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ST2L01 датащи(PDF) 4 Page - STMicroelectronics

номер детали ST2L01
подробное описание детали  DUAL VOLTAGE REGULATOR
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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ST2L01 датащи(HTML) 4 Page - STMicroelectronics

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ST2L01
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ELECTRICAL CHARACTERISTICS OF OUTPUT 2 (VI=5V, IO2=10mA Tj = 0 to 125°C unless otherwise
specified. Typical values are referred at Tj = 25°C, CI = 1µF (Tantalum), CO1 = CO1 =1µF (X7R). Refer to
"Typical Application Circuit "figure with R1=R2=120Ω".
Note 1: Low duty cycle pulse testing with Kelvin connections are required in order to maintain accurate data
Note 2: Dropout Voltage is defined as the minimum differential voltage between VI and VO required to mantain regulation at VO. It is measured
when the output voltage drops 1% below its nominal value.
Note 3: Transient response is defined with a step change in load from 10mA to 500mA as the time from the load step until the output voltage
reaches it’s minimum value.
Note 4: Minimum load current is defined as the minimum current required at the output in order for the output voltage to maintain regulation.
Note 5: Guaranteed by design, not tested in production.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Operating Input Voltage
IO2 =5mA to 1A
Tj = 0 to 125°C
4.5
V
VO2
Output Voltage 2
Tj = 25°C
2.45
2.5
2.55
V
VREF
Reference Voltage
(measured between pins 4
and 2)
Tj = 25°C
1.225
1.25
1.275
V
IO1 = 5mA to 1A
VI = 4.75 to 5.25V
Tj = 0 to 125°C
1.2125
1.25
1.2875
∆V
O2
Line Regulation 2
VI = 4.75 to 5.25V
0.004
0.2
%
∆V
O2
Load Regulation 2
IO = 0.01 to 1A
(Note 1)
0.08
0.4
%
VD2
Dropout Voltage 2
IO = 1A
Tj = 0 to 125°C
(Note 2)
1.1
1.3
V
tTR
Transient Response
IO = 10 to 500mA trise = tfall = 1µs
(Note 3, 5)
<1
µs
ISC2
Current Limit 2
RL = 0
Tj = 0 to 125°C
1
A
IO2
Minimum Load Current 2
Tj = 0 to 125°C
(Note 4)
1
mA
IADJ
Adjust Pin Current
Tj = 0 to 125°C
35
120
µA
∆I
ADJ
Adjust Pin Current
IO1 = 5mA to 1A
VI = 4.75 to 5.25V
Tj = 0 to 125°C
05
µA
SVR2
Supply Voltage Rejection
VI = 5 ±0.25V
IO1 = 100 mA
Tj = 0 to 125°C
(Note 5)
fI = 100Hz
70
77
dB
fI = 1KHz
70
80
fI = 10KHz
50
65
fI = 100KHz
30
43
Thermal Regulation 2
IO = 1A,
tPULSE = 30ms (Note 5)
0.1
%/W
eN2
Output Noise 1
B= 10Hz to 10KHz
(Note 5)
30
µVrms
∆V
REF
Temperature Stability
Tj = 0 to 125°C (Note 5)
0.5
%VO
∆V
REF
Long Term Stability
Tj = 125°C, 1000Hrs (Note 5)
0.3
%VO


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