SM8172A Datasheet, PDF (13/17 Pages) Nippon Precision Circuits Inc – 2-output Power Supply IC

SM8172A
13. TYPICAL APPLICATION CIRCUIT
5.0V
C1
10µF
C2
10µF
DC/DC control
Regulator control
VIN1
PGND
VIN2
GND
ENDCO
ENLDO
RESETN
R3
10kΩ
RESETN output
LDOUT
FB
LX
C5
3.3µF
Regulator output
R2
330kΩ
C3
R1
8pF
220kΩ
L
2.2µH
C4
4.7µF
DCOUT
(1.0V)
Recommended parts list
L
R1, R2
R3
C1, C2
C3
C4
C5
: 2.2µH
: 220kΩ, 330kΩ
: 10kΩ
: 10µF
: 8pF
4.7µF
: 3.3µF
1002AS-2R2M (TOKO)
NR4018T2R2M (TAIYO YUDEN)
VLF4014ST2R2M1R9 (TDK)
–
–
Ceramic Capacitor C2012X5R1A106K (TDK)
Ceramic Capacitor GRM219B31A106K (Murata)
Ceramic Capacitor
Ceramic Capacitor GRM219B31A475K (Murata)
Ceramic Capacitor GRM219B31A335K (Murata)
Note. RESETN is open-drain, therefore, please take care so that the High level signal does not exceed the absolute maximum rating of IC which receives
the reset signal. Besides, if the rest signal is not used, RESETN should be connected to GND.
SEIKO NPC CORPORATION —13