SwRitecghuinlagtors
SI-8050JF
Step-Down
to 5.0 V, 1.5 A,
DC/DC Converter
ELECTRICAL CHARACTERISTICS at TA = +25°C, VI = 20 V, IO = 0.5 A (unless otherwise noted).
Limits
Characteristic
Symbol Test Conditions
Min. Typ. Max.
Output Voltage
VO
Ref. Volt. Temp. Coeff.
aVref
Output Short-Circuit Current IOM
Efficiency
η
Operating Frequency
f
Line Regulation
Load Regulation
Quiescent Current
∆VO(∆VI)
∆VO(∆IO)
IIQ
Chip Enable Voltage
VCE
Soft-Start Current
ISS
See note
VI = 10 V ~ 30 V, IO = 0.5 A
VI = 20 V, IO = 0.2 A ~ 0.8 A
IO = 0 A
VCE = 0.3 V
Converter turn-off voltage
VSS = 0 V
4.90 5.00 5.10
— ±0.5 —
1.6 — —
— 82 —
— 125 —
— 40 100
— 10 40
— 7.0 —
—
— 200
—
— 0.5
—
— -100
Typical values are given for circuit design information only.
Note: Output short-circuit current is at point where output voltage has decreased 5% below VO(nom).
Units
V
mV/°C
A
%
kHz
mV
mV
mA
µA
V
µA
SI-8050JF
Test Circuit
C1 = 220 µF/50 V
C2 = 470 µF/25 V
C3 = 0.47 µF/10 V
L1 = 100 µH
D1 = Sanken RK-16
www.allegromicro.com
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