概述
The LP3994 is a high performance low dropout（LDO）voltage regulator with wide input voltage range and low quiescent current (1.5 μ A typical). The device is suitable for a multitude ofapplications which require a regulated supply of up to 150mA load current. The device uses an advanced CMOS process and a PMOSFET to achieve fast start-up, high output voltage accuracy and excellent transient response performance. The LP3994 comes in standard fixed output voltage 3.3V and 5.0V. The device is stable with a 1.0μF~10μF ceramic output capacitor, The device is protected from short circuit by the current limit function and from over-heating by thermal overload protection.The device is offered in SOT23-3，SOT23-5，SOT89-3 package.
应用
◆ Digital cameras
◆ Audio devices
◆ Portable and battery-powered equipment
◆ Post dc-to-dc regulation
◆ Post regulation
◆ Audio devices
◆ Portable and battery-powered equipment
◆ Post dc-to-dc regulation
◆ Post regulation
数据参数
数据参数
输出电流(mA)
200
输出电压(V)
3.3/5.0
输入电压(V)
3.6~44
电源抑制比
-45
精度(%)
1.5
导通压差(mV/mA)
550 @ 100
静态电流(uA)
1.5
特点
Low Quiescent,High Voltage
封装
SOT23-3/SOT-89/SOT23-5
特征
特征
◆ Wide Input Voltage Range: 3.6V to 40V
◆ Maximum Load Current Up to 150mA
◆ Low Quiescent Current 1.5μA typical
◆ Low Dropout Voltage:
550mV @ 100mA Load
850mV @ 150mA Load
◆ Output Voltage Tolerance
±1.5% @ 1mA Load
◆ Stable with Minimum 1.0μF Output Capacitance
◆ Short Circuit Current Limit 120mA
◆ Internal Thermal Overload Protection
◆ Excellent Load/Line Transient Response
◆ Line Regulation: 0.01%/V typical
◆ Load Regulation: 0.005%/mA typical
◆ ESD protections
◆ Package: SOT23-3, SOT23-5, SOT89-3
◆ RoHS Compliant and 100% Lead (Pb)-Free
◆ Maximum Load Current Up to 150mA
◆ Low Quiescent Current 1.5μA typical
◆ Low Dropout Voltage:
550mV @ 100mA Load
850mV @ 150mA Load
◆ Output Voltage Tolerance
±1.5% @ 1mA Load
◆ Stable with Minimum 1.0μF Output Capacitance
◆ Short Circuit Current Limit 120mA
◆ Internal Thermal Overload Protection
◆ Excellent Load/Line Transient Response
◆ Line Regulation: 0.01%/V typical
◆ Load Regulation: 0.005%/mA typical
◆ ESD protections
◆ Package: SOT23-3, SOT23-5, SOT89-3
◆ RoHS Compliant and 100% Lead (Pb)-Free
