LP3963_TI 具有电源正常指示和使能功能的 3A、低压降稳压器

LP3963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：具有电源正常指示和使能功能的 3A、低压降稳压器
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LP3963的产品详情：

The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very quickly to step changes in load which makes them suitable for low voltage microprocessor applications. The LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current.

Ground Pin Current: Typically 6mA at 3A load current.

Shutdown Mode: Typically 15µA quiescent current when the shutdown pin is pulled low.

Error Flag: Error flag goes low when the output voltage drops 10% below nominal value (for LP3963).

SENSE: Sense pin improves regulation at remote loads. (For LP3966)

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

LP3963的优势和特性：

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.06%
15μA Quiescent Current in Shutdown Mode
Specified Output Current of 3A DC
Available in DDPAK/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status (LP3963)
Sense Option Improves Load Regulation (LP3966)
Minimum Output Capacitor Requirements
Overtemperature/Overcurrent Protection
?40°C to +125°C Junction Temperature Range

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LP3963的参数（英文）：

Output options
Fixed Output
Iout (Max) (A)
3
Vin (Max) (V)
7
Vin (Min) (V)
2.5
Vout (Max) (V)
3.3
Vout (Min) (V)
2.5
Fixed output options (V)
2.5, 3.3
Noise (uVrms)
150
Iq (Typ) (mA)
5
Thermal resistance θJA (°C/W)
60
Rating
Catalog
Load capacitance (Min) (μF)
33
Regulated outputs (#)
1
Features
Enable, Power good
Accuracy (%)
3
PSRR @ 100 KHz (dB)
32
Dropout voltage (Vdo) (Typ) (mV)
800
Operating temperature range (C)
-40 to 125

LP3963具体的完整产品型号参数及价格（美元）：

LP3963的完整型号有：LP3963ES-2.5/NOPB、LP3963ES-3.3/NOPB、LP3963ESX-2.5/NOPB、LP3963ESX-3.3/NOPB、LP3963ES-3.3、LP3963ESX-3.3，以下是这些产品的关键参数及官网采购报价：

LP3963ES-2.5/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，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LP3963ES-2.5/NOPB的批量USD价格：1.958（1000+）

LP3963ES-3.3/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，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LP3963ES-3.3/NOPB的批量USD价格：1.958（1000+）

LP3963ESX-2.5/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，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LP3963ESX-2.5/NOPB的批量USD价格：1.632（1000+）

LP3963ESX-3.3/NOPB，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，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LP3963ESX-3.3/NOPB的批量USD价格：1.632（1000+）

LP3963ES-3.3，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，包装数量MPQ：45个，MSL 等级/回流焊峰值温度：Level-3-235C-168 HR，引脚镀层/焊球材料：SNPB，TI官网LP3963ES-3.3的批量USD价格：2.53（1000+）

LP3963ESX-3.3，工作温度：-40 to 125，封装：DDPAK/TO-263 (KTT)-5，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-3-235C-168 HR，引脚镀层/焊球材料：SNPB，TI官网LP3963ESX-3.3的批量USD价格：2.203（1000+）

LP3963的评估套件：

LP3963的电路图解：

LP3963的评估套件：