SC905A データシートの表示（PDF） - Semtech Corporation
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SC905A Datasheet PDF : 23 Pages
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SC905A
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
LDO Regulator (TX) - 150mA
Symbol
Output Voltage Accuracy(4)
Current Limit
Default At Start-Up: OFF
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
Output Voltage Noise
LDO Regulator (RX) - 150mA
∆VOUT
ILIM
VOUT
REGLINE
REGLOAD
VDO
PSRRTX
en
Output Voltage Accuracy(4)
Current Limit
Default At Start-Up: OFF
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
∆VOUT
ILIM
VOUT
REGLINE
REGLOAD
VDO
PSRRRX
Condition
2.75V ≤ VOUT ≤ 3.10V, IOUT = 1mA,
VOUT +0.35V ≤ VIN ≤ 5.5V
VTX = 0V
IOUT = 1mA, VOUT +0.35V < VIN < 5.5V
1mA < IOUT < 150mA
VOUT = 3.10V, IOUT = 150mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
f = 10Hz - 100kHz, IOUT = 50mA,
CBP = 0.1μF, COUT = 1μF
2.75V ≤ VOUT ≤ 3.10V, IOUT = 1mA,
VOUT +0.35V ≤ VIN ≤ 5.5V
VRX = 0V
IOUT = 1mA, VOUT+0.35V < VIN < 5.5V
1mA < IOUT < 150mA
VOUT = 3.10V, IOUT = 150mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
Output Voltage Noise
en
LDO Regulator (CAM) - 100mA
Output Voltage Accuracy(3)
Current Limit
Default At Start-Up: OFF
Line Regulation
Load Regulation
Dropout Voltage
Power Supply Rejection Ratio
LDO Regulator (PLL) - 80mA
∆VOUT
ILIM
VOUT
REGLINE
REGLOAD
VDO
PSRRCAM
Output Voltage Accuracy(4)
Current Limit
∆VOUT
ILIM
f = 10Hz - 100kHz, IOUT = 50mA,
CBP= 0.1μF, COUT = 1μF
1.75V ≤ VOUT ≤ 3.30V, IOUT = 1mA
VOUT +0.35V ≤ VIN ≤ 5.5V
VCAM = 0V
IOUT = 1mA, VOUT +0.35V < VIN < 5.5V
1mA < IOUT < 100mA
VOUT = 3.30V, IOUT = 100mA
f = 10Hz - 1kHz, COUT = 1μF, IOUT = 50mA
2.75V ≤ VOUT ≤ 3.10V, IOUT = 1mA,
VOUT +0.35V ≤ VIN ≤ 5.5V
VPLL = 0V
Min
-75
250
-75
250
-75
250
-75
250
Typ
3.05
2.5
-3
200
65
45
3.05
2.5
-3
200
65
45
2.20
2.5
-3
200
50
Max
+75
650
12
-20
250
+75
650
12
-20
250
+75
650
12
-20
250
+75
650
Units
mV
mA
V
mV
mV
mV
dB
μVRMS
mV
mA
V
mV
mV
mV
dB
μVRMS
mV
mA
V
mV
mV
mV
dB
mV
mA
© 2006 Semtech Corp.
4
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