전원 관리 선형 및 저손실(LDO) 레귤레이터

LM317

활성

1.5A, 40V, 조정 가능 선형 전압 레귤레이터

제품 상세 정보

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 37 Vout (min) (V) 1.25 Noise (µVrms) 38 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 24 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 5 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 37 Vout (min) (V) 1.25 Noise (µVrms) 38 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 24 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 5 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 2000 Operating temperature range (°C) 0 to 125
SOT-223 (DCY) 4 45.5 mm² 6.5 x 7 TO-220 (KCS) 3 46.228 mm² 10.16 x 4.55 TO-263 (KTT) 3 154.8384 mm² 10.16 x 15.24
  • Output voltage range adjustable
    from 1.25 V to 37 V
  • Output current greater than 1.5 A
  • Internal short-circuit current limiting
  • Thermal overload protection
  • Output safe-area compensation
  • Output voltage range adjustable
    from 1.25 V to 37 V
  • Output current greater than 1.5 A
  • Internal short-circuit current limiting
  • Thermal overload protection
  • Output safe-area compensation

The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overload protection, and safe operating area protection. Overload protection remains functional even if the ADJUST terminal is disconnected.

The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overload protection, and safe operating area protection. Overload protection remains functional even if the ADJUST terminal is disconnected.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
LM317A 활성 높은 정확도의 1.5A, 40V, 조정 가능 선형 전압 레귤레이터 Pin-to-pin equivalent with improved performance
LM317HV 활성 1.5A, 60V, 조정 가능 선형 전압 레귤레이터 This product is a higher voltage (60-V), 1.5-A linear regulator

기술 문서

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모두 보기28
유형 직함 날짜
* Data sheet LM317 3-Terminal Adjustable Regulator datasheet (Rev. Y) PDF | HTML 2020/04/29
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020/08/18
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019/06/27
Application note Accurate Thermal Calculations on the Back of a Napkin 2019/06/03
Application note Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) 2018/08/17
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018/03/21
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017/08/09
Technical article Designing an IoT modular light PDF | HTML 2016/06/17
Technical article How to create power solutions: solar power PDF | HTML 2016/01/19
Application note A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes 2015/06/15
Application note Linear power for automated industrial systems 2015/01/09
Analog Design Journal Techniques for accurate PSRR measurements 2013/10/28
Application note AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) 2013/05/06
Application note AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) 2013/05/06
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 2013/05/06
Application note AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B) 2013/05/06
Application note AN-178 Applications for an Adjustable IC Power Regulator (Rev. B) 2013/05/05
Application note AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) 2013/05/05
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 2013/05/05
Application note AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A) 2013/04/25
Application note AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 2013/04/23
Application note High-Efficiency Reg has Low Drop-Out Voltage (Rev. B) 2013/04/23
Application note AN-1950 Silently Powering Low Noise Applications (Rev. A) 2013/04/22
Application note LDO Performance Near Dropout 2010/10/08
Application note Linear and Switching Voltage Regulator Fundamental Part 1 2007/03/21
Application note A New Production Technique for Trimming Voltage Regulators 2002/10/03
Application note Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems 2002/10/03
Application note High Stability Regulators 2002/10/03

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

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The LM317A-337N-EVM demonstrates canonical application of the LM317A adjustable regulator and its negative complement, the LM337-N. The evaluation module (EVM) is assesmbled with the SOT-223 package option for each device, supplying up to 1 A of load current. The EVM is designed for easy (...)

사용 설명서: PDF
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시뮬레이션 모델

LM317 PSpice Transient Model

SBVM440.ZIP (34 KB) - PSpice Model
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LM317 TINA-TI Transient Model

SBVM441.ZIP (8 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM317 TINA-TI Transient Reference Design

SBVM442.TSC (606 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM317 Unencrypted PSpice Transient Model

SLVMC40.ZIP (1 KB) - PSpice Model
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회로도: PDF
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PMP20396 is a multiple-output isolated bias supply reference design. With 100V or above input voltage, this design can provide maximum 2W output power. With 300V or above input voltage, this design can provide maximum 50W output power. Four different outputs are provided in this design - 5V/500mA (...)
Test report: PDF
회로도: PDF
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The PMP8930 reference design uses the UCC28710 primary-side regulated flyback controller to generate a 20V output from a univeral AC input. a bulk capacitor with slow-charge-fast-discharge circuit is placed at flyback output to provide long hold up time for the following step-down DC-DC stages. (...)
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패키지 다운로드
SOT-223 (DCY) 4 옵션 보기
TO-220 (KCS) 3 옵션 보기
TO-263 (KTT) 3 옵션 보기

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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