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SC905A Datasheet(PDF) 4 Page - Semtech Corporation

Part # SC905A
Description  CDMA Cellular Phone Power Management IC
PDF  23 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC905A Datasheet(HTML) 4 Page - Semtech Corporation

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© 2006 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC905A
Parameter
Symbol
Condition
Min
Typ
Max
Units
LDO Regulator (TX) - 150mA
Output Voltage Accuracy(4)
∆V
OUT
2.75V ≤ V
OUT ≤ 3.10V, IOUT = 1mA,
V
OUT +0.35V ≤ VIN ≤ 5.5V
-75
+75
mV
Current Limit
I
LIM
V
TX = 0V
250
650
mA
Default At Start-Up: OFF
V
OUT
3.05
V
Line Regulation
REG
LINE
I
OUT = 1mA, VOUT +0.35V < VIN < 5.5V
2.5
12
mV
Load Regulation
REG
LOAD
1mA < I
OUT < 150mA
-3
-20
mV
Dropout Voltage
V
DO
V
OUT = 3.10V, IOUT = 150mA
200
250
mV
Power Supply Rejection Ratio
PSRR
TX
f = 10Hz - 1kHz, C
OUT = 1μF, IOUT = 50mA
65
dB
Output Voltage Noise
e
n
f = 10Hz - 100kHz, I
OUT = 50mA,
C
BP = 0.1μF, COUT = 1μF
45
μV
RMS
LDO Regulator (RX) - 150mA
Output Voltage Accuracy(4)
∆V
OUT
2.75V ≤ V
OUT ≤ 3.10V, IOUT = 1mA,
V
OUT +0.35V ≤ VIN ≤ 5.5V
-75
+75
mV
Current Limit
I
LIM
V
RX = 0V
250
650
mA
Default At Start-Up: OFF
V
OUT
3.05
V
Line Regulation
REG
LINE
I
OUT = 1mA, VOUT+0.35V < VIN < 5.5V
2.5
12
mV
Load Regulation
REG
LOAD
1mA < I
OUT < 150mA
-3
-20
mV
Dropout Voltage
V
DO
V
OUT = 3.10V, IOUT = 150mA
200
250
mV
Power Supply Rejection Ratio
PSRR
RX
f = 10Hz - 1kHz, C
OUT = 1μF, IOUT = 50mA
65
dB
Output Voltage Noise
e
n
f = 10Hz - 100kHz, I
OUT = 50mA,
C
BP= 0.1μF, COUT = 1μF
45
μV
RMS
LDO Regulator (CAM) - 100mA
Output Voltage Accuracy(3)
∆V
OUT
1.75V ≤ V
OUT ≤ 3.30V, IOUT = 1mA
V
OUT +0.35V ≤ VIN ≤ 5.5V
-75
+75
mV
Current Limit
I
LIM
V
CAM = 0V
250
650
mA
Default At Start-Up: OFF
V
OUT
2.20
V
Line Regulation
REG
LINE
I
OUT = 1mA, VOUT +0.35V < VIN < 5.5V
2.5
12
mV
Load Regulation
REG
LOAD
1mA < I
OUT < 100mA
-3
-20
mV
Dropout Voltage
V
DO
V
OUT = 3.30V, IOUT = 100mA
200
250
mV
Power Supply Rejection Ratio
PSRR
CAM
f = 10Hz - 1kHz, C
OUT = 1μF, IOUT = 50mA
50
dB
LDO Regulator (PLL) - 80mA
Output Voltage Accuracy(4)
∆V
OUT
2.75V ≤ V
OUT ≤ 3.10V, IOUT = 1mA,
V
OUT +0.35V ≤ VIN ≤ 5.5V
-75
+75
mV
Current Limit
I
LIM
V
PLL = 0V
250
650
mA
Electrical Characteristics (Cont.)



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