LP3907SQX-PJXIX/NOPB National Semiconductor, LP3907SQX-PJXIX/NOPB Datasheet - Page 34
![IC BUCK SYNC 1.2V/3.3V 24LLP](/photos/6/54/65470/pkg_sqa24a_sml.jpg)
LP3907SQX-PJXIX/NOPB
Manufacturer Part Number
LP3907SQX-PJXIX/NOPB
Description
IC BUCK SYNC 1.2V/3.3V 24LLP
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
Step-Down (Buck)r
Datasheet
1.LP3907SQ-JXQXNOPB.pdf
(46 pages)
Specifications of LP3907SQX-PJXIX/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-LLP
Current - Output
300mA, 600mA, 1A
Voltage - Output
1.2V, 3.3V
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
LP3907SQX-PJXIX
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LP3907SQX-PJXIX/NOPB
Manufacturer:
LINEAR
Quantity:
6 455
www.national.com
BUCK1 RAMP CONTROL REGISTER (B1RC) - 0x25
This register allows the user to program the rate of change between the target voltages of Buck1.
Name
Access
Data
Reset
Reserved
- - - -
- - - -
D7
0
Reserved
D6-4
- - - -
- - - -
010
34
Data Code
4h'B - 4h'F
4h'8
4h'A
4h'0
4h'1
4h'2
4h'3
4h'4
4h'5
4h'6
4h'7
4h'9
B1RS
D3-0
1000
R/W
Ramp Rate mV/us
Instant
10
10
1
2
3
4
5
6
7
8
9