홈 전원 관리 선형 및 저손실(LDO) 레귤레이터
홈
전원 관리
선형 및 저손실(LDO) 레귤레이터

LP2985-N

활성

활성화 기능이 있는 150mA, 16V, 저손실 전압 레귤레이터

지금 주문
데이터 시트

LP2985-N

활성
데이터 시트 지금 주문

제품 상세 정보

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 16 Vin (min) (V) 2.2 Vout (max) (V) 6.1 Vout (min) (V) 1.8 Fixed output options (V) 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 5.7, 6.1 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 30 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 169 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 280 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 16 Vin (min) (V) 2.2 Vout (max) (V) 6.1 Vout (min) (V) 1.8 Fixed output options (V) 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.5, 5, 5.7, 6.1 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 30 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 169 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 280 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • V IN range: 2.5 V to 16 V
  • V OUT range (new chip):
    • 1.2 V to 5.0 V (fixed, 100-mV steps)
  • V OUT range (legacy chip): 2.5 V to 6.1 V
  • V OUT accuracy:
    • ±1% for A-grade legacy chip
    • ±1.5% for standard-grade legacy chip
    • ±0.5% for new chip only
  • Output accuracy over load, and temperature:
    • ±1% for new chip
  • Output current: Up to 150 mA
  • Low I Q (new chip): 71 µA at I LOAD = 0 mA
  • Low I Q (new chip): 750 µA at I LOAD = 150 mA
  • Shutdown current:
    • 0.05 µA (typ) for legacy chip
    • 1.12 µA (typ) for new chip
  • Low noise: 30 µV RMS with 10-nF bypass capacitor
  • Output current limiting and thermal protection
  • Stable with 2.2-µF ceramic capacitors
  • High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
  • Operating junction temperature: –40°C to +125°C
  • Package: 5-pin SOT-23 (DBV) ultra-low dropout voltage
  • V IN range: 2.5 V to 16 V
  • V OUT range (new chip):
    • 1.2 V to 5.0 V (fixed, 100-mV steps)
  • V OUT range (legacy chip): 2.5 V to 6.1 V
  • V OUT accuracy:
    • ±1% for A-grade legacy chip
    • ±1.5% for standard-grade legacy chip
    • ±0.5% for new chip only
  • Output accuracy over load, and temperature:
    • ±1% for new chip
  • Output current: Up to 150 mA
  • Low I Q (new chip): 71 µA at I LOAD = 0 mA
  • Low I Q (new chip): 750 µA at I LOAD = 150 mA
  • Shutdown current:
    • 0.05 µA (typ) for legacy chip
    • 1.12 µA (typ) for new chip
  • Low noise: 30 µV RMS with 10-nF bypass capacitor
  • Output current limiting and thermal protection
  • Stable with 2.2-µF ceramic capacitors
  • High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
  • Operating junction temperature: –40°C to +125°C
  • Package: 5-pin SOT-23 (DBV) ultra-low dropout voltage

The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985-N supports an output range of 1.2 V to 5.0 V (new chip) and 2.5 V to 6.1 V (legacy chip).

Additionally, the LP2985-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985-N is available in a 5-pin, 2.9-mm × 1.6-mm SOT-23 (DBV) package.

The LP2985-N is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985-N supports an output range of 1.2 V to 5.0 V (new chip) and 2.5 V to 6.1 V (legacy chip).

Additionally, the LP2985-N (new chip) has a 1% output accuracy across load and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current-limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985-N is available in a 5-pin, 2.9-mm × 1.6-mm SOT-23 (DBV) package.
filter 기타 선형 및 저손실(LDO) 레귤레이터 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
LP2985 활성 활성화 기능이 있는 150mA, 16V, 저손실 전압 레귤레이터 Pin-to-pin equivalent for cost-sensitive applications
TPS709 활성 역전류 방지 및 활성화를 지원하는 150mA, 30V, 초저 IQ, 저손실 전압 레귤레이터 Wider voltage range
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
TPS7A24 활성 200mA, 18V, 초저 IQ, 저손실(LDO) 전압 레귤레이터(활성화) Pin-to-pin option with ultra-low-IQ (2 uA)

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
7개 모두 보기
유형 직함 날짜
* Data sheet LP2985-N 150-mA, Low-Noise, Low-Power, Ultra-Low-Dropout Regulator in a SOT-23 Package datasheet (Rev. AA) PDF | HTML 2023/07/14
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019/06/27
Technical article Trends in building automation: connected sensors for user comfort PDF | HTML 2016/09/02
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 2013/05/06
User guide AN-1840 USB I 2 C Interface Board Reference Manual (Rev. A) 2013/04/30
Application note AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) 2013/04/25
White paper Engineers note: Capacitors are key to voltage regulator design 2002/07/01

설계 및 개발

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

평가 보드

FDC1004QEVM — 오토모티브 4채널 커패시턴스-디지털 컨버터 평가 모듈

The FDC1004Q evaluation module is used to evaluate the FDC1004-Q1, automotive 4-channel capacitive-to-digital converter. The evaluation modules features a breakable PCB composed of three sections: a USB to I²C converter based on the MSP430F5528 microcontroller, the FDC1004-Q1, and two sensor (...)

