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SC905A Datasheet(PDF) 3 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) 3 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 (CORE) - 300mA (Cont.)
Line Regulation
REG
LINE
I
OUT = 1mA, VOUT +0.35V < VIN < 5.5V
2.5
12
mV
Load Regulation
REG
LOAD
1mA < I
OUT < 300mA
-3
-30
mV
Dropout Voltage
V
DO
V
OUT = 2.90V, IOUT = 300mA
300
350
mV
Power Supply Rejection Ratio
PSRR
CORE
f = 10Hz - 1kHz, C
OUT = 1μF, IOUT = 50mA
50
dB
LDO Regulator (PAD) - 300mA
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
PAD = 0V
350
900
mA
Default at Start-Up: ON
V
OUT-HI
VPSEL - High
3.00
V
V
OUT-LO
VPSEL - Low
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 < 300mA
-3
-30
mV
Dropout Voltage
V
DO
V
OUT = 3.30V, IOUT = 300mA
300
350
mV
Power Supply Rejection Ratio
PSRR
PAD
f = 10Hz - 1kHz, C
OUT = 1μF, IOUT = 50mA
50
dB
LDO Regulator (ANA) - 200mA
Output Voltage Accuracy(4)
∆V
OUT
2.55V ≤ V
OUT ≤ 2.90V, IOUT = 1mA,
V
OUT +0.35V ≤ VIN ≤ 5.5V
-75
+75
mV
Current Limit
I
LIM
V
ANA = 0V
250
650
mA
Default At Start-Up: ON
V
OUT
2.60
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 < 200mA
-3
-20
mV
Dropout Voltage
V
DO
V
OUT = 2.90V, IOUT = 200mA
200
250
mV
Power Supply Rejection Ratio
PSRR
ANA
f = 10Hz - 1kHz, C
OUT = 1μF, IOUT = 50mA
65
dB
Output Voltage Noise
e
n
f = 10Hz to 100kHz, I
OUT = 50mA,
C
BP = 0.1μF, COUT = 1μF
45
μV
RMS
LDO Regulator (TCXO) - 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
TCXO = 0V
250
650
mA
Default At Start-Up: ON
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 < 80mA
-3
-20
mV
Dropout Voltage
V
DO
V
OUT = 3.10V, IOUT = 80mA
200
250
mV
Power Supply Rejection Ratio
PSRR
TCXO
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
Electrical Characteristics (Cont.)



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