50 out linear remA, 24 V, 3.2-μA Iq, low-dropgulator TPS715 offers high input voltage in a miniature package

This post sponsored by Texas Instruments.

The TPS715xx low-dropout (LDO) voltage regulators offer the benefits of high-input voltage, low-dropout voltage, low-power operation, and miniaturized packaging (SC70). 

The devices, which operate over an input range of 2.5 V to 24 V, are stable with any capacitor (≥ 0.47 µF). The low-dropout voltage and low-quiescent current allow operations at extremely low power levels. Therefore, the devices are ideal for powering battery management ICs. Specifically, since the devices are enabled as soon as the applied voltage reaches the minimum input voltage, the output is quickly available to power continuously operating battery charging ICs. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the low dropout voltage, typically 415 mV at 50 A of load current, is directly proportional to the load current. The low-quiescent current (3.2 µA typically) is stable over the entire range of output load current (0 mA to 50 mA). TPS715 is designed to support MSP430 families. It has an operating temperature range of -40°C to +125°C.

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