LM5010

更新时间： 2024-11-25 22:31:11

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
19页	449K
描述
High Voltage 1A Step Down Switching Regulator

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LM5010 数据手册

October 2004

LM5010

High Voltage 1A Step Down Switching Regulator

General Description

Features

Input Voltage Range: 8V to 75V

Valley Current Limit At 1.25A

The LM5010 Step Down Switching Regulator features all the

functions needed to implement a low cost, efficient, buck

bias regulator capable of supplying in excess of 1A load

current. This high voltage regulator contains an N-Channel

Buck Switch, and is available in 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 valley current limit detection is

set at 1.25A. Additional features include: V_CCunder-voltage

lockout, thermal shutdown, gate drive under-voltage lockout,

and maximum duty cycle limiter.

Switching Frequency Can Exceed 1 MHz

Integrated N-Channel Buck Switch

Integrated Startup Regulator

No Loop Compensation Required

Ultra-Fast Transient Response

Operating Frequency Remains Constant With Load and

Line Variations

Maximum Duty Cycle Limited During Startup

Adjustable Output Voltage

n Precision 2.5V Feedback Reference

n Thermal shutdown

Typical Applications

High Efficiency Point-Of-Load (POL) Regulator

Non-Isolated Telecommunications Buck Regulator

Secondary High Voltage Post Regulator

n Automotive Systems

Package

n LLP-10 (4 mm x 4 mm)

n TSSOP-14EP

n Both Packages Have Exposed Thermal Pad For

Improved Heat Dissipation

20119943

Basic Stepdown Regulator

DS201199

www.national.com

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与LM5010相关器件

型号	品牌	获取价格	描述	数据表
LM5010A	TI	获取价格	High-Voltage 1-A Step-Down Switching Regulator
LM5010A	NSC	获取价格	High Voltage 1A Step Down Switching Regulator
LM5010A_14	TI	获取价格	High-Voltage 1-A Step-Down Switching Regulator
LM5010AHMH	NSC	获取价格	High Voltage 1A Step Down Switching Regulator
LM5010AHMHX	NSC	获取价格	High Voltage 1A Step Down Switching Regulator
LM5010AMH	NSC	获取价格	High Voltage 1A Step Down Switching Regulator
LM5010AMH/NOPB	TI	获取价格	High-Voltage 1-A Step-Down Switching Regulator
LM5010AMHE/NOPB	TI	获取价格	High-Voltage 1-A Step-Down Switching Regulator
LM5010AMHX	TI	获取价格	High-Voltage 1-A Step-Down Switching Regulator
LM5010AMHX	NSC	获取价格	High Voltage 1A Step Down Switching Regulator