LP38851_TI 具有使能功能的 800mA、低输入电压 (0.915V)、可调节超低压降稳压器

LP38851的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：线性和低压降 (LDO) 稳压器
功能描述：具有使能功能的 800mA、低输入电压 (0.915V)、可调节超低压降稳压器
点击这里打开及下载LP38851的技术文档资料
TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格

LP38851的产品详情：

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: V_BIAS provides voltage to drive the gate of the N-MOS power transistor, while V_IN 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 V_IN 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 T_J = 25°C, and ±2.0% for 0°C ≤ T_J ≤ +125°C, across all line and load conditions

LP38851的优势和特性：

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.

LP38851的参数（英文）：

Output options
Adjustable Output
Iout (Max) (A)
0.8
Vin (Max) (V)
5.5
Vin (Min) (V)
0.915
Vout (Max) (V)
1.8
Vout (Min) (V)
0.8
Noise (uVrms)
90
Iq (Typ) (mA)
10
Thermal resistance θJA (°C/W)
60
Rating
Catalog
Load capacitance (Min) (μF)
10
Regulated outputs (#)
1
Features
Enable, Soft start
Accuracy (%)
2
PSRR @ 100 KHz (dB)
50
Dropout voltage (Vdo) (Typ) (mV)
115
Operating temperature range (C)
-40 to 125

LP38851具体的完整产品型号参数及价格（美元）：

LP38851的完整型号有：LP38851MR-ADJ/NOPB、LP38851MRX-ADJ/NOPB、LP38851S-ADJ/NOPB、LP38851SX-ADJ/NOPB、LP38851T-ADJ/NOPB，以下是这些产品的关键参数及官网采购报价：

LP38851MR-ADJ/NOPB，工作温度：-40 to 125，封装：SO PowerPAD (DDA)-8，包装数量MPQ：95个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SN，TI官网LP38851MR-ADJ/NOPB的批量USD价格：0.937（1000+）

LP38851MRX-ADJ/NOPB，工作温度：-40 to 125，封装：SO PowerPAD (DDA)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SN，TI官网LP38851MRX-ADJ/NOPB的批量USD价格：0.781（1000+）

LP38851S-ADJ/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTW)-7，包装数量MPQ：45个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LP38851S-ADJ/NOPB的批量USD价格：0.937（1000+）

LP38851SX-ADJ/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTW)-7，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LP38851SX-ADJ/NOPB的批量USD价格：0.781（1000+）

LP38851T-ADJ/NOPB，工作温度：-40 to 125，封装：TO-220 (NDZ)-7，包装数量MPQ：45个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SN，TI官网LP38851T-ADJ/NOPB的批量USD价格：0.781（1000+）

LP38851的评估套件：

LP38851的电路图解：

LP38851的评估套件：