ST730M33R

ST730M33R is a 300mA LDO regulator, designed to be used in several medium voltage applications. Ultra-low quiescent current of 5μA makes it suitable for applications permanently connected to a power supply/battery. This feature is also useful when electronic modules remain permanently turned on. This device embeds protection functions, such as: current limit, short-circuit and thermal shutdown. The extended input voltage range, very low drop voltage and low quiescent current features make it suitable also for low-power after-market automotive and consumer applications. It is used in applications such as post regulation, electronic meters, smoke detectors / alarms, portable equipment, industrial applications.

• Wide input voltage range from 2.5V to 28V
• Output voltage accuracy is +0.5% maximum at (TA = +25°C)
• Stable with low ESR capacitors (0.47µF minimum), 3.3V output voltage
• Thermal shutdown protection, current limit and SOA protection
• Quiescent current is 5µA typical at (IOUT = 0mA, TA = +25°C)
• Supply voltage rejection is 75dB typ at (VIN = VOUT(NOM) + 1V +/- VRIPPLE VRIPPLE = 0.5V)
• Output noise voltage is 70µVRMS/VOUT typ at (f = 10Hz to 100KHz, IOUT = 10mA COUT = 1µF)
• Dropout voltage is 200mV typical at (IOUT = 100mA, VOUT = VOUT(NOM) - 0.1V, VOUT(NOM) ≥ 2.5V)
• Operating temperature range from -40°C to +125°C
• 5-lead SOT23 package