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LM2695 Datasheet

High Voltage Step Down Switching Regulator

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January 2006
LM2695
High Voltage (30V, 1.25A) Step Down Switching
Regulator
General Description
The LM2695 Step Down Switching Regulator features all of
the functions needed to implement a low cost, efficient, buck
bias regulator capable of supplying 1.25A to the load. This
buck regulator contains a 33V N-Channel Buck Switch, and
is available in the thermally enhanced LLP-10 and TSSOP-
14EP packages. The hysteretic regulation scheme requires
no loop compensation, results in fast load transient re-
www.DataSshpeoenst4eU, .acnodmsimplifies circuit implementation. The operating
frequency remains constant with line and load variations due
to the inverse relationship between the input voltage and the
on-time. The current limit detection is set at 1.25A. Additional
features include: VCC under-voltage lockout, thermal shut-
down, gate drive under-voltage lockout, and maximum duty
cycle limiter.
Features
n Integrated 33V, N-Channel buck switch
n Integrated start-up regulator
n Input Voltage Range: 8V to 30V
n No loop compensation required
n Ultra-Fast transient response
n Operating frequency remains constant with load current
and input voltage
n Maximum Duty Cycle Limited During Start-Up
n Adjustable output voltage
n Valley Current Limit At 1.25A
n Precision internal reference
n Low bias current
n Highly efficient operation
n Thermal shutdown
Typical Applications
n High Efficiency Point-Of-Load (POL) Regulator
n Non-Isolated Telecommunication Buck Regulator
n Secondary High Voltage Post Regulator
Package
n LLP-10 (4 mm x 4 mm)
n TSSOP-14EP
n Exposed Thermal Pad For Improved Heat Dissipation
Basic Step Down Regulator
© 2006 National Semiconductor Corporation DS201704
20170431
www.national.com


National Semiconductor Electronic Components Datasheet

LM2695 Datasheet

High Voltage Step Down Switching Regulator

No Preview Available !

Connection Diagrams
20170432
14-Lead TSSOP(EP)
www.DataSheetO4Ur.cdomering Information
Order Number
LM2695SD
LM2695SDX
LM2695MH
LM2695MHX
Package Type
LLP-10 (4x4)
LLP-10 (4x4)
TSSOP-14EP
TSSOP-14EP
NSC Package
Drawing
SDC10A
SDC10A
MXA14A
MXA14A
10-Lead LLP
20170402
Junction Temperature
Range
−40˚C to + 125˚C
−40˚C to + 125˚C
−40˚C to + 125˚C
−40˚C to + 125˚C
Supplied As
1000 Units on Tape and Reel
4500 Units on Tape and Reel
94 Units in Rail
2500 Units on Tape and Reel
www.national.com
2


Part Number LM2695
Description High Voltage Step Down Switching Regulator
Maker National Semiconductor
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LM2695 Datasheet PDF






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