LP3907SQX-BJXIX/NOPB National Semiconductor, LP3907SQX-BJXIX/NOPB Datasheet - Page 24
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LP3907SQX-BJXIX/NOPB
Manufacturer Part Number
LP3907SQX-BJXIX/NOPB
Description
1 A&D 6A BUCK 2X 0.3A LDO
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheet
1.LP3907SQ-JXQXNOPB.pdf
(46 pages)
Specifications of LP3907SQX-BJXIX/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
3.3V, 600mA
Voltage/current - Output 3
1.8V, 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
24-WFQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
www.national.com
t
t
t
t
1
2
3
4
Symbol
LP3907 Default Power-Off Sequence
Note: The LP3907 default Power on delays can be reprogrammed at final test to 0, .5, 1, 2, 5, or 10ms. Default setting is the same as the on sequence.
Programmable Delay from EN_T deassertion to V
Programmable Delay from EN_T deassertion to V
Programmable Delay from EN_T deassertion to V
Programmable Delay from EN_T deassertion to V
Description
CC
CC
CC
CC
_Buck1 Off
_Buck2 Off
_LDO1 Off
_LDO2 Off
24
Min
Typ
1.5
2
3
6
Max
30017811
Units
ms
ms
ms
ms