LP38853
- Wide VBIAS Supply Operating Range: 3 V to 5.5 V
- Adjustable VOUT Range: 0.8 V to 1.8 V
- Dropout Voltage of 240 mV (Typical) at 3-A Load Current
- Precision VADJ 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
- −40°C to +125°C Operating Junction Temperature Range
The LP38853 is a high-current, fast-response regulator that 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 NMOS power transistor; VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the device to operate from ultra-low VIN voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an NMOS 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 and microcontroller core voltages, and switch-mode power-supply post regulators. Dropout Voltage: 240 mV (typical) at 3-A load current Low Ground Pin Current: 10 mA (typical) at 3-A load currentSoft Start: Programmable soft-start time
For all available packages, see the orderable addendum at the end of the data sheet.기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LP38853 3-A Fast-Response High-Accuracy Adjustable LDO Linear Regulator With Enable and Soft Start datasheet (Rev. F) | PDF | HTML | 2016/11/04 |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/06/27 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Selection guide | Low Dropout Regulators Quick Reference Guide (Rev. P) | 2018/03/21 | ||
| EVM User's guide | AN-1504 LP38853S-ADJ Evaluation Board (Rev. C) | 2013/04/24 | ||
| 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
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| 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 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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