Datasheet

LT1938
20
1938fa
TYPICAL APPLICATIONS
2.5V Step-Down Converter
5V, 2MHz Step-Down Converter
SW
BIAS
FB
V
C
PG
RT
V
IN
BD
V
IN
4V TO 25V
V
OUT
2.5V
2.2A
4.7µF
1µF
47µF
200k
f = 600kHz
D1: DIODES INC. DFLS230L
D2: MBR0540
L: TAIYO YUDEN NP06DZB4R7M
D1
22.1k
84.5k
L
4.7µH
196k
GND
680pF
ON OFF
LT1938
D2
3684 TA04
RUN/SS BOOST
SW
BIAS
FB
V
C
PG
RT
V
IN
BD
V
IN
8.6V TO 22V
V
OUT
5V
2A
2.2µF
0.47µF
10µF
200k
f = 2MHz
D: DIODES INC. DFLS230L
L: SUMIDA CDRH4D22/HP-2R2
D
20k
16.9k
L
2.2µH
590k
GND
680pF
ON OFF
LT1938
1938 TA05
RUN/SS BOOST