LTC3807_15 Datasheet, PDF (29/32 Pages) Linear Technology – Low IQ, Synchronous Step-Down Controller with 24V Output Voltage Capability

APPLICATIONS INFORMATION
LTC3807
V_IN
4V TO 38V
C_IN
22µF
INTV_CC
100k
41.2k
2200pF
10k
100pF
0.1µF
V_IN
LTC3807
PGOOD
RUN
INTV_CC
PGND
I_LIM
EXTV_CC
PLLIN/MODE
TG
BOOST
FREQ
SW
BG
ITH
TRACK/SS
SGND
SGND
SENSE⁺
SENSE^–
V_FB
2.2µF
D1
0.1µF
MTOP
L1
4.7µH
MBOT
R_SENSE
8mΩ
1nF
MTOP, MBOT: Si7850DP
L1 COILCRAFT SER1360-472KL
C_OUT: SANYO 6TPE150M
D1: DFLS1100
Figure 12. High Efficiency 3.3V Step-Down Converter
+ _COUT
150µF
V_OUT
3.3V
5A
10µF
100k
31.6k
3807 F12
V_IN
12.5V TO 38V
C_IN
22µF
INTV_CC
100k
V_OUT
60.4k
4.7nF
15.4k
47pF
0.1µF
V_IN
PGOOD
RUN
LTC3807
INTV_CC
PGND
I_LIM
EXTV_CC
PLLIN/MODE
TG
BOOST
FREQ
SW
BG
ITH
TRACK/SS
SGND
SGND
SENSE⁺
SENSE^–
V_FB
2.2µF
D1
0.1µF
MTOP
L1
4.7µH
MBOT
R_SENSE
5mΩ
1nF
MTOP, MBOT: RJK0452
L1 WÜRTH 7443320470
C_OUT: SANYO 16SVP150M
D1: DFLS1100
Figure 13. High Efficiency 12V Step-Down Converter
For more information www.linear.com/LTC3807
+ _COUT
180µF
V_OUT
12V
10A
10µF
1M
71.5k
3807 F13
3807f
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