LP38851
- Adjustable VOUT Range of 0.80V to 1.8V
- Wide VBIAS Supply Operating Range of 3.0V to 5.5V
- Stable with 10µF Ceramic Capacitors
- Dropout Voltage of 115 mV (Typical) at 800 mA Load Current
- Precision VADJ across All Line and Load Conditions:
- ±1.5% VADJ for TJ = 25°C
- ±2.0% VADJ for 0°C ≤ TJ ≤ +125°C
- ±3.0% VADJ for -40°C ≤ TJ ≤ +125°C
- Over-Temperature and Over-Current Protection
- Available in 8-Lead SO PowerPad,
7-Lead SFM and 7-Lead PFM Packages - −40°C to +125°C Operating Junction Temperature Range
All trademarks are the property of their respective owners.
The LP38851-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 ultra low 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. The part is available in PSOP 8–pin, SFM 7–pin, and TO-263 7-pin packages.
- Dropout Voltage: 115 mV (typical) at 800 mA load current
- Low Ground Pin Current: 10 mA (typical) at 800 mA load current
- Soft-Start: Programmable Soft-Start time
- Precision ADJ Voltage: ±1.5% for TJ = 25°C, and ±2.0% for 0°C ≤ TJ ≤ +125°C, across all line and load conditions
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | 800 mA Fast-Response High-Accuracy Adj LDO Linear Reg w/ Enable & Soft-Start 数据表 (Rev. C) | 2013年 4月 5日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
选择指南 | Low Dropout Regulators Quick Reference Guide (Rev. P) | 2018年 3月 21日 | ||||
选择指南 | 低压降稳压器快速参考指南 (Rev. M) | 最新英语版本 (Rev.P) | 2017年 1月 5日 | |||
应用手册 | AN-1815 LDOs Ease the Stress of Start-Up (Rev. A) | 2013年 4月 24日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
HSOIC (DDA) | 8 | Ultra Librarian |
TO-220 (NDZ) | 7 | Ultra Librarian |
TO-263 (KTW) | 7 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。