LP2985

활성

활성화 기능이 있는 150mA, 16V, 저손실 전압 레귤레이터

지금 주문

데이터시트

document-pdfAcrobat LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. R) (영어) PDF | HTML

LP2985

활성

데이터시트

지금 주문

제품 상세 정보

Output options

Fixed Output

Iout (max) (A)

0.15

Vin (max) (V)

16

Vin (min) (V)

2.2

Vout (max) (V)

10

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10

Noise (µVrms)

30

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

205.4, 206

Rating

Catalog

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

5

PSRR at 100 KHz (dB)

40

Dropout voltage (Vdo) (typ) (mV)

280

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

0.15

Vin (max) (V)

16

Vin (min) (V)

2.2

Vout (max) (V)

10

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10

Noise (µVrms)

30

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

205.4, 206

Rating

Catalog

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

5

PSRR at 100 KHz (dB)

40

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 (new chip): 2.5 V to 16 V
V OUT range (new chip):
- 1.2 V to 5.0 V (fixed, 100-mV steps)
V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
±1% output accuracy over load, and temperature 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:
- 0.01 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)

V IN range (new chip): 2.5 V to 16 V
V OUT range (new chip):
- 1.2 V to 5.0 V (fixed, 100-mV steps)
V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
±1% output accuracy over load, and temperature 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:
- 0.01 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)

The LP2985 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 supports an output range of 1.2 V to 5.0 V (for new chip).

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

The LP2985 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 supports an output range of 1.2 V to 5.0 V (for new chip).

Additionally, the LP2985 (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 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 즉각적 대체품

TPS7A24

활성

200mA, 18V, 초저 IQ, 저손실(LDO) 전압 레귤레이터(활성화) Pin-to-pin option with ultra-low-IQ (2 uA)

기술 문서

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=TI에서 선정한 이 제품의 인기 문서

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모두 보기28

	유형	직함		날짜
*	Data sheet	LP2985 150-mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. R)	PDF \| HTML	2023/07/10
	Application note	LDO Noise Demystified (Rev. B)	PDF \| HTML	2020/08/18
	Application brief	16-Bit 8-Channel PLC Analog Input Module with High Voltage (±150 V) Common Mode		2020/04/27
	Application note	ESR, Stability, and the LDO Regulator (Rev. A)		2020/01/07
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)		2019/06/27
	Application note	Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A)		2018/08/17
	Application note	LDO PSRR Measurement Simplified (Rev. A)	PDF \| HTML	2017/08/09
	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	AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B)		2013/05/06
	Application note	AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A)		2013/04/25
	Application note	AN-1815 LDOs Ease the Stress of Start-Up (Rev. A)		2013/04/24
	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	3.6V – 5.5V Input, LDO Reference Design for MSP430 (Rev. A)		2010/06/14
	Application note	3.6V – 5.5V Input, LDO with Dual-Level Output Reference Design for MSP430 (Rev. A)		2010/06/14
	Application note	Packaging Limits Range of Linear Regulators		2010/05/08
	Application note	Simple Power Solution Using LDOs for the DM365 (Rev. A)		2009/09/11
	Application note	Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)		2008/06/04
	Application note	Linear and Switching Voltage Regulator Fundamental Part 1		2007/03/21
	Application note	Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A)		2006/10/13
	Application note	Understanding LDO Dropout		2005/05/09
	More literature	LP2981/85 Product Clip		2004/09/09
	Application note	Extending the Input Voltage Range of an LDO Regulator		2002/08/16
	Application note	Understanding the Terms and Definitions of LDO Voltage Regulators		1999/10/21
	Application note	Technical Review of Low Dropout Voltage Regulator Operation And Performance		1999/08/30
	Application brief	Low Power 150-mA LDO Linear Regulators. Extended Output Voltage Adjustment Range		1999/06/11

설계 및 개발

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

평가 보드

DRV8835EVM — DRV8835 평가 모듈

The DRV8835 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8835 motor driver from Texas Instruments. User can control the DRV8835 with an external microcontroller via signal header connectors or use on-board switches for stand-alone operation.

사용 설명서: PDF

TI.com에서 구매할 수 없습니다

평가 보드

DRV8837CEVM — 1A 저전압 H 브리지 평가 모듈

The DRV8837CEVM evaluation module (EVM) is a 3.3 V to 11 V, 1 A, brushed DC motor drive and control system based on the DRV8837C integrated brushed motor driver, compact MSP430G2131 microcontroller, and LP2985 Low-Dropout Regulator. The EVM allows for simple evaluation of the DRV8837C with a wide (...)

사용 설명서: PDF

TI.com에서 구매할 수 없습니다

평가 보드

LDC1314KEYPAD-EVM — LDC1314 인덕턴스-디지털 컨버터 평가 모듈: 16 버튼 키패드

The LDC1314KEYPAD evaluation module implements a 16 snap dome button keypad using only one LDC1314 to multiplex all 16 buttons.

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

TI.com에서 구매할 수 없습니다

평가 보드

LMG1025-Q1EVM — LMG1025-Q1 GaN 저압측 드라이버 + GaN FET LiDAR 평가 모듈

The LMG1025-Q1EVM is a small, easy-to-use power stage with integrated resistive load (laser not included). It takes a short-pulse input that can either be buffered (and shortened further), or passed directly to the power stage.

사용 설명서: PDF

TI.com에서 구매할 수 없습니다

시뮬레이션 모델

LP2985-10 PSpice Transient Model

SLVMA21.ZIP (20 KB) - PSpice Model

LP2985

활성화 기능이 있는 150mA, 16V, 저손실 전압 레귤레이터

LP2985

제품 상세 정보

관심 가지실만한 유사 제품

비교 대상 장치보다 업그레이드된 기능을 지원하는 즉각적 대체품

기술 문서

설계 및 개발

DRV8835EVM — DRV8835 평가 모듈

DRV8837CEVM — 1A 저전압 H 브리지 평가 모듈

LDC1314KEYPAD-EVM — LDC1314 인덕턴스-디지털 컨버터 평가 모듈: 16 버튼 키패드

LMG1025-Q1EVM — LMG1025-Q1 GaN 저압측 드라이버 + GaN FET LiDAR 평가 모듈

TIDA-01598 — 태양광 인버터를 위한 저압측, 고대역폭 전류 증폭기 및 고장 감지 레퍼런스 설계

주문 및 품질

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

비디오 시리즈

동영상