Corporation

APPLICATIO S I FOR ATIO
U
U
TO 4.2V
2.7V
V
IN
AC COUPLED
W
100mV/DIV
200mA/DIV
200mA/DIV
C
2.2µF
CER
I
IN
V
LOAD
100
OUT
†
90
80
70
60
50
40
30
I
L
0.1
V
V
I
LOAD =
4
1
6
IN
OUT
V
= 3.6V
U
IN
V
RUN
MODE
= 2.5V
IN
LTC3405A
= 4.2V
100mA TO 300mA
GND
OUTPUT CURRENT (mA)
1
2
V
SW
V
IN
FB
Figure 7a
= 2.7V
V
Figure 7b
20µs/DIV
Figure 7c
IN
3
5
= 3.6V
10
412k
6.8µH*
3405A F07a
22pF
887k
100
** TAIYO YUDEN JMK212BJ475MG
*SUMIDA CMD4D11-6R8MC
†
TAIYO YUDEN LMK212BJ225MG
3405A F07b
3405A F07c
1000
C
4.7µF
CER
OUT
**
V
2.5V
OUT
LTC3405A
13
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