LP38502-ADJ

활성

1.5A, 조정 가능한 초저손실 전압 레귤레이터(활성화 지원)

지금 주문하기

데이터 시트

document-pdfAcrobat LP3850x-ADJ, LP3850xA-ADJ 1.5-A Flexcap Low-Dropout Linear Regulator for 2.7-V to 5.5-V Inputs datasheet (Rev. H) (영어) PDF | HTML

LP38502-ADJ

활성

데이터 시트

지금 주문하기

제품 상세 정보

Rating

Catalog

Vin (max) (V)

5.5

Vin (min) (V)

2.7

Iout (max) (A)

1.5

Output options

Adjustable Output

Vout (max) (V)

5

Vout (min) (V)

0.6

Noise (µVrms)

100

PSRR at 100 KHz (dB)

25

Iq (typ) (mA)

2

Features

Enable

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

220

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Vin (max) (V)

5.5

Vin (min) (V)

2.7

Iout (max) (A)

1.5

Output options

Adjustable Output

Vout (max) (V)

5

Vout (min) (V)

0.6

Noise (µVrms)

100

PSRR at 100 KHz (dB)

25

Iq (typ) (mA)

2

Features

Enable

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

220

Operating temperature range (°C)

-40 to 125

WSON (NGS)

8

7.5 mm² (3 mm × 2.5 mm)

TO-263 (KTT)

5

154.8384 mm² (10.16 mm × 15.24 mm)

TO-263 (NDQ)

5

142.3416 mm² (10.16 mm × 14.01 mm)

Input Voltage: 2.7 V to 5.5 V
Adjustable Output Voltage: 0.6 V to 5 V
FlexCap: Stable with Ceramic, Tantalum, or
Aluminum Capacitors
Stable with 10-µF Input and Output Capacitors
Low Ground-Pin Current
25-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 1.5 A
Ensured V_ADJ Accuracy of ±1.5% at 25°C (A
Grade)
Ensured Accuracy of ±3.5% at 25°C (STD)
Overtemperature and Overcurrent Protection
ENABLE Pin (LP38502)

Input Voltage: 2.7 V to 5.5 V
Adjustable Output Voltage: 0.6 V to 5 V
FlexCap: Stable with Ceramic, Tantalum, or
Aluminum Capacitors
Stable with 10-µF Input and Output Capacitors
Low Ground-Pin Current
25-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 1.5 A
Ensured V_ADJ Accuracy of ±1.5% at 25°C (A
Grade)
Ensured Accuracy of ±3.5% at 25°C (STD)
Overtemperature and Overcurrent Protection
ENABLE Pin (LP38502)

TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

GND Pin Current: Typically 2 mA at 1.5-A load current.
Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
Precision Output: grade versions available with 1.5% V_ADJ tolerance (25°C) and 3% over line, load, and temperature.

TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

GND Pin Current: Typically 2 mA at 1.5-A load current.
Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
Precision Output: grade versions available with 1.5% V_ADJ tolerance (25°C) and 3% over line, load, and temperature.

filter

기타 선형 및 저손실(LDO) 레귤레이터 찾기

다운로드 스크립트와 함께 비디오 보기 비디오

기술 자료

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2개 모두 보기

상위 문서	유형	직함	형식 옵션	최신 영어 버전 다운로드	날짜
*	데이터 시트	LP3850x-ADJ, LP3850xA-ADJ 1.5-A Flexcap Low-Dropout Linear Regulator for 2.7-V to 5.5-V Inputs datasheet (Rev. H)	PDF \| HTML		2015. 9. 22
	애플리케이션 노트	AN-2219 Precision Current Limiting with the LMP8646 and LP38501 (Rev. A)			2013. 4. 24

설계 및 개발

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평가 보드

LP38502SD-ADJEV — 2.7V~5.5V 입력을 위한 1.5A FlexCap 저손실 선형 레귤레이터 평가 보드(LLP8)

This Evaluation Board highlights the LP38502SD-ADJ, a 1.5A Low-Dropout (LDO) linear regulator in the LLP-8 package which has an adjustable output voltage (set by external resistors).

Changing the Output Voltage

The resistors R1 and R2 set the output voltage. The equation to determine output voltage (...)

사용 설명서: PDF

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