微源半导体

概述

The LPQ3988 family are high performance low-dropout (LDO) voltage regulators with ultra-low output noise, high PSRR and fast transient response. The devices operate normally with junction temperture from -40℃ to 125℃ for automotive applications. The devices can deliver up to 600mA load current. The devices include fixed output voltage of 1.8V, 2.5V, 2.8V, 3.0V, and 3.3V.
The LPQ3988 family integrated over current protection and thermal shutdown in order to protect the system from abnormal situation.
The input and output capacitors can be as low as 1µF for LPQ3988.
The LPQ3988 is available in normal SOT23-5 and DFN2x2mm-6 package.

应用

◆ Automotive camera modules
◆ ADAS cameras and radar
◆ Image sensor power
◆ Automotive infotainment head units
◆ Microprocessor power rail

数据参数

输出电流(mA)

600

输出电压(V)

1.8/2.8/3.3

输入电压(V)

2.0-5.5

电源抑制比(dB)

-98

精度(%)

1.5

导通压差(mV/mA)

165 @ 250

静态电流(uA)

产品特征/功能

AEC-Q100,High PSRR,High Accuracy，Large current

封装

SOT23-5/DFN-6（2*2）

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
◆ Input voltage range: 2.0V to 5.5V
◆ High output voltage accuracy: ±1.5%(typ)
◆ Ultra-high PSRR: 92dB @ 1kHz(VOUT(NOM) = 3.3V)
◆ Ultra-low noise: 10µVRMS
◆ Low current consumption: 24µA (typ)
◆ Output current: up to 600mA
◆ Low dropout voltage:
- 150mV @300mA (VOUT(NOM) = 3.3V)
- 315mV @600mA (VOUT(NOM) = 3.3V)
◆ Integrated over-current protection
◆ Line regulation: 0.002%/V (typ)
◆ Load regulation: 0.0015%/mA (typ)
◆ Thermal shutdown
◆ Active-high enable
◆ Package: SOT23-5, DFN2x2-6
◆ RoHS compliant and 100% lead (Pb)-free