SI-8050JF Datasheet, PDF (2/2 Pages) Allegro MicroSystems – Step-Down to 5.0 V, 1.5 A, DC/DC Converter

■External Dimensions (TO220F-5)
10.0^±0.2
4.2^±0.2
2.8^±0.2
2.6^±0.1
0.95^±0.15
0.85
+0.2
–0.1
P1.7^±0.7×4=6.8^±0.7
0.45
+0.2
–0.1
3.9^±0.7
(4.3)
8.2^±0.7
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Forming No.1101
■Block Diagram
SI-8015JF
1 VIN
5 ON/OFF
PReg.
OCP
ON/OFF
Soft
Start
Reset
OSC
+
–
Comp.
Error Amp. ₊
–
GND
3
SW OUT
2
Latch&
Drive
TSD
VREF
4
VREF
■Typical Connection Diagram
VIN
220µF
SI-8015JF
1
VIN
SW ²
SI-8015JF
4
+ _{ON/OFF GND}
VREF
5
3
L1
VOUT
R1
Di
C4
R2
REF
+
470µF
GND
GND
IREF
IREF shall be approx. 2mA.
C1 : 50V/220µF
C2 : 25V/470µF
C3 : 10V/0.47µF (Only when using soft-start function)
C4 : 6800pF
L1 : 100µH
Di : RK16 (Sanken)
VREF × (R1+R2)
VOUT=
R2
SI-8000JF Series
(Unit : mm)
Pin Assignment
q VIN
w SWOUT
e GND
r VOS
t ON/OFF
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 2.3g
8033JF, 8050JF, 8120JF
1 VIN
5 ON/OFF
PReg.
OCP
ON/OFF
Soft
Start
Reset
OSC
+
–
Comp.
Error Amp. ₊
–
GND
3
SW OUT
2
Latch&
Drive
TSD
4
VREF
VIN
C1
GND
8033JF, 8050JF, 8120JF
1
VIN
SW ²
4
SI-8000JF ^VS
+ _{ON/OFF GND}
5
3
L1
Di
C3
VOUT
+
C2
GND
C1 : 50V/220µF
C2 : 25V/470µF
C3 : 10V/0.47µF (Only when using soft-start function)
L1 : 100µH
Di : RK16 (Sanken)
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