STMicroelectronics

The LD59015 provides 150 mA maximum current with an input voltage range from 2.4 V to 5.5 V, and a typical dropout voltage of 150 mV. It is stable with ceramic capacitors. High PSRR, low quiescent current and low noise features make it suitable for low power battery-powered applications. Power supply rejection is 80 dB at low frequency and starts to roll off at 10 kHz. The enable logic control function puts the LD59015 in shutdown mode, allowing a total current consumption lower than 1 μA. The device also includes short-circuit constant current limiting and thermal protection. Typical applications are mobile phones, personal digital assistants (PDAs), cordless phones and similar battery-powered systems.

The LD59030 high accuracy voltage regulator provides 300 mA of maximum current from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of 135 mV at VOUT= 3.3 V. It is available in DFN4 1x1 package, allowing the maximum space saving. The device works with a ceramic capacitor on the output. The ultra-low drop voltage, low quiescent current and low noise features, together with the internal soft-start circuit and output current fold-back protection, make the LD59030 suitable for low power battery-operated applications. An enable logic control function puts the LD59030 in shutdown mode allowing a total current consumption lower than 0.03 µA.

The LD59100 is a 1 A LDO regulator designed for use in various environments. Its N-MOS topology allows reduction of the Rdsonof the pass-element, maintaining a very low-dropout voltage even with very low input power supply voltage. The device features very high PSRR characteristics over a wide frequency band, rendering it suitable for use as a secondary regulator for noise-sensitive applications. The enable function can be used to further decrease the overall current consumption in shutdown mode. The LD59100 embeds protection features, such as current limit, thermal shutdown and reverse output current protection.

The LD59150 is a 1.5 A LDO regulator, designed to be used in several environments. Two versions, Industrial and AEC-Q100 are available. NMOS topology allows RDS(on) of the pass-element to be reduced, which results in a very small dropout voltage even with a very low input supply voltage. Output voltage can be adjusted from 0.8 to 3.6 V, by an external resistor divider. The programmable soft-start circuit offers the possibility to control the inrush current at start-up providing a monotonic supply voltage to the load. The LD59150 has enable pin to turn on/off (EN) the regulator and Power Good to monitor the regulated output voltage (PG). The combination of both can be used to set a desired power sequence in case of multiple regulated rails. The LD59150 embeds protection functions, such as: current limit and thermal shutdown.