LP3907SQX-BJXIX/NOPB National Semiconductor, LP3907SQX-BJXIX/NOPB Datasheet - Page 36
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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
BUCK2 RAMP CONTROL REGISTER (B2RC) - 0x2B
This register allows the user to program the rate of change between the target voltages of Buck2.
Name
Access
Data
Reset
Reserved
- - - -
- - - -
D7
0
Reserved
D6-4
- - - -
- - - -
010
36
Data Code
4h'B - 4h'F
4h'0
4h'1
4h'2
4h'3
4h'4
4h'5
4h'6
4h'7
4h'8
4h'9
4h'A
B2RS
D3-0
1000
R/W
Ramp Rate mV/us
Instant
10
10
1
2
3
4
5
6
7
8
9