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

LP38852

활성

1.5A, 낮은 VIN(0.93V), 조정 가능 초저손실 전압 레귤레이터(활성화 지원)

지금 주문
데이터 시트

LP38852

활성
데이터 시트 지금 주문

제품 상세 정보

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.93 Vout (max) (V) 1.8 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 90 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 34 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 130 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.93 Vout (max) (V) 1.8 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 90 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 34 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 130 Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 TO-220 (NDZ) 7 82.6008 mm² 10.16 x 8.13 TO-263 (KTW) 7 153.924 mm² 10.1 x 15.24
  • Input VIN Range 0.93 V to 5.5 V
  • Adjustable VOUT Range 0.8 V to 1.8 V
  • Wide VBIAS Supply Operating Range 3 V to 5.5 V
  • Dropout Voltage of 130 mV (Typical) at 1.5-A Load Current
  • Precision Output Voltage Across All Line and Load Conditions:
    • ±1.5% VADJ for TJ = 25°C
    • ±2% VADJ for 0°C ≤ TJ ≤ +125°C
    • ±3% VADJ for –40°C ≤ TJ ≤ +125°C
  • Overtemperature and Overcurrent Protection
  • Stable with 10-µF Ceramic Capacitors
  • Available in 7-pin TO-220, 7-Pin DDPAK/TO-263, and 8-Pin SO PowerPAD Packages
  • −40°C to +125°C Operating Junction Temperature Range
  • Input VIN Range 0.93 V to 5.5 V
  • Adjustable VOUT Range 0.8 V to 1.8 V
  • Wide VBIAS Supply Operating Range 3 V to 5.5 V
  • Dropout Voltage of 130 mV (Typical) at 1.5-A Load Current
  • Precision Output Voltage Across All Line and Load Conditions:
    • ±1.5% VADJ for TJ = 25°C
    • ±2% VADJ for 0°C ≤ TJ ≤ +125°C
    • ±3% VADJ for –40°C ≤ TJ ≤ +125°C
  • Overtemperature and Overcurrent Protection
  • Stable with 10-µF Ceramic Capacitors
  • Available in 7-pin TO-220, 7-Pin DDPAK/TO-263, and 8-Pin SO PowerPAD Packages
  • −40°C to +125°C Operating Junction Temperature Range

The LP38852-ADJ is a high-current, fast-response regulator which can maintain output voltage regulation with extremely low input-to-output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: VBIAS provides voltage to drive the gate of the N-MOS power transistor, while VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultralow VIN voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of this device makes it suitable for use in powering DSP, microcontroller core voltages, and switch-mode power supply post-regulators.

130 mV (typical) at 1.5-A load current.

10 mA (typical) at 1.5-A load current.

Programmable soft-start time.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP38852-ADJ is a high-current, fast-response regulator which can maintain output voltage regulation with extremely low input-to-output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: VBIAS provides voltage to drive the gate of the N-MOS power transistor, while VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultralow VIN voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of this device makes it suitable for use in powering DSP, microcontroller core voltages, and switch-mode power supply post-regulators.

130 mV (typical) at 1.5-A load current.

10 mA (typical) at 1.5-A load current.

Programmable soft-start time.

For all available packages, see the orderable addendum at the end of the data sheet.
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기술 자료

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4개 모두 보기
유형 직함 날짜
* Data sheet LP38852-ADJ 1.5-A Fast-Response High-Accuracy Adjustable LDO Linear Regulator With Enable and Soft-Start datasheet (Rev. F) PDF | HTML 2015/12/17
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
EVM User's guide AN-1560 LP38852MR-ADJ Evaluation Board (Rev. B) 2013/04/24
Application note AN-1815 LDOs Ease the Stress of Start-Up (Rev. A) 2013/04/24

설계 및 개발

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

패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HSOIC (DDA) 8 Ultra Librarian
TO-220 (NDZ) 7 Ultra Librarian
TO-263 (KTW) 7 Ultra Librarian
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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

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