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概述
The LPQ3970 family are high performance low dropout (LDO) voltage regulators with high PSRR, low noise, fast transient response, and high accuracy. The devices are suitable for the applications that require regulated supplies of up to 1.0A load current.
The LPQ3970 family include adjustable output voltages of 0.55V to 5.0V with an external resister divider. The devices are stable with an effective 1.0μF or greater ceramic output capacitor. The devices are protected from
short circuit by a current limit function and from over-heating by a thermal overload protection.
The devices are available in standard DFN3x3-8 package.
应用
◆ Automotive RF Power Supply
◆ Automotive Telematics Power Supply
◆ Automotive ECU Power Supply
◆ Automotive Infotainment and Cluster System
◆ Post regulation
数据参数
数据参数
输出电流(mA)
1200
输出电压(V)
Adj.,FB=0.55V
输入电压(V)
1.8-5.5
电源抑制比
-70
精度(%)
2
导通压差(mV/mA)
150 @ 1000
静态电流(uA)
50
特点
AEC-Q100,Ultra-large Current, High PSRR, EN, PG, NR
封装
DFN-6(2*2), DFN-8(3*3)
特征
特征
◆ Qualified for Automotive Applications
◆ AEC-Q100 Qualified with the following results:
- Device temperature grade1
- Device HBM ESD classification level H3A
- Device CDM ESD classification level C3
◆ Wide Input Voltage Range: 1.6V to 5.5V
◆ Adjustable Output Voltage: 0.55V to 5.0V
◆ Maximum Load Current Up to 1.0A
◆ High PSRR: 70dB@1kHz, VOUT=3.3V
◆ Low Quiescent Current: 60μA
◆ Low Noise: 20μVRMS@VOUT=1.2V, CNR=0.47μF
◆ Low Dropout Voltage:
- 130mV @ 1000mA Load, VOUT=3.3V
- 260mV @ 1000mA Load, VOUT=1.8V
◆ Output Voltage Accuracy: ±2% @ 1mA typical
◆ Thermal Shutdown Protection
◆ Excellent Load/Line Transient Response
◆ Line Regulation: 0.01%/V typical
◆ Load Regulation: 5mV typical
◆ Robust ESD capability:
- Human Body Model: 4kV
- Charged Device Model: 1kV
◆ Package: DFN3x3-8
◆ RoHS Compliant and 100% Lead (Pb)-Free
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