SC900A Ver la hoja de datos (PDF) - Semtech Corporation
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fabricante
SC900A Datasheet PDF : 23 Pages
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SC900A
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Symbol
Conditions
Min Typ Max Units
LDO Regulator B (DIGITAL I/O SUPPLY) (Cont.)
Default Setting: ON
VOB
Line Regulation at 2.8V
LINEREGB IOUT = 1mA, VOUT + 0.15V < VIN < 5.5V
Load Regulation at 2.8V
LOADREGB
1mA < IOUT <150mA
Dropout Voltage
Power Supply Rejection Ratio
VDB
PSRRB
Output Voltage Noise(2)
en-B
VOUT = 3.0V, IOUT = 150mA
f = 10Hz - 1kHz, CBYP = 0.1μF,
IOUT = 50mA,
2.5V ≤ VOUT ≤ 3.0V
f = 10Hz - 100kHz, IOUT = 50mA,
CVREF = 0.1μF, COUT = 2.2μF,
2.5V ≤ VOUT ≤ 3.0V
LDO Regulator C
2.80
mV
2.5 12
mV
-3
20
mV
150 190
mV
60
dB
45
μVRMS
Output Voltage Accuracy
Output Voltage Accuracy at
2.90V (DAC = 10111)
Maximum Output Current
VOAC
VOASC
IOMAXC
1.75V ≤ VOUT ≤ 3.30V
VOUT + 0.15V ≤ VIN ≤ 5.5V
-3
IOUT = 1mA, TA = 25°C
IOUT = 1mA
-2
VOUT + 0.5V ≤ VIN ≤ 5.5V,
IOUT = 150mA
-3.5
150
Default Setting: ON
VOC
Line Regulation at 2.90V
LINEREGC IOUT = 1mA, VOUT + 0.15V < VIN < 5.5V
Load Regulation at 2.90V
LOADREGC
1mA < IOUT <150mA
Dropout Voltage
Power Supply Rejection Ratio
VDC
PSRRC
Output Voltage Noise(2)
en-C
LDO Regulator D
VOUT = 3.3V, IOUT = 150mA
f = 10Hz - 1kHz, CBYP = 0.1μF,
IOUT = 50mA,
2.5V ≤ VOUT ≤ 3.3V
f = 10Hz - 100kHz, IOUT = 50mA,
CVREF = 0.1μF, COUT = 2.2μF,
2.5V ≤ VOUT ≤ 3.3V
Output Voltage Accuracy
Output Voltage Accuracy at
3.10V (DAC = 10111)
© 2005 Semtech Corp.
VOAD
VOASD
1.75V ≤ VOUT ≤ 3.30V
VOUT + 0.15V ≤ VIN ≤ 5.5V
-3
IOUT = 1mA, TA = 25°C
IOUT = 1mA
-2
VOUT + 0.5V ≤ VIN ≤ 5.5V,
IOUT = 150mA
-3.5
4
2.90
2.5
-3
150
60
55
+3
%
+2
%
+3.5
%
mA
V
12
mV
-20
mV
190
mV
dB
μVRMS
+3
%
+2
%
+3.5
%
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