Datasheet

LTC3878
23
3878fa
Positive-to-Negative Converter, –5V/5A at 300kHz
+ +
RUN/SS
LTC3878
BOOST
16
C
B
0.22µF
M2
RJK0304DPB
M1
RJK0304DPB
C
VCC
4.7µF
C
C1
2200pF
C
C2
100pF
D
B
CMDSH-3
L1
2.2µH
C
OUT1
120µF
6.3V
s3
C
OUT2
10µF
10V
s4
+
C
IN1
10µF
25V
C
IN2
82µF
25V
V
OUT
–5V
5A
3878 TA07
V
IN
4.5V TO 20V
1
PGOOD
R
C
15k
R
FB1
20.0k
TG
152
V
RNG
SW
143
FCB PGND
134
I
TH
BG
125
SGND INTV
CC
116
I
ON
V
IN
107
V
FB
NC
98
R
ON
2.4M
R
FB2
105k
C
F
0.1µF
R
F
2.2Ω
C
IN1
: TDK C3225X5R1E106MT
C
OUT1
: KEMET A700D127M006ATE015 s3
C
OUT2
: MURATA GRM31CR61A106KA01 s4
L1: IHLP5050EZ-01 2.2µH
C
SS
0.1µF
V
IN
5V
12V
20V
I
OUT
5A
7.7A
9.1A
Typical applicaTions