LM2586

更新时间： 2024-02-04 20:25:14

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
38页	2090K
描述
LM2586 SIMPLE SWITCHER 3A Flyback Regulator with Shutdown

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LM2586 数据手册

LM2586

www.ti.com

SNVS121D –MAY 1996–REVISED APRIL 2013

LM2586 SIMPLE SWITCHER 3A Flyback Regulator with Shutdown

Check for Samples: LM2586

FEATURES

DESCRIPTION

The LM2586 series of regulators are monolithic

234

•

Requires Few External Components

integrated circuits specifically designed for flyback,

step-up (boost), and forward converter applications.

The device is available in 4 different output voltage

versions: 3.3V, 5.0V, 12V, and adjustable.

•

Family of Standard Inductors and

Transformers

•

NPN Output Switches 3.0A, Can Stand Off 65V

Wide Input Voltage Range: 4V to 40V

Requiring

minimum number of external

components, these regulators are cost effective, and

simple to use. Included in the datasheet are typical

circuits of boost and flyback regulators. Also listed

are selector guides for diodes and capacitors and a

family of standard inductors and flyback transformers

designed to work with these switching regulators.

Adjustable Switching Frequency: 100 kHz to

200 kHz

•

External Shutdown Capability

Draws Less Than 60 μA When Shut Down

Frequency Synchronization

Current-mode Operation for Improved

Transient Response, Line Regulation, and

Current Limit

The power switch is a 3.0A NPN device that can

stand-off 65V. Protecting the power switch are current

and thermal limiting circuits, and an undervoltage

lockout circuit. This IC contains an adjustable

frequency oscillator that can be programmed up to

200 kHz. The oscillator can also be synchronized with

other devices, so that multiple devices can operate at

the same switching frequency.

•

Internal Soft-start Function Reduces In-rush

Current During Start-up

Output Transistor Protected by Current Limit,

Under Voltage Lockout, and Thermal

Shutdown

Other features include soft start mode to reduce in-

rush current during start up, and current mode control

for improved rejection of input voltage and output

load transients and cycle-by-cycle current limiting.

The device also has a shutdown pin, so that it can be

turned off externally. An output voltage tolerance of

±4%, within specified input voltages and output load

conditions, is ensured for the power supply system.

•

System Output Voltage Tolerance of ±4% Max

Over Line and Load Conditions

TYPICAL APPLICATIONS

•

Flyback Regulator

Forward Converter

Multiple-output Regulator

Simple Boost Regulator

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SIMPLE SWITCHER is a registered trademark of Texas Instruments.

Switchers Made Simple, Simple Switcher are registered trademarks of dcl_owner.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...38

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与LM2586相关器件

型号	品牌	获取价格	描述	数据表
LM2586_05	NSC	获取价格	SIMPLE SWITCHER㈢ 3A Flyback Regulator with Sh
LM2586-12MDC	NSC	获取价格	IC 7 A SWITCHING REGULATOR, 200 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or C
LM2586-5.0MWC	NSC	获取价格	IC 7 A SWITCHING REGULATOR, 200 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator or
LM2586S-12	NSC	获取价格	SIMPLE SWITCHER 3A Flyback Regulator with Shutdown
LM2586S-12	TI	获取价格	LM2586 SIMPLE SWITCHER 3A Flyback Regulator with Shutdown
LM2586S-12/NOPB	TI	获取价格	具有频率同步功能的 4V 至 40V、3A 升压宽输入电压反激式稳压器 \| KTW \| 7
LM2586S-3.3	TI	获取价格	LM2586 SIMPLE SWITCHER 3A Flyback Regulator with Shutdown
LM2586S-3.3	NSC	获取价格	SIMPLE SWITCHER 3A Flyback Regulator with Shutdown
LM2586S-3.3/NOPB	TI	获取价格	具有频率同步功能的 4V 至 40V、3A 升压宽输入电压反激式稳压器 \| KTW \| 7
LM2586S-5.0	NSC	获取价格	SIMPLE SWITCHER 3A Flyback Regulator with Shutdown

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