POLOLU-2873 3.3V Step-Up/Step-Down Voltage Regulator w/ Fixed 3V Low-Voltage Cutoff S9V11F3S5C3 The S9V11F3S5C3 switching step-up/step-down regulator efficiently produces a fixed 3.3 V (default) or 5 V (selectable) output whether it is higher or lower than the input voltage, which can range from 3 V to 16 V. The regulator also has fixed 3.3 V low-voltage cutoff with hysteresis that can be used to prevent battery over-discharge. The compact (0.5″ × 0.6″) module can supply a typical output current of up to 1.5 A when the input voltage is close to the output voltage. Features Input voltage 3 V to 16 V Fixed 3.3 V output with +5/-3% accuracy (can be changed to 5 V using the SEL pin) Typical maximum continuous output current 1.5 A (when input voltage is close to the output; the Typical efficiency and output current section below shows how the achievable continuous output current depends on the input and output voltages) Fixed 3 V low-voltage cutoff with hysteresis protects batteries from over-discharging (quiescent current is approximately 10 µA per volt on VIN when regulator is disabled) Power-good indicator can be used to tell when the regulator has reached and is maintaining its target output voltage Power-saving feature maintains high efficiency at low currents (quiescent current is less than 1 mA while enabled) Integrated over-temperature and short-circuit protection Small size 0.5″ × 0.6″ × 0.17″ (12.7 × 15.3 × 4.3 mm)
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