LP2951

활성

100mA, 30V, 저손실 전압 레귤레이터(전원 양호 및 활성화 지원)

지금 주문

데이터시트

document-pdfAcrobat LP295x Adjustable Micropower Voltage Regulators with Shutdown datasheet (Rev. I) (영어) PDF | HTML

LP2951

활성

데이터시트

지금 주문

제품 상세 정보

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

0.1

Vin (max) (V)

30

Vin (min) (V)

2

Vout (max) (V)

29

Vout (min) (V)

1.2

Fixed output options (V)

3, 3.3, 5

Noise (µVrms)

160

Iq (typ) (mA)

0.075

Thermal resistance θJA (°C/W)

52, 97

Rating

Catalog

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

3

PSRR at 100 KHz (dB)

57

Dropout voltage (Vdo) (typ) (mV)

380

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

0.1

Vin (max) (V)

30

Vin (min) (V)

2

Vout (max) (V)

29

Vout (min) (V)

1.2

Fixed output options (V)

3, 3.3, 5

Noise (µVrms)

160

Iq (typ) (mA)

0.075

Thermal resistance θJA (°C/W)

52, 97

Rating

Catalog

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

3

PSRR at 100 KHz (dB)

57

Dropout voltage (Vdo) (typ) (mV)

380

Operating temperature range (°C)

-40 to 125

SOIC (D)

8

29.4 mm² 4.9 x 6

WSON (DRG)

8

9 mm² 3 x 3

Wide Input Range: Up to 30 V
Rated Output Current of 100 mA
Low Dropout: 380 mV (Typ) at 100 mA
Low Quiescent Current: 75 µA (Typ)
Tight Line Regulation: 0.03% (Typ)
Tight Load Regulation: 0.04% (Typ)
High V_O Accuracy
- 1.4% at 25°C
- 2% Over Temperature
Can Be Used as a Regulator or Reference
Stable With Low ESR (>12 mΩ) Capacitors
Current- and Thermal-Limiting Features
LP2950 Only (3-Pin)
- Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
LP2951 Only (8-Pin Package)
- Fixed- or Adjustable-Output Voltages:
  5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ
- Low-Voltage Error Signal on Falling Output
- Shutdown Capability
- Remote Sense Capability for Optimal Output
  Regulation and Accuracy

Wide Input Range: Up to 30 V
Rated Output Current of 100 mA
Low Dropout: 380 mV (Typ) at 100 mA
Low Quiescent Current: 75 µA (Typ)
Tight Line Regulation: 0.03% (Typ)
Tight Load Regulation: 0.04% (Typ)
High V_O Accuracy
- 1.4% at 25°C
- 2% Over Temperature
Can Be Used as a Regulator or Reference
Stable With Low ESR (>12 mΩ) Capacitors
Current- and Thermal-Limiting Features
LP2950 Only (3-Pin)
- Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
LP2951 Only (8-Pin Package)
- Fixed- or Adjustable-Output Voltages:
  5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ
- Low-Voltage Error Signal on Falling Output
- Shutdown Capability
- Remote Sense Capability for Optimal Output
  Regulation and Accuracy

The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and V_TAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and V_TAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.

open-in-new

기타 선형 및 저손실(LDO) 레귤레이터 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

LP2950

활성

저 IQ, 100mA, 30V, 저손실 전압 레귤레이터 Has lower pin count and fixed voltage option

TPS7A25

활성

전원 양호 기능을 지원하는 300mA, 18V, 초저 IQ, 고정밀, 조정 가능한 저손실 전압 레귤레이터 This is a higher output (300-mA) LDO with power good and lower IQ (2.5 μA)

기술 문서

star

=TI에서 선정한 이 제품의 인기 문서

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.

모두 보기34

	유형	직함		날짜
*	Data sheet	LP295x Adjustable Micropower Voltage Regulators with Shutdown datasheet (Rev. I)	PDF \| HTML	2014/11/12
	Application note	L1 and L2 EV Charger Electric Vehicle Service Equipment Design Considerations (Rev. B)		2021/06/09
	Application note	LDO Noise Demystified (Rev. B)	PDF \| HTML	2020/08/18
	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
	EVM User's guide	LP2951 EVM User's Guide (Rev. A)		2018/01/05
	Application note	LDO PSRR Measurement Simplified (Rev. A)	PDF \| HTML	2017/08/09
	Technical article	How to use an LDO as a load switch	PDF \| HTML	2016/02/01
	Technical article	Two ways LDOs save power in the IoT	PDF \| HTML	2015/08/17
	Technical article	How to use an LDO to protect a power source	PDF \| HTML	2015/07/25
	Application note	A Topical Index of TI Supply Voltage Supervisor (SVS) Application Notes		2015/06/15
	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-1061 Power Conversion in Line-Powered Equipment (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	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	Low-Voltage Current Loop Transmitter		2007/08/02
	Application note	Battery Charging		2007/03/21
	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
	White paper	Versatility of the LM5030 PWM Push-Pull Controller		2003/12/01
	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

LP2951EVM — LP2951 고정/조정 가능 마이크로파워 저손실(LDO) 레귤레이터 평가 모듈

The LP2951 devices are bipolar low-dropout (LDO) voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V with an output load up to 100 mA. The LP2951EVM allows for flexibility in design, allowing the user to add or remove input and output capacitors, as well as (...)

사용 설명서: PDF