LDQ40 LDO Linear Regulators

STMicroelectronics' high-accuracy voltage regulator provides 250 mA of current

STMicroelectronics' LDQ40 is a high-accuracy voltage regulator that provides 250 mA of current. It is available in SOT23 5L, DFN2x2 6L package to maximize space saving.

The device is stabilized with a small ceramic capacitor on the output. The low drop, low quiescent current, and short-circuit protection make the LDQ40 suitable for low-power battery-operated applications.

An enable logic control function puts the LDQ40 in shutdown mode, allowing a total current consumption lower than 0.3 μA. Thermal protection is also included.

Features

• AEC-Q100 Grade 1 qualified

• Operating temperature range: -40°C < TJ < +150°C

• Input voltage range: 3.3 V to 40 V

• Low ground current: 2 μA typ. at no load

• Output voltage: 1.8 V, 2.5 V, 3.3 V, 5.0 V, and ADJ from 1.2 V to 12 V

• Output voltage tolerance: ±1.5% overtemperature, ±0.5% at +25°C

• 250 mA guaranteed output current

• Power Good for fixed versions

• Logic-controlled electronic shutdown

• Internal current limit

• Short-circuit protection

• Thermal shutdown

• Output active discharge function

• Package options:

- SOT23-5L, DFN 2x2 6L for industrial applications

- DFN 2x2 6L WF for automotive grade