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SC1452XIMSTR Scheda tecnica(PDF) 11 Page - Semtech Corporation

Il numero della parte SC1452XIMSTR
Spiegazioni elettronici  Dual 150mA LDO Regulator with Programmable Reset
PDF  15 Pages
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Produttore elettronici  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1452XIMSTR Scheda tecnica(HTML) 11 Page - Semtech Corporation

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 2006 Semtech Corp.
www.semtech.com
SC1452
POWER MANAGEMENT
Typical Characteristics (Cont.)
Bypass Start-up Rise Time vs. Junction Temperature
vs. Input Voltage
Reset Threshold Voltage
vs. Junction Temperature
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
-50
-25
0
25
50
75
100
125
TJ (°C)
CBYP = 10nF
VIN = 4V
VIN = 6.5V
88
89
90
91
92
93
94
-50
-25
0
25
50
75
100
125
TJ (°C)
VOUT falling
VOUT rising
Reset Delay Times
vs. Junction Temperature
Delay Source Current and Voltage Threshold
vs. Junction Temperature
0
25
50
75
100
125
150
175
200
-50
-25
0
25
50
75
100
125
TJ (°C)
tRSTA
tRSTB, DLYB = 0V
tRSTB, CDLYB = 10nF
VOUT + 1V ≤ VIN ≤ 6.5V
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
-50
-25
0
25
50
75
100
125
TJ (°C)
1.225
1.230
1.235
1.240
1.245
1.250
1.255
1.260
1.265
1.270
1.275
VOUT + 1V ≤ VIN ≤ 6.5V
VTH(DLYB)
IDLYB
Output Spectral Noise Density vs.
Frequency vs. Output Voltage
Output Spectral Noise Density vs. Frequency
vs. Output Capacitance
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VIN = VOUT + 1V
IOUT = 50mA
CIN = 1µF
CBYP = 10nF
COUT = 2.2µF
TJ = 25°C
Top to bottom:
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
VOUT = 2.5V
VOUT = 1.8V
0.001
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VOUT = 3V
VIN = 4V
IOUT = 50mA
CBYP = 10nF
CIN = 1µF
TJ = 25°C
Left to right:
COUT = 44µF
COUT = 22µF
COUT = 10µF
COUT = 2.2µF



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