SPI-8001TW-TL ALLEGRO [Allegro MicroSystems], SPI-8001TW-TL Datasheet - Page 3

• Manufacturer Part Number: SPI-8001TW-TL
• Description: Dual 1.5 A, DC/DC Step-Down Converter
• Manufacturer: ALLEGRO [Allegro MicroSystems]

ELECTRICAL CHARACTERISTICS
Characteristic
Internal Reference Voltage
Ref. Volt. Temp. Coeff.
Output Short-Circuit Current
Efficiency
Operating Frequency
Line Regulation
Load Regulation
Supply Current
Quiescent Current
Chip Enable Voltage
Chip Enable Input Current
Soft-Start Voltage
Soft-Start Current
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
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Symbol
V
V
V
V
a
I
V
V
I
I
CCQ
I
I
I
OM
O( VI)
O( IO)
CEH
CC
CEL
CE
Vref
SS
IQ
f
SS
ref
Test Conditions
V
V
See note
V
V
V
V
V
I
V
V
V
V
Converter turn-off voltage
V
I
O
at T
I
I
I
O
CC
O
I
O
CC
CE
CE
CE
SS
does not include I
= 0 A
= 10 V, V
= 10 V, V
= V
= 5 V, I
= 5 V, I
= 5 V, I
= 0 V or open
= 0 V or open
= 20 V
= 0 V
= 5 V, V
= 5 V, I
A
CC
= +25°C, V
= 10 V ~ 20 V, V
O
O
O
O
O
O
= 0.5 A, I
O
= 0.5 A
= 0.2 A ~ 1.5 A
= 0 A, V
= 1 V, I
= 1 V, I
= 5 V, I
I
= V
CC
O
O
O
I
O
CC
includes I
= 0.1 A
= 0.1 A
= 0.5 A,
= 15 V (unless otherwise noted).
12 V
O
= 5 V, I
CC
O
= 1 A
Step-Down Converter
0.996
Min.
Dual 1.5 A, DC/DC
1.6
2.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
O(nom)
Test Circuit
SPI-8001TW
1.006 1.016
Typ.
±0.1
250
-60
8.5
4.0
80
83
30
10
95
—
—
—
—
—
—
.
Limits
Max.
1.0
1.0
0.8
0.5
-80
60
40
—
—
—
—
—
—
—
—
—
mV/°C
Units
kHz
mV
mV
mA
mA
µA
µA
µA
µA
%
%
V
A
V
V
V
3