LM5009A

활성

6~95V 넓은 입력 전압 범위, 150mA COT(Constant-On-Time) 비동기 벅 레귤레이터

지금 주문

데이터 시트

document-pdfAcrobat LM5009A 100-V, 150-mA Constant ON-Time Buck Switching Regulator datasheet (Rev. H) (영어) PDF | HTML

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LM5163

활성

초저 IQ를 지원하는 100V 입력, 0.5A 동기 벅 DC/DC 컨버터 Synchronous rectification for smaller footprint and high efficiency and low IQ.

LM5009A

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

0.15

Vin (min) (V)

6

Vin (max) (V)

95

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

600

Features

Enable, Over Current Protection

Control mode

Constant on-time (COT)

Vout (min) (V)

2.5

Vout (max) (V)

85

Iq (typ) (µA)

485

Duty cycle (max) (%)

99

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

0.15

Vin (min) (V)

6

Vin (max) (V)

95

Switching frequency (min) (kHz)

50

Switching frequency (max) (kHz)

600

Features

Enable, Over Current Protection

Control mode

Constant on-time (COT)

Vout (min) (V)

2.5

Vout (max) (V)

85

Iq (typ) (µA)

485

Duty cycle (max) (%)

99

VSSOP (DGK)

8

14.7 mm² 3 x 4.9

WSON (NGU)

8

16 mm² 4 x 4

Operating Input Voltage Range: 6 V to 95 V
Integrated 100-V, N-Channel Buck Switch
Internal Start-Up Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
ON Time Varies Inversely With Input Voltage
Operating Frequency Remains Constant With Varying Line Voltage and Load Current
Adjustable Output Voltage From 2.5 V
Highly Efficient Operation
Precision Internal Reference
Low Bias Current
Intelligent Current Limit
Thermal Shutdown
8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) Packages

Operating Input Voltage Range: 6 V to 95 V
Integrated 100-V, N-Channel Buck Switch
Internal Start-Up Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
ON Time Varies Inversely With Input Voltage
Operating Frequency Remains Constant With Varying Line Voltage and Load Current
Adjustable Output Voltage From 2.5 V
Highly Efficient Operation
Precision Internal Reference
Low Bias Current
Intelligent Current Limit
Thermal Shutdown
8-Pin VSSOP and 8-Pin WSON (4 mm × 4 mm) Packages

The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed.

The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to V_IN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to V_OUT. This scheme ensures short-circuit control while providing minimum foldback. Other features include: thermal shutdown, undervoltage lockout (V_CC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch.

The LM5009A is a functional variant of the LM5009 COT buck switching regulator. The functional differences of the LM5009A are: The minimum input operating voltage is 6 V, the ON-time equation is slightly different, and the requirement for a minimum load current is removed.

The LM5009A step-down switching regulator features all of the functions required to implement a low cost, efficient, buck bias regulator. This high voltage regulator contains an 100-V N-channel buck switch. The device is easy to implement and is provided in the 8-pin VSSOP and the thermally enhanced 8-pin WSON packages. The regulator is based on a control scheme using an ON time inversely proportional to V_IN. This feature allows the operating frequency to remain relatively constant. The control scheme requires no loop compensation. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to V_OUT. This scheme ensures short-circuit control while providing minimum foldback. Other features include: thermal shutdown, undervoltage lockout (V_CC), gate drive undervoltage lockout, max duty cycle limiter, and a precharge switch.

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기술 자료

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=TI에서 선정한 이 제품의 인기 문서

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3개 모두 보기

	유형	직함		날짜
*	Data sheet	LM5009A 100-V, 150-mA Constant ON-Time Buck Switching Regulator datasheet (Rev. H)	PDF \| HTML	2016/09/30
	White paper	Wide VIN power management ICs simplify white paper (Rev. A)		2013/09/19
	EVM User's guide	AN-1955 LM5009A Evaluation Board (Rev. A)		2013/04/30

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평가 보드

LM5009AEVAL — LM5009A 150mA, 100V 넓은 Vin 스텝다운 스위칭 레귤레이터 평가 모듈

The LM5009AEVAL evaluation board provides the design engineer with a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 5V output over an input range of 8V to 75V. The circuit delivers load currents to 150 mA, with current (...)

사용 설명서: PDF