LP8720TLX/NOPB National Semiconductor, LP8720TLX/NOPB Datasheet - Page 7

• Manufacturer Part Number: LP8720TLX/NOPB
• Description: IC REG BUCK 5-LDO I2C 20USMD
• Manufacturer: National Semiconductor

Specifications of LP8720TLX/NOPB

• Topology: Step-Down (Buck) Synchronous (1), Linear (LDO) (5)
• Function: Any Function
• Number Of Outputs: 6
• Frequency - Switching: 2MHz
• Voltage/current - Output 1: 0.8 V ~ 2.3 V, 400mA
• Voltage/current - Output 2: 1.2 V ~ 3.3 V, 300mA
• Voltage/current - Output 3: 1.2 V ~ 3.3 V, 300mA
• W/led Driver: No
• W/supervisor: No
• W/sequencer: Yes
• Voltage - Supply: 2.7 V ~ 4.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-MicroSMD
• Voltage - Output: 0.8 ~ 2.3 V
• Voltage - Input: 3 ~ 4.5 V
• Applications: Converter, Power Requirement Solution
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP8720TLX

Start Up Sequence
Default Output Voltages
Note 1) BUCK voltage is 1.2V if DVS=LO and 1.3V if DVS=HI.
DEFSEL
VBATT
GND
Hi-Z
Output
BUCK
LDO1
LDO2
LDO3
LDO4
LDO5
Start Up Sequence
LDO1, 2, 3, 4 enable same time.
LDO5 and BUCK enable via Serial Interface.
LDO3 enable.
LDO1, 2, 4, 5 and BUCK enable via Serial Interface .
LDO1, 2, 3, 4 enable same time.
LDO5 and BUCK enable via Serial Interface.
Max Current [mA]
300
300
300
300
300
400
DEFSEL=VBATT
3.3 OFF
1.0 OFF
3.0 ON
2.6 ON
1.8 ON
1.0 ON
Default output Voltage [V] and default ON/OFF if EN=HI
7
Shut Down Sequence
In reverse order of start up sequence.
In reverse order of start up sequence.
In reverse order of start up sequence.
DEFSEL=GND
1.2/1.3
3.0 OFF
3.0 OFF
2.6 OFF
3.3 OFF
2.6 ON
1)
OFF
DEFSEL=Hi-Z
3.3 OFF
1.2 OFF
2.8 ON
2.6 ON
1.8 ON
1.2 ON
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