STMicroelectronics STLQ020 low-dropout voltage regulator

Click2Contact

STMicroelectronics’ STLQ020 low-dropout (LDO) voltage regulator relieves the familiar trade-offs between quiescent current, output power, dynamic response and package size, to give designers extra freedom.

By combining small size with high performance and energy efficiency, the product is suitable for use in battery-powered consumer products like smartphones and tablets, smart watches, audio or media devices, and wearables. It helps extend battery life in IoT endpoints such as smart meters and wireless sensors, healthcare devices like wearable monitors, and industrial applications such as factory automation or sensor networking.

Drawing 300 nA quiescent current (Iq), and capable of supplying up to 200 mA to the load with good regulation, power-supply rejection (PSRR) and transient response, the regulator is available in a choice of compact packages reaching as small as a 0.8 x 0.8 mm flip-chip4.

The product features dedicated low-power design and adaptive bias circuitry, which ensures fast response and a stable output with high PSRR. In addition, dropout voltage as low as 160 mV (typical) at maximum load allows long equipment runtimes as the battery discharges. Also, with the advantage of its 5 nA logic-controlled shutdown mode, the device can extend the interval between coin-cell replacements in low-duty-cycle applications like remote sensors.

With an input voltage range of 2–5.5 V, the product can be powered directly from a suitable battery voltage (VBAT) or logic rail. The output voltage can be set between 0.8 and 4.5 V, with either fixed-output or adjustable-output versions available. The fixed output voltages are selectable in 50 mV increments.

For more information, click here.