Pololu 5V Step-Up Voltage Regulator NCP1402
This compact step-up (or boost) regulator generates 5 V from voltages as low as 0.8 V and delivers up to 200 mA, making it perfect for powering small 5 V electronics projects from 1 to 3 NiMH, NiCd, or alkaline cells or from a single lithium-ion cell.
These tiny boost (step-up) switching regulators are based on the NCP1402 boost regulator IC. Their small dimensions of just 0.33″ × 0.5″ (8.4 mm × 12.7 mm) and a startup voltage of down to 0.8 V make it easy to build 3.3 V and 5 V circuits that are powered by lower battery voltages. The available output current and output voltage ripple depend on the input voltage, but the regulator can provide up to 200 mA if the input voltage is high enough.
With low input voltages, the output voltage ripple is under 40 mV peak-to-peak. When the input voltage is close to the output, the output ripple quickly climbs to 150 mV peak-to-peak. Therefore, adding capacitance from the output to ground is recommended for noise-sensitive applications with input voltages close to the output voltage.
Some example applications include:
- Powering 3.3 V or 5 V systems from lower-voltage batteries.
- Powering higher-voltage subsystems in lower-voltage systems (e.g. powering a 5 V sensor in a 3.3 V system).
|Size:||0.5" x 0.33" x 0.15"|
|Minimum operating voltage:||0.8 V|
|Maximum operating voltage:||5 V|
|Maximum output current:||200 mA|
|Output voltage:||5 V|
|Reverse voltage protection?:||N|
|Maximum quiescent current:||3 mA|
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