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LP3941A Datasheet(PDF) 10 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LP3941A
Description  Cellular Phone Power Management Unit
PDF  32 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP3941A Datasheet(HTML) 10 Page - National Semiconductor (TI)

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V
O8 LDO Electrical Characteristics
Unless otherwise noted, V
IN =VBATT = 3.6V. Typical values and limits appearing in normal type apply for TJ = 25˚C. Limits ap-
pearing in boldface type apply over the entire junction temperature range for operation, −40 to +125˚C. (Notes 2, 8, 9)
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
OUT
Accuracy
Output Voltage
1 mA
≤ I
OUT
≤ 150 mA, V
OUT = 2.7V
3.0V
≤ V
BATT =VIN
≤ 5.5V
−3
±1.0
+3
%
V
OUT
Range
Programmable Output Voltage
Range
0µA
≤ I
OUT
≤ 150 mA
Programming Resolution = 100 mV
2.5
3.0
3.2
V
I
OUT
Output Current
(V
OUT + 0.25V, 3.0V)MAX
≤ V
BATT
V
BATT =VIN
≤ 5.5V
150
mA
Output Current Limit
V
OUT = 0V
510
V
IN–VOUT
Dropout Voltage
I
OUT =75mA
30
173
mV
∆V
OUT
Line Regulation
(V
OUT + 0.25V, 3.0V)MAX
≤ V
BATT
V
BATT =VIN
≤ 5.5V, I
OUT =75mA
3
mV
Load Regulation
V
IN = 3.6V, 1 mA
≤ I
OUT
≤ 150 mA
12
41
e
N
Output Noise Voltage
10 Hz
≤ f ≤ 100 kHz,
C
OUT = 2.2 µF
27
µV
RMS
PSRR
Power Supply Ripple
Rejection Ratio
f = 217 Hz, C
OUT = 2.2 µF
57
dB
I
GND
Ground Current
I
OUT = 100 µA
30
µA
C
OUT
Output Capacitance
Output Capacitor ESR
0µA
≤ I
OUT
≤ 150 mA
220
µF
5
500
m
Ω
t
START-UP
Start-Up Time from Shutdown
C
OUT = 2.2 µF, IOUT = 150 mA (Note
10)
60
µs
V
O9 LDO Electrical Characteristics
Unless otherwise noted, V
IN =VBATT = 3.6V. Typical values and limits appearing in normal type apply for TJ = 25˚C. Limits ap-
pearing in boldface type apply over the entire junction temperature range for operation, −40 to +125˚C. (Notes 2, 8, 9)
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
OUT
Accuracy
Output Voltage
1 mA
≤ I
OUT
≤ 200 mA, V
OUT = 2.2V
3.0V
≤ V
BATT =VIN
≤ 5.5V
−3
±1.0
+3
%
V
OUT
Range
Programmable Output Voltage
Range
0µA
≤ I
OUT
≤ 200 mA
Programming Resolution = 100 mV
1.5
3.0
3.0
V
I
OUT
Output Current
(V
OUT + 0.25V, 3.0V)MAX
≤ V
BATT
V
BATT =VIN
≤ 5.5V
200
mA
Output Current Limit
V
OUT = 0V
770
V
IN–VOUT
Dropout Voltage
I
OUT = 100 mA
50
288
mV
∆V
OUT
Line Regulation
(V
OUT + 0.25V, 3.0V)MAX
≤ V
BATT
V
BATT =VIN
≤ 5.5V, I
OUT = 100 mA
3
mV
Load Regulation
V
IN = 3.6V, 1 mA
≤ I
OUT
≤ 200 mA
15
44
e
N
Output Noise Voltage
10 Hz
≤ f ≤ 100 kHz,
C
OUT = 4.7 µF
27
µV
RMS
PSRR
Power Supply Ripple
Rejection Ratio
f = 217 Hz, C
OUT = 4.7 µF
60
dB
I
GND
Ground Current
I
OUT = 100 µA
30
µA
C
OUT
Output Capacitance
Output Capacitor ESR
1µA
≤ I
OUT
≤ 200 mA
220
µF
5
500
m
Ω
t
START-UP
Start-Up Time from Shutdown
C
OUT = 4.7 µF, IOUT = 200 mA (Note
10)
60
µs
www.national.com
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