CM3015

• 300mA output current capability
  
  • 300mA peak in SOT-23 package
  • 300mA continuous in MSOP package
• 300mV maximum dropout voltage at full load
• Excellent line and load regulation
• Stable with any output capacitor
• Ultra low noise with optional bypass capacitor
• Fast power-up with bypass capacitor
• "Zero" current in Shutdown mode
• Thermal Overload Protection
• Foldback Current Limiting Protection
• Reverse current protection

The CM3015 is a CMOS linear voltage regulator with low quiescent current, very low dropout voltage and better than 1% fixed output voltage accuracy. The CM3015 ground current is typically 150µA at light loads and only 165µA at 300mA.

Load regulation of 0.25% is maintained for peak currents up to 300mA. This is useful for supplying in-rush currents during power-up and transient conditions. The continuous output current is determined by power dissipation, package type and board layout.

A dedicated control input (EN, Active High) has been included for power-up sequencing flexibility. When this input is taken low, CM3015 regulator is disabled and the supply current will drop to near zero.

The CM3015 also features reverse current protection. This protects the device by blocking the pass transistor&primes parasitic diode when the output voltage is forced higher than the input. The device also incorporates overload current limiting and high temperature thermal shutdown protection.

For low noise performance and increased power supply ripple rejection, a bypass capacitor CM3015 can be connected to the BYP pin. Connecting this capacitor will not significantly delay the speed of power-up.

To reduce board cost and layout size the CM3015 was designed to be stable with or without any output capacitor. This includes tiny, low ESR ceramic capacitors. The CM3015 is available in a low profile, 8-lead MSOP package and 5 and 6-lead SOT23 packages making it ideal for space critical applications.