ST1534A Просмотр технического описания (PDF) - STMicroelectronics
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ST1534A Datasheet PDF : 15 Pages
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TYPICAL APPLICATION CIRCUIT
ST1534A
3.3V
5V
4.7 µF
0.1 µF
0.1 µF
AUX
DR
IN
GND OUT
0.1 µF
10 µF
Vout=3.3V
ELECTRICAL CHARACTERISTICS (Tj = 25°C, VI=5V, VAUX=3.3V, IO=10mA, CO = 2.2µF,
unless otherwise specified)
Symbol
Parameter
Test Conditions
VI Input Voltage Range
IIN Input Supply Current
VI ≥ 4.5V
VI ≥ 4.5V
VI < 4.1V
VI < 4.1V
IAUX Auxliary Supply Current
VI = 0 V
VI = 5V
3.3V VOLTAGE REGULATOR BLOCK
IO = 0mA
IO = 0mA
IO = 0mA
IO = 0mA
VAUX = 0V
VAUX = 3.3V
VAUX = 0V
VAUX = 3.3V
VO Output Voltage
∆VO Line Regulation
∆VO Load Regulation
Vd Dropout Voltage
IO Output Current Limit
5V DETECT BLOCK
Tj = 0 to 85 °C
VI = 4.5 to 5.5V
IO = 0 to 500mA
IO = 500 mA Tj = 0 to 85 °C
Tj = 0 to 85 °C
VTHL Low Threshold Voltage
VHYST Hysteresis
DRIVE OUTPUT BLOCK
VI falling, IO = 500 mA Tj = 0 to 85 °C
VDR Drive Output Voltage
IDR Drive Current
tDH Drive High Delay (Note 1
and 2)
tDL Drive Low Delay (Note 1
and 2)
VI = 4.5 to 5.5V IDR = 200 µA
VI < 4.15V
IDR = 200 µA
Sinking: VI = 4.15V
VDR = 1V
Sourcing: VI = 4.5V
VI - VDR = 2V
CDR = 1.2nF, VIN ramping up, measured
from VI = VTH(H) to VDR = 3.3V
Tj = 0 to 85 °C
CDR = 1.2nF, VIN ramping down, measured
from VI = VTH(L) to VDR = 200mV
Tj = 0 to 85 °C
Note 1: Guaranteed by design
Note 2: See timing diagram
Min.
4.5
3.18
550
4.15
70
3.6
7
7
Typ.
5
11
11
2
2
2.2
200
Max.
5.5
3.3 3.42
0.04 0.5
0.1
1
1.15
4.3
200
VIN-0.8
100 200
20
25
2
5
3
6
Unit
V
mA
mA
mA
mA
mA
µA
V
%
%
V
mA
V
mV
V
mV
mA
mA
µs
µs
3/15
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