R1151N Datasheet, PDF (7/26 Pages) RICOH electronics devices division – Boost type Voltage Regulator with Reset

R1151N
TEST CIRCUITS
VIN
6
PNP
1
3
R1
R1151NxxC
2
4
VDET
5
IOUT
C1 ^C2
VIN
6
PNP
1
3
R1151NxxC
IOUT
2
5
4
C2
C1
Fig.1 Standard test Circuit
R1=470kΩ C1=220pF, C2=10µF
VIN
P.G.
PNP
1
6
3
R1151NxxC
IOUT
2
5
4
C1 ^C2
Fig.2 Supply Current Test Circuit
C1=220pF, C2=10µF
VIN
P.G.
PNP
1
6
3
R1151NxxC
IOUT
2
5
4
C1 ^C2
Fig.3 Ripple Rejection, Line Transient Response Test Circuit Fig.4 Load Transient Response Test Circuit
C1=220pF, C2=10µF
C1=220pF, C2=10µF
TYPICAL APPLICATION
IN
+
CI
+
CD
PNP Tr
OUT
+
VDD EXT VOUT
CL
CD ^R1151NxxxC
GND
VDET
R1
RESET
(External Components)
C1 10µF R1=470kΩ PNP Tr.: 2SA1441, 2SB940, 2SB703
CL 10µF
7