LTC3613 Datasheet, PDF (30/36 Pages) Linear Technology – 24V, 15A Monolithic Step Down Regulator

LTC3613
TYPICAL APPLICATIONS
PV_IN
INTV_CC
R_PGD
100k
PGOOD
30.9k
RUN
SV_IN
EXTV_CC
V_OUT
SENSE^–
V_RNG
SENSE⁺
10k
C_SS
0.1μF
LTC3613
SW
C_ITH1
1000pF
R_ITH
49.9k
TRACK/SS
ITH
BOOST
R_T
205k
RT
INTV_CC
MODE/PLLIN PGND
SGND
V_OSNS+
V_OSNS–
R_VIN
2.2Ω
C_VIN
0.1μF
C_DCR R_DCR
0.1μF 8.25k
R_B
C_B
0.1μF
10Ω
D_B
INTV_CC
C_VCC
4.7μF
L1
4.7μH
R_FB2
147k
R_FB1
20k
C_IN1: NICHICON UCJ1H101MCL1GS
C_OUT1: SANYO 6TPE330MIL
D_B: DIODES INC. SDM10K45
L1: COILCRAFT XAL1010-472ME
C_IN2 +
10μF
×3
V_IN
C_IN1 ^{7V TO 24V}
100μF
50V
V_OUT
5V
8A
C_OUT2 +
100μF
×2
C_OUT1
330μF
6.3V
×2
3613 TA02
Efficiency
100
V_IN = 12V
V_OUT = 5V
95
90
FORCED
85
CONTINUOUS
MODE
80 _{PULSE-SKIPPING}
MODE
75
70
0.01
V_IN = 12V
V_OUT = 5V
0.1
1
10
LOAD CURRENT (A)
3613 TA03
Figure 11. 5V, 8A, 200kHz High Efficiency Step-Down Converter
3613fa
30