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ST1534AP2T Fiches technique(PDF) 3 Page - STMicroelectronics

No de pièce ST1534AP2T
Description  500mA SMART LDO
Download  15 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1534AP2T Fiches technique(HTML) 3 Page - STMicroelectronics

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ST1534A
3/15
TYPICAL APPLICATION CIRCUIT
ELECTRICAL CHARACTERISTICS (Tj =25°C, VI=5V, VAUX=3.3V, IO=10mA, CO =2.2µF,
unless otherwise specified)
Note 1: Guaranteed by design
Note 2: See timing diagram
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Input Voltage Range
4.5
5
5.5
V
IIN
Input Supply Current
VI ≥ 4.5V
IO = 0mA
VAUX =0V
11
mA
VI ≥ 4.5V
IO = 0mA
VAUX = 3.3V
11
mA
VI < 4.1V
IO = 0mA
VAUX =0V
2
mA
VI < 4.1V
IO = 0mA
VAUX = 3.3V
2
mA
IAUX
Auxliary Supply Current
VI = 0 V
2.2
mA
VI = 5V
200
µA
3.3V VOLTAGE REGULATOR BLOCK
VO
Output Voltage
Tj = 0 to 85 °C
3.18
3.3
3.42
V
∆V
O
Line Regulation
VI = 4.5 to 5.5V
0.04
0.5
%
∆V
O
Load Regulation
IO = 0 to 500mA
0.1
1
%
Vd
Dropout Voltage
IO = 500 mA Tj = 0 to 85 °C
1.15
V
IO
Output Current Limit
Tj =0to 85°C
550
mA
5V DETECT BLOCK
VTHL
Low Threshold Voltage
VI falling,
IO = 500 mA Tj = 0 to 85 °C
4.15
4.3
V
VHYST Hysteresis
70
200
mV
DRIVE OUTPUT BLOCK
VDR
Drive Output Voltage
VI = 4.5 to 5.5V
IDR =200 µA
3.6
VIN-0.8
V
VI < 4.15V
IDR =200 µA
100
200
mV
IDR
Drive Current
Sinking: VI = 4.15V
VDR = 1V
7
20
mA
Sourcing: VI = 4.5V
VI -VDR = 2V
7
25
mA
tDH
Drive High Delay (Note 1
and 2)
CDR = 1.2nF, VIN ramping up, measured
from VI =VTH(H) to VDR = 3.3V
Tj =0to 85°C
25
µs
tDL
Drive Low Delay (Note 1
and 2)
CDR = 1.2nF, VIN ramping down, measured
from VI =VTH(L) to VDR = 200mV
Tj =0to 85°C
36
µs
IN
GND
OUT
DR
4.7 µF
0.1 µF
5V
3.3V
10 µF
0.1 µF
Vout=3.3V
0.1 µF
AUX


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