LM34910SD datasheet(1/11 Pages) NSC

tên linh kiện	LM34910SD

Giải thích chi tiết về linh kiện	High Voltage (40V, 1.25A) Step Down Switching Regulator

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LM34910

High Voltage (40V, 1.25A) Step Down Switching

Regulator

General Description

The LM34910 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 40V N-Channel Buck Switch, and

is available in the thermally enhanced LLP-10 package. The

hysteretic regulation scheme requires no loop compensa-

tion, 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.

Features

n

Integrated 40V, N-Channel buck switch

n

Integrated start-up regulator

n

Input Voltage Range: 8V to 36V

n

No loop compensation required

n

Ultra-Fast transient response

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Operating frequency remains constant with load current

and input voltage

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Maximum Duty Cycle Limited During Start-Up

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Adjustable output voltage

n

Valley Current Limit At 1.25A

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Precision internal reference

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Low bias current

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Highly efficient operation

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Thermal shutdown

Typical Applications

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High Efficiency Point-Of-Load (POL) Regulator

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Non-Isolated Telecommunication Buck Regulator

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Secondary High Voltage Post Regulator

Package

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LLP-10 (4 mmx4mm)

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Exposed Thermal Pad For Improved Heat Dissipation

Connection Diagram

20110902

10-Lead LLP

Ordering Information

Order Number

Package Type

NSC Package Drawing

Supplied As

LM34910SD

LLP-10 (4x4)

SDC10A

1000 Units on Tape and Reel

LM34910SDX

LLP-10 (4x4)

SDC10A

4500 Units on Tape and Reel

February 2005

DS201109

www.national.com

Số phần tương tự - LM34910SD

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LM34910SD	845Kb / 18P	High Voltage (40V, 1.25A) Step Down Switching Regulator
	LM34910SD/NOPB	845Kb / 18P	High Voltage (40V, 1.25A) Step Down Switching Regulator
	LM34910SD/NOPB	535Kb / 20P	LM34910 High Voltage (40V, 1.25A) Step Down Switching Regulator REVISED MARCH 2013
	LM34910SD/NOPB.A	535Kb / 20P	LM34910 High Voltage (40V, 1.25A) Step Down Switching Regulator REVISED MARCH 2013
	LM34910SD/NOPB.B	535Kb / 20P	LM34910 High Voltage (40V, 1.25A) Step Down Switching Regulator REVISED MARCH 2013

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Mô tả tương tự - LM34910SD

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LM2695	623Kb / 14P	High Voltage (30V, 1.25A) Step Down Switching Regulator
National Semiconductor ...	LM34910C	270Kb / 12P	High Voltage (50V, 1.25A) Step Down Switching Regulator
Linear Technology	LTC3564	265Kb / 20P	2.25MHz, 1.25A Synchronous Step-Down Regulator
Monolithic Power System...	MP28127	420Kb / 9P	1.25A, 5.5V Synchronous Step-Down Switching Regulator
Texas Instruments	LM34910	874Kb / 17P	High Voltage (40V, 1.25A) Step Down Switching Regulator
Linear Technology	LTC3564	268Kb / 20P	2.25MHz, 1.25A Synchronous Step-Down Regulator
Texas Instruments	LM2695	914Kb / 21P	LM2695 High Voltage (30V, 1.25A) Step Down Switching Regulator
	LM34910	845Kb / 18P	High Voltage (40V, 1.25A) Step Down Switching Regulator
	LM34910C	848Kb / 19P	High Voltage (50V, 1.25A) Step Down Switching Regulator
ON Semiconductor	LV5771QA	222Kb / 12P	Step-down Voltage Switching Regulator May, 2013

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