JWQ7821 - 1A High-PSRR Low-Noise LDO

Datasheet Summary

Description

JWQ7821 is a 1A high accuracy, low noise, high PSRR linear regulator with 200mV maximum dropout voltage.

JWQ7821 supports input voltage ranges from 2.2 V to 5.5 V and adjustable output voltage range from 0.8 V to 5V.

Features

AEC-Q100 Grade1 Qualified.
Input Voltage Range 2.2V to 5.5V.
Output Voltage Range 0.8V to 5V.
Low Dropout：200mV Maximum at 1A.
High PSRR - 78dB at 1kHz - 42dB at 100kHz - 30dB at 1MHz.
3% Accuracy over Line Regulation, Load Regulation and Operating Temperature Range.
35.6uVRMS Output Noise (100Hz - 100kHz).
Stable with 4.7μF Ceramic Output Capacitors.
Over Temperature and Overcurrent Protection.
Offer DFN3×3-8 Package.

JoulWatt

📥 Download Datasheet

Datasheet Details

Part number	JWQ7821
Manufacturer	JoulWatt
File Size	914.65 KB
Description	1A High-PSRR Low-Noise LDO
Datasheet	JWQ7821 Datasheet
Additional preview pages of the JWQ7821 datasheet.

📁 Similar Datasheet

Other Datasheets by JoulWatt

JWQ7101 - Single Power Switch

Full PDF Text Transcription

Click to expand full text

JWQ7821 1A, Low-Dropout High-PSRR, Low-Noise, LDO DESCRIPTION JWQ7821 is a 1A high accuracy, low noise, high PSRR linear regulator with 200mV maximum dropout voltage. JWQ7821 supports input voltage ranges from 2.2 V to 5.5 V and adjustable output voltage range from 0.8 V to 5V. Low noise, high PSRR and high current capability makes JWQ7821 ideal power supply for noise sensitive applications, such as VCO, PLL, ADC and CMOS sensor. Accurate output voltage tolerance and excellent transient response ensures JWQ7821 optimal power supply for processors and digital loads, such as ASIC, FPGA, CPLD and DSP. JWQ7821 provides 3mm×3mm DFN-8 package with guaranteed operating junction temperature range (TJ) from -40°C to +125°C.

Published: Dec 6, 2025 |