LM2695 High Voltage (30V, 1.25A) Step Down Switching Regulator

Part Number(s) (NSID)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM2695MH/NOPB LM2695MH	TSSOP EXP PAD	14	1 1	260 260	Detail	Download	N/A	NSUZXYTT L2695 MH
LM2695MHX/NOPB LM2695MHX	TSSOP EXP PAD	14	1 1	260 260	Detail	Download	N/A	NSUZXYTT L2695 MH
LM2695SD/NOPB LM2695SD	LLP	10	1 1	260 260	Detail	Download	N/A	NS UZXYTT L2695SD
LM2695SDX/NOPB LM2695SDX	LLP	10	1 1	260 260	Detail	Download	N/A	NS UZXYTT L2695SD

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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 response, and simplifies 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 shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.

Applications

•	High Efficiency Point-Of-Load (POL) Regulator
•	Non-Isolated Telecommunication Buck Regulator
•	Secondary High Voltage Post Regulator

Features

•	Integrated 33V, N-Channel buck switch
•	Integrated start-up regulator
•	Input Voltage Range: 8V to 30V
•	No loop compensation required
•	Ultra-Fast transient response
•	Operating frequency remains constant with load current and input voltage
•	Maximum Duty Cycle Limited During Start-Up
•	Adjustable output voltage
•	Valley Current Limit At 1.25A
•	Precision internal reference
•	Low bias current
•	Highly efficient operation
•	Thermal shutdown

Diagrams

Typical Application click for larger image

Block Diagram *click for larger image