LP2989

활성

500mA, 16V, 저손실 전압 레귤레이터(전원 양호 및 활성화 지원)

지금 주문

데이터 시트

document-pdfAcrobat LP2989 Micropower and Low-Noise, 500-mA Ultra Low-Dropout Regulator for Use With Ceramic Output Capacitors datasheet (Rev. O) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

TPS7A26

활성

전원 양호 기능을 지원하는 500mA, 18V, 초저 IQ, 고정밀, 조정 가능한 저손실 전압 레귤레이터 This is a 500-mA LDO with power good and lower IQ (2.5 μA).

LP2989

활성

데이터 시트

지금 주문

제품 상세 정보

Output options

Fixed Output

Iout (max) (A)

0.5

Vin (max) (V)

Vin (min) (V)

2.1

Vout (max) (V)

Vout (min) (V)

2.5

Fixed output options (V)

2.5, 2.8, 3, 3.3, 3.8, 5

Noise (µVrms)

Iq (typ) (mA)

0.11

Thermal resistance θJA (°C/W)

35, 114, 156

Rating

Catalog

Load capacitance (min) (µF)

4.7

Regulated outputs (#)

Features

Enable, Power good

Accuracy (%)

PSRR at 100 KHz (dB)

Dropout voltage (Vdo) (typ) (mV)

310

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

0.5

Vin (max) (V)

Vin (min) (V)

2.1

Vout (max) (V)

Vout (min) (V)

2.5

Fixed output options (V)

2.5, 2.8, 3, 3.3, 3.8, 5

Noise (µVrms)

Iq (typ) (mA)

0.11

Thermal resistance θJA (°C/W)

35, 114, 156

Rating

Catalog

Load capacitance (min) (µF)

4.7

Regulated outputs (#)

Features

Enable, Power good

Accuracy (%)

PSRR at 100 KHz (dB)

Dropout voltage (Vdo) (typ) (mV)

310

Operating temperature range (°C)

-40 to 125

SOIC (D)

29.4 mm² 4.9 x 6

VSSOP (DGK)

14.7 mm² 3 x 4.9

WSON (NGN)

16 mm² 4 x 4

2.1-V to 16-V Input Voltage Range
2.5-V to 5-V Fixed Output Voltage Options
Ultra-Low Dropout Voltage
500-mA Continuous Output Current
Very Low Output Noise With External Capacitor
< 0.8-µA Quiescent Current When Shutdown
Low Ground Pin Current at All Loads
0.75% Output Voltage Accuracy (A Grade)
High Peak Current Capability (800-mA typical)
Overtemperature and Overcurrent Protection
−40°C to 125°C Junction Temperature Range

2.1-V to 16-V Input Voltage Range
2.5-V to 5-V Fixed Output Voltage Options
Ultra-Low Dropout Voltage
500-mA Continuous Output Current
Very Low Output Noise With External Capacitor
< 0.8-µA Quiescent Current When Shutdown
Low Ground Pin Current at All Loads
0.75% Output Voltage Accuracy (A Grade)
High Peak Current Capability (800-mA typical)
Overtemperature and Overcurrent Protection
−40°C to 125°C Junction Temperature Range

The LP2989 is a fixed-output 500-mA precision LDO regulator designed for use with ceramic output capacitors.

Output noise can be reduced to 18 µV (typical) by connecting an external 10-nF capacitor to the bypass pin.

Using an optimized Vertically Integrated PNP (VIP) process, the LP2989 delivers superior performance:

Dropout Voltage: Typically 310 mV at 500-mA load, and 1 mV at 100-µA load.
Ground Pin Current: Typically 3 mA at 500-mA load, and 110 µA at 100-µA load.
Sleep Mode: The LP2989 draws less than 0.8-µA quiescent current when SHUTDOWN pin is pulled low.
Error Flag: The built-in error flag goes low when the output drops approximately 5% below nominal.
Precision Output: Output voltage accuracy is 0.75% (A grade) and 1.25% (standard grade) at room temperature.

For output voltages < 2 V, see LP2989LV (SNVS086) data sheet.

The LP2989 is a fixed-output 500-mA precision LDO regulator designed for use with ceramic output capacitors.

Output noise can be reduced to 18 µV (typical) by connecting an external 10-nF capacitor to the bypass pin.

Using an optimized Vertically Integrated PNP (VIP) process, the LP2989 delivers superior performance:

Dropout Voltage: Typically 310 mV at 500-mA load, and 1 mV at 100-µA load.
Ground Pin Current: Typically 3 mA at 500-mA load, and 110 µA at 100-µA load.
Sleep Mode: The LP2989 draws less than 0.8-µA quiescent current when SHUTDOWN pin is pulled low.
Error Flag: The built-in error flag goes low when the output drops approximately 5% below nominal.
Precision Output: Output voltage accuracy is 0.75% (A grade) and 1.25% (standard grade) at room temperature.

For output voltages < 2 V, see LP2989LV (SNVS086) data sheet.

filter

기타 선형 및 저손실(LDO) 레귤레이터 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star

=TI에서 선정한 이 제품의 인기 문서

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.

3개 모두 보기

	유형	직함		날짜
*	Data sheet	LP2989 Micropower and Low-Noise, 500-mA Ultra Low-Dropout Regulator for Use With Ceramic Output Capacitors datasheet (Rev. O)	PDF \| HTML	2015/03/10
	Selection guide	Power Management Guide 2018 (Rev. R)		2018/06/25
	Selection guide	Low Dropout Regulators Quick Reference Guide (Rev. P)		2018/03/21