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LP3923 Datasheet(PDF) 6 Page - Texas Instruments

Part # LP3923
Description  Cellular Phone Power Management Unit
Download  37 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP3923 Datasheet(HTML) 6 Page - Texas Instruments

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LP3923
SNVS567B – APRIL 2010 – REVISED MAY 2013
www.ti.com
Table 2. LDOs and Buck Default Voltages (for options LP3923TL/X and LP3923TL/X-VI)
Device
Type
Current
Enable
Input
Output(V)
Startup
Input
Output(V)
Startup
(mA)
control
default
default
SEL=BATT
SEL=GND
Buck
700
SI
VINB=BATT
2.0(1)
ON
VINB=BATT
1.8(1)
ON
LDO1
LILO
300
SI
VIN1=VBUCK
1.8
ON
VIN1=BATT
3
ON
LDO2
LILO
300
SI
VIN1=VBUCK
1.8
ON
VIN1=BATT
3
ON
LDO3
D
300
-
VIN2=BATT
3
ON
VIN2=BATT
3
ON
LDO4
A
80
TCXO_EN
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
LDO5
A
150
RX_EN
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
LDO6
A
150
TX_EN
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
LDO7
A
150
SI
VIN2=BATT
3
ON
VIN2=BATT
3
ON
LDO8
D
150
SI
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
(1)
Voltage is set by the external resistors.
Table 3. LDOs and Buck Default Voltages (for options LP3923TL/X-VB and LP3923TL/X-VC)
Device
Type
Current
Enable
Input
Output(V)
Startup
Input
Output(V)
Startup
(mA)
control
default
default
SEL=BATT
SEL=GND
Buck
700
SI
VINB=BATT
2.0(1)
ON
VINB=BATT
1.8(1)
ON
LDO1
LILO
300
SI
VIN1=VBUCK
1.8
ON
VIN1=BATT
3
OFF
LDO2
LILO
300
SI
VIN1=VBUCK
1.8
ON
VIN1=BATT
3
OFF
LDO3
D
300
-
VIN2=BATT
3
ON
VIN2=BATT
3
ON
LDO4
A
80
TCXO_EN
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
LDO5
A
150
RX_EN
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
LDO6
A
150
TX_EN
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
LDO7
A
150
SI
VIN2=BATT
3
ON
VIN2=BATT
3
ON
LDO8
D
150
SI
VIN2=BATT
3
OFF
VIN2=BATT
3
OFF
(1)
Voltage is set by the external resistors.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
6
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Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: LP3923


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