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PDF LP3923 Data sheet ( Hoja de datos )
| Número de pieza | LP3923 | |
| Descripción | Cellular Phone Power Management Unit | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LP3923 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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LP3923
LP3923 Cellular Phone Power Management Unit
Literature Number: SNVS567A
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
Order Number
LP3923TL-VC
LP3923TLX-VC
PWR_ON
Pin
Level
Sensitive
Level
Sensitive
HF_PWR
Pin in
Standby
Level
Sensitive
Level
Sensitive
VFULL_
RATE
3.0V
3.0V
Default
Charging
Current
100mA
100mA
Charger
LDO
Mode
Disabled
Disabled
PS_HOLD
Startup
Yes
Yes
LDO 1 and
LDO2 Startup
condition with
SEL=GND
Off by default
3.0V
Off by default
3.0V
Product
ID
V026
V026
Supplied as
250 Tape &
Reel
3000 Tape &
Reel
www.national.com
4
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LDO4 (A-Type) Electrical Characteristics
Unless otherwise noted, VIN=VIN2=BATT=3.6V, GND = 0V, CV!N1-2 = 10 µF, CLDOx= 1 µF, TCXO_EN high. Note VINMIN is the
greater of 3.0V or VOUT +0.5V. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in bold-
face type apply over the entire junction temperature range for operation, TA = TJ = −40°C to +125°C. (Note 6)
Symbol
Parameter
Conditions
Typical
Limit
Min Max
Units
VOUT
Output Voltage
Accuracy
IOUT = 1 mA, VOUT = 3.0V
−2 +2
%
−3 +3
Default Output Voltage
3.0 V
IOUT Output Current
VINMIN ≤ VIN ≤ 5.5V
Output Current Limit VOUT = 0V
VDO Dropout Voltage IOUT =80 mA
(Note 7, Note 8)
80
mA
400
60 85 mV
ΔVOUT
eN
PSRR
tSTART-UP
Line Regulation
Load Regulation
Output Noise Voltage
Power Supply Ripple
Rejection Ratio
Start-Up Time from
Shut-down
VINMIN + ≤ VIN ≤ 5.5V, IOUT = 1 mA
1 mA ≤ IOUT ≤ 80 mA
10 Hz ≤ f ≤ 100 kHz,
COUT = 1 µF (Note 7)
F = 10 kHz,
COUT = 1 µF, IOUT = 20 mA (Note 7)
COUT = 1 µF, IOUT = 80 mA (Note 7)
1
5
10
75
35
mV
µVRMS
dB
µs
TTransient
Start-Up Transient
Overshoot
COUT = 1 µF, IOUT = 80 mA (Note 7)
30 mV
LDO5, LDO6, LDO7 (A-Type) Electrical Characteristics
Unless otherwise noted, VIN=VIN2=BATT=3.6V, GND = 0V, CV!N1-2 = 10 µF, CLDOx= 1 µF, RX_EN, TX_EN high. Note VINMIN is the
greater of 3.0V or VOUT +0.5V. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in bold-
face type apply over the entire junction temperature range for operation, TA = TJ = −40°C to +125°C. (Note 6)
Symbol
Parameter
Conditions
Typical
Limit
Min Max
Units
VOUT
Output Voltage
Accuracy
IOUT = 1 mA, VOUT = 3.0V
−2 +2
%
−3 +3
Default Output Voltage
3.0 V
IOUT
VDO
ΔVOUT
eN
PSRR
Output Current
Output Current Limit
Dropout Voltage
Line Regulation
Load Regulation
Output Noise Voltage
Power Supply Ripple
Rejection Ratio
VINMIN ≤ VIN ≤ 5.5V
VOUT = 0V
IOUT = 150 mA (Note 7, Note 8)
VINMIN ≤ VIN ≤ 5.5V
IOUT = 1 mA
1 mA ≤ IOUT ≤ 150 mA
10 Hz ≤ f ≤ 100 kHz,
COUT = 1 µF (Note 7)
F = 10 kHz, COUT = 1 µF, IOUT = 20 mA (Note 7)
400
100
1
5
10
75
150 mA
150 mV
mV
µVRMS
dB
tSTART-UP Start-Up Time from
Shut-down
COUT = 1 µF, IOUT = 150 mA (Note 7)
35
µs
TTransient Start-Up Transient
Overshoot
COUT = 1 µF, IOUT = 150 mA (Note 7)
30 mV
www.national.com
10
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LP3923.PDF ] | |
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