STMicroelectronics LDK130

The LDK130 low drop voltage regulator provides 300 mA of maximum current from an input supply voltage in the range of 1.9 V to 5.5 V, with a typical dropout voltage of 100 mV. It is stabilized with a ceramic capacitor on the output.

The very low drop voltage, low quiescent current and low-noise features make it suitable for low-power battery-powered applications.

An enable logic control function puts the LDK130 in shutdown mode allowing a total current consumption lower than 1 μA.

The device also includes short-circuit constant current limiting and thermal protection.

Key features

• AEC-Q100 qualified (automotive grade 1, SOT23-5L package)
• Input voltage from 1.9 to 5.5 V
• Very low-dropout voltage (100 mV typ. at 100 mA load)
• Low quiescent current (typ. 30 μA, 1 μA in OFF mode)

Additional features

• AEC-Q100 qualified (automotive grade 1, SOT23-5L package)
• Input voltage from 1.9 to 5.5 V
• Very low-dropout voltage (100 mV typ. at 100 mA load)
• Low quiescent current (typ. 30 µA, 1 µA in OFF mode)
• Very low noise
• Output voltage tolerance: ± 2.0% at 25 °C
• 300 mA guaranteed output current
• Wide range of fixed output voltages available on request: from 0.8 V to 3.5 V with 100 mV step
• Adjustable version: from 0.8 V to VIN - Vdrop
• Logic-controlled electronic shutdown
• Compatible with ceramic capacitor C_OUT = 1 µF
• Internal current and thermal limit
• Available in SOT23-5L, SOT323-5L and DFN6 1.2x1.3 packages
• Temperature range: -40 °C to 125 °C

Applications

• Mobile phones
• Portable consumer and industrial devices
• Cordless phones and similar battery-powered systems
• Automotive P.O.L.
• A.D.A.S.