LTC3407-3 Linear Technology, LTC3407-3 Datasheet - Page 14

• Manufacturer Part Number: LTC3407-3
• Description: Dual Synchronous 1.8V/0.8A and 3.3V/0.8A 2.25MHz Step-Down DC/DC Regulator
• Manufacturer: Linear Technology

LTC3407-3
14
TYPICAL APPLICATIO S
800mA
V
V
U
5V
OUT2
3.3V
IN
10µF
C3
C1, C2, C3: TAIYO YUDEN JMK212BJ106MD-B
L1, L2: COILCRAFT LDO3310-222MX
*IF C1 IS GREATER THAN 3" FROM POWER SOURCE,
ADDITIONAL CAPACITANCE MAY BE REQUIRED.
100
95
90
85
80
75
70
65
60
55
50
C1*
10µF
2.2µH
1
L2
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
IN
= 5V
Efficiency vs Load Current
1mm Height Core Supply
MODE/SYNC
SW2
V
V
RUN2
OUT2
OUT
V
LOAD CURRENT (mA)
OUT
10
= 3.3V
LTC3407-3
= 1.8V
GND
V
IN
RUN1
V
SW1
POR
OUT1
100
34073 TA03b
2.2µH
L1
R5
100k
1000
POWER-ON
RESET
34073 TA03a
C2
10µF
V
1.8V
800mA
OUT1
www.DataSheet4U.com
34073fa