LP3907TL-JJ11/NOPB National Semiconductor, LP3907TL-JJ11/NOPB Datasheet - Page 23

• Manufacturer Part Number: LP3907TL-JJ11/NOPB
• Description: IC PMU DUAL DC/DC REG 25USMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Step-Down (Buck)r

Specifications of LP3907TL-JJ11/NOPB

• Topology: Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
• Function: Any Function
• Number Of Outputs: 4
• Frequency - Switching: 2.1MHz
• Voltage/current - Output 1: 1.2V, 1A
• Voltage/current - Output 2: 1.8V, 600mA
• Voltage/current - Output 3: 2.85V, 300mA
• W/led Driver: No
• W/supervisor: No
• W/sequencer: Yes
• Voltage - Supply: 2.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 25-MicroSMD
• Current - Output: 300mA, 600mA, 1A
• Voltage - Output: 1.2V, 1.8V
• Voltage - Input: 2.8 ~ 5.5 V
• Power - Output: 1.43W
• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP3907TL-JJ11TR

t
t
t
t
1
2
3
4
Symbol
LP3907 Default Power-Up Sequence
Power-On Timing Specification
Note: The LP3907 default Power on delays can be reprogrammed at final test or I
Programmable Delay from EN_T assertion to V
Programmable Delay from EN_T assertion to V
Programmable Delay from EN_T assertion to V
Programmable Delay from EN_T assertion to V
Description
CC
CC
CC
CC
_Buck1 On
_Buck2 On
_LDO1 On
_LDO2 On
23
2
C to 1, 1.5, 2, 3, 6, or 11ms.
Min
Typ
1.5
2
3
6
Max
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