LTC3878 Linear Technology Corporation, LTC3878 Datasheet - Page 21

• Manufacturer Part Number: LTC3878
• Description: Wide Operating Range No RSENSE Step-Down Controller
• Manufacturer: Linear Technology Corporation

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TYPICAL APPLICATIONS
1000pF
10.0k
10.0k
R
C
R1
1000pF
FB1
C1
10.0k
R
C
0.1μF
FB1
C1
C
SS
0.1μF
C
R
21.5k
SS
80.6k
8.2k
FB2
R2
R
R
2.55k
C
13k
R
FB2
C
576k
C
100pF
R
100k
R
C2
ON
C
100pF
PG
100k
R
C2
PG
R
715k
ON
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
RUN/SS
PGOOD
V
MODE
I
SGND
I
V
TH
ON
RNG
FB
RUN/SS
PGOOD
V
MODE
I
SGND
I
V
TH
ON
RNG
FB
LTC3878
LTC3878
BOOST
PGND
INV
BOOST
PGND
INV
SW
V
BG
NC
TG
CC
IN
SW
V
TG
BG
NC
4.5V to 28V Input, 2.5V/5A Output at 500kHz
CC
IN
4.5V to 32V Input, 1V/5A Output at 250kHz
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
4.7μF
C
VCC
4.7μF
C
VCC
C
0.22μF
B
C
0.22μF
CMDSH-3
B
ZLLS1000
C
0.1μF
D
F
B
C
0.1μF
D
F
B
2.2Ω
R
2.2Ω
F
R
F
M1-1
1/2 Si4816BDY
M1-2
1/2 Si4816BDY
M1
BSC093N04LS
M2
BSC093N04LS
C
C
L1: WURTH 744311220
C
C
C
L1: WURTH 744311220
IN1
OUT
IN1
OUT1
OUT2
: MURATA GRM32ER71H475K
: MURATA GRM32ER60J107M
: MURATA GRM32ER71H475K
: SANYO 2R5TPE330M9
: TDK C3216X5R0J476M
2.2μH
4.7μF
C
330μF
2.2μH
C
4.7μF
L1
50V
OUT1
C
2.5V
IN1
L1
50V
IN1
+
C
100μF
6.3V
+
OUT
2
+
C
22μF
35V
C
47μF
6.3V
C
22μF
35V
IN2
OUT2
IN2
3878 TA05
3878 TA04
LTC3878
V
4.5V TO 28V
V
2.5V
5A
V
4.5V TO 32V
V
1V
5A
IN
OUT
IN
OUT
21
3878f