LDLN025J18R

LDLN025J18R is a 250mA ultra low noise LDO able to work with an input voltage range from 1.5V to 5.5V. The typical dropout voltage at 250mA load is 120mV. The very low quiescent current, which is just 12μA at no-load, extends battery-life of applications requiring very long standby time. Due to its ultra low noise value and high PSRR, the LDLN025 provides a very clean output, suitable for ultra-sensitive loads. It is stable with ceramic capacitors. The enable logic control function puts the device into shutdown mode allowing a total current consumption lower than 1μA. The device also includes short-circuit and thermal protection. Typical applications are noise sensitive loads such as ADC, VCO in mobile phones and tablets, wireless LAN devices. The LDLN025 is designed to keep the quiescent current under control and at a low value also during dropout operation, extending the operating time of battery-powered devices.

• Ultra low output noise is 6.5μVRMS
• Controlled Iq in dropout condition
• Very high PSRR: 80dB at 100Hz, 60dB at 100KHz
• Output voltage is 1.8V with accuracy 2% across line, load and temperature
• Logic-controlled electronic shutdown
• Output discharge feature
• Internal soft-start
• Overcurrent and thermal protections
• Temperature range from -40°C to +125°C