LP3923_15 Datasheet, PDF (6/37 Pages) Texas Instruments – Cellular Phone Power Management Unit

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
Buck
LDO1
LDO2
LDO3
LDO4
LDO5
LDO6
LDO7
LDO8
Type
LILO
LILO
D
A
A
A
A
D
Current
(mA)
700
300
300
300
80
150
150
150
150
Enable
control
SI
SI
SI
-
TCXO_EN
RX_EN
TX_EN
SI
SI
Input
SEL=BATT
VINB=BATT
VIN1=VBUCK
VIN1=VBUCK
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
Output(V)
2.0 ⁽¹⁾
1.8
1.8
3
3
3
3
3
3
Startup
default
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
Input
SEL=GND
VINB=BATT
VIN1=BATT
VIN1=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
Output(V)
1.8 ⁽¹⁾
3
3
3
3
3
3
3
3
Startup
default
ON
ON
ON
ON
OFF
OFF
OFF
ON
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
Buck
LDO1
LDO2
LDO3
LDO4
LDO5
LDO6
LDO7
LDO8
Type
LILO
LILO
D
A
A
A
A
D
Current
(mA)
700
300
300
300
80
150
150
150
150
Enable
control
SI
SI
SI
-
TCXO_EN
RX_EN
TX_EN
SI
SI
Input
SEL=BATT
VINB=BATT
VIN1=VBUCK
VIN1=VBUCK
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
Output(V)
2.0 ⁽¹⁾
1.8
1.8
3
3
3
3
3
3
Startup
default
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
Input
SEL=GND
VINB=BATT
VIN1=BATT
VIN1=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
VIN2=BATT
Output(V)
1.8 ⁽¹⁾
3
3
3
3
3
3
3
3
Startup
default
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
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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