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SPI-8001TW Arkusz danych(PDF) 3 Page - Allegro MicroSystems

Numer części SPI-8001TW
Szczegółowy opis  Dual 1.5 A, DC/DC Step-Down Converter
Download  10 Pages
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Producent  ALLEGRO [Allegro MicroSystems]
Strona internetowa  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

SPI-8001TW Arkusz danych(HTML) 3 Page - Allegro MicroSystems

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SPI-8001TW
Dual 1.5 A, DC/DC
Step-Down Converter
www.allegromicro.com
Switching
Regulators
3
ELECTRICAL CHARACTERISTICS at T
A = +25°C, VI = VCC = 15 V (unless otherwise noted).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Internal Reference Voltage
V
ref
V
I = 10 V, VO = 1 V, IO = 0.1 A
0.996
1.006 1.016
V
Ref. Volt. Temp. Coeff.
a
Vref
V
I = 10 V, VO = 1 V, IO = 0.1 A
±0.1
mV/°C
Output Short-Circuit Current
I
OM
See note
1.6
A
Efficiency
η
V
O = 5 V, IO = 0.5 A, II includes ICC
—80
%
V
CC = 5 V, VO = 5 V, IO = 0.5 A,
83
%
I
I does not include ICC
Operating Frequency
f
V
O = 5 V, IO = 0.5 A
250
kHz
Line Regulation
∆V
O(
∆VI)
V
I = VCC = 10 V ~ 20 V, VO = 5 V, IO = 1 A
30
60
mV
Load Regulation
∆V
O(
∆IO)
V
O = 5 V, IO = 0.2 A ~ 1.5 A
10
40
mV
Supply Current
I
CC
I
O = 0 A
8.5
mA
Quiescent Current
I
IQ
V
CC = 5 V, IO = 0 A, VO ≤ 12 V
4.0
mA
V
CE = 0 V or open
1.0
µA
I
CCQ
V
CE = 0 V or open
1.0
µA
Chip Enable Voltage
V
CEH
2.0
V
V
CEL
0.8
V
Chip Enable Input Current
I
CE
V
CE = 20 V
95
µA
Soft-Start Voltage
V
SS
Converter turn-off voltage
0.5
V
Soft-Start Current
I
SS
V
SS = 0 V
-60
-80
µA
Typical values are given for circuit design information only.
Note: Output short-circuit current is at point where output voltage has decreased 5% below V
O(nom).
Test Circuit


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