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LDC1314DIAL-EVM — LDC1314 인덕턴스-디지털 컨버터 평가 모듈: 1도 다이얼

The LDC1314DIAL evaluation module implements a contactless rotational position sensing solution that is accurate to 1 degree with 0.1 degree resolution.

This design uses the LDC1314 but can also be replicated with the LDC1312, LDC1612 and LDC1614.

TI.com에서 구매 불가
시뮬레이션 모델

LP2985_N_2P5 PSpice Transient Model

SNVM632.ZIP (40 KB) - PSpice Model
다운로드
시뮬레이션 모델

LP2985_N_2P5 Unencrypted PSpice Transient Model

SNVMA86.ZIP (1 KB) - PSpice Model
다운로드
시뮬레이션 모델

LP2985_N_3P3 PSpice Transient Model

SNVM634.ZIP (41 KB) - PSpice Model
다운로드
시뮬레이션 모델

LP2985_N_3P3 Unencrypted PSpice Transient Model

SNVMA84.ZIP (1 KB) - PSpice Model
다운로드
시뮬레이션 모델

LP2985_N_5P0 PSpice Transient Model

SNVM633.ZIP (40 KB) - PSpice Model
다운로드
시뮬레이션 모델

LP2985_N_5P0 Unencrypted PSpice Transient Model

SNVMA85.ZIP (1 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-00300 — 통신 및 아날로그 입력/출력 모듈을 위한 절연 전원 아키텍처 레퍼런스 디자인

This reference design provides a means to isolate I2C or SPI communication lines. This is often required in grid infrastructure applications such as protection relays and circuit breakers where high voltages are involved. This reference design provides both power isolation and signal isolation.
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00508 — LDC1314 인덕턴스-디지털 컨버터를 사용하는 1도 다이얼 레퍼런스 디자인

The LDC1314's unique inductive sensing capability is used to implement a contactless rotational position sensing solution that is accurate to 1 degree. It uses standard PCB technology and easily manufactured components to implement a low cost solution.

This reference design uses the LDC1314.  (...)

Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00440 — 절연 저항 파악을 위한 누설 전류 측정 레퍼런스 디자인

This reference design measures insulation resistance up to 100 MΩ. It has an on-board isolated 500-Vdc power supply and an isolated signal conditioning circuit to measure the leakage current. This design is useful to find leakage due to insulation breakdown in transformer and motor windings.
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00509 — LDC1314 인덕턴스-디지털 컨버터를 사용하는 16버튼 유도성 키패드 레퍼런스 디자인

The LDC1314's unique inductive sensing capability is used to implement a contactless, 16 button, multi-function keypad. It uses standard PCB technology and easily manufactured components to implement a low cost solution.

This reference design uses the LDC1314.  This reference design can also be (...)

Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01070 — 공기 필터 교체의 예측형 유지 보수를 위한 HVAC 코일 공기 흐름 센서 레퍼런스 디자인

This design provides a reference for monitoring airflow efficiency and temperature through heat ventilation and air conditioner (HVAC) systems. The reference design is used in conjunction with solid state relays and piezoelectric vibration sensors to monitor and react accordingly to low airflow and (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01465 — 정전식 서리 또는 얼음 감지 레퍼런스 디자인, 1mm 미만 분해능, 온도 드리프트 0.25% 미만

Frost and ice buildup on cooling bodies and evaporators can significantly decrease system energy efficiency in many appliance applications such as refrigerators, air conditioners, and freezers. This sensor reference design helps to achieve the more stringent energy efficiency requirements of (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP20587 — 인버팅 벅-부스트 레퍼런스 디자인

This reference design uses UCD3138064A as a digital controller to control two-phase two-rail inverting buck-boost. This non-isolated converter is used for wireless radio power. The input voltage is from -35 V to -60 V. There are two outputs. The default output voltage of rail 1 is 32 V and max (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01102 — 방수/잡음 내성 HMI 애플리케이션을 위한 인덕티브 터치 스테인레스 스틸 키패드 레퍼런스 디자인

This 16-button stainless steel keypad, which utilizes TI's inductive touch technology, demonstrates highly sensitive buttons on a single piece of 0.6mm thick stainless steel metal.  The design utilizes a MUXed approach to implement many buttons with a single LDC1614. The design is (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00590 — 듀얼 배터리 충전기 IC 레퍼런스 디자인(Cascode 구성에서 연결)

Higher capacity 1S batteries in the latest smartphones and tablets need higher charge currents to charge faster.  With 12-V power sources, two 5-A battery charger ICs connected in cascode, parallel configuration can provide more than 5-A charging current.  In addition, the heat from the (...)
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
SOT-23 (DBV) 5 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상