LTC3878 Linear Technology Corporation, LTC3878 Datasheet - Page 22

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

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LTC3878
TYPICAL APPLICATIONS
22
2200pF
1000pF
20.0k
R
10.0k
C
R
C
FB1
C1
FB1
C1
0.1μF
0.1μF
C
C
SS
SS
R
105k
R
140k
15k
FB2
R
20k
R
FB2
C
C
2.4M
2.7M
R
R
ON
C
100pF
100k
ON
R
C
100pF
C2
C2
PG
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
RUN/SS
PGOOD
V
MODE
I
SGND
I
V
RNG
FB
TH
ON
RNG
FB
LTC3878
LTC3878
2.7M
Positive-to-Negative Converter, –5V/5A at 300kHz
BOOST
BOOST
PGND
INV
INV
PGND
SW
V
13V to 28V Input, 12V/5A Output at 300kHz
BG
NC
TG
SW
V
CC
BG
NC
TG
IN
CC
IN
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
4.7μF
4.7μF
C
C
VCC
VCC
C
0.22μF
C
0.22μF
B
B
CMDSH-3
CMDSH-3
C
0.1μF
D
C
0.1μF
D
F
B
F
B
2.2Ω
2.2Ω
R
R
F
F
C
C
C
L1: IHLP5050EZ-01 2.2μH
IN1
OUT1
OUT2
C
C
L1: IHLP5050FD01 10μH
M1
RJK0304DPB
M2
RJK0304DPB
IN1
OUT1
M1
BSC093N04LS
M2
BSC093N04LS
: TDK C3225X5R1E106MT
: KEMET A700D127M006ATE015 3
: MURATA GRM31CR61A106KA01 4
: MURATA GRM32ER71H475K
: SANYO 16SVPA82MAA
4.7μF
4.7μF
C
50V
C
IN1
50V
IN1
C
120μF
2.2μH
OUT1
10μH
6.3V
L1
L1
3
+
+
+
+
C
82μF
25V
C
22μF
35V
C
82μF
16V
+
IN2
IN2
OUT1
C
10μF
10V
OUT2
4
3878 TA06
12V
20V
V
5V
V
4.5V TO 20V
IN
V
13V TO 32V
V
12V
5A
IN
IN
OUT
3878 TA07
7.7A
9.1A
I
OUT
5A
V
–5V
5A
OUT
3878f