RT9078-12GQZ

The RT9078-12GQZ from Richtek is a 300mA low dropout (LDO) linear regulator without SNS (output voltage sense) pin in 4 pin ZQFN package. This regulator with enable function operates from 1.2V to 5.5V. It provides up to 300mA of output current and offers low power operation in miniaturized packaging. The features of low quiescent current as low as 2μA and almost zero disable current is ideal for powering the battery equipment to a longer service life. The RT9078 is stable with the ceramic output capacitor over its wide input range from 1.2V to 5.5V and the entire range of output load current (0mA to 600mA). The minimum required output capacitance for stable operation is 1μF effective capacitance after consideration of the temperature and voltage coefficient of the capacitor.

• 2μA ground current at no Load
• Power supply rejection ratio (PSRR) of 75dB at 1KHz
• Fixed output voltage of 1.2V and DC output accuracy of ±2% at ILOAD = 1mA
• 300mA (VIN ≥ 1.7V) output current with EN and low (0.1μA) disable current
• Current limit protection, overtemperature protection, stable with ceramic or tantalum capacitor
• Dropout voltage of 0.4V at 300mA
• VCC consumption current of 2μA and shutdown GND current of 0.1μA
• Output voltage noise of 46μVRMS (COUT = 1μF, ILOAD = 150mA, BW = 10Hz to 100KHz, VIN = VOUT + 1V)
• Line regulation of 0.3% at ILOAD = 1mA and load regulation of 0.5% at 1mA <lt/> ILOAD <lt/> 300mA
• Ambient temperature range from -40°C to 85°C

Applications

Power Management, Portable Devices, Consumer Electronics

Warnings

ESD sensitive device. Handling precautions are recommended.