The NCP1402 series is a single chip micro power boost DC-DC converter designed for applications that power portable devices through one or two batteries. This series of devices are designed to start with a battery voltage of 0.8V, can work with a voltage below 0.3V, only three external components, can simply achieve the function of high efficiency converter, when Vin = 2.0V, VOUT = 3.0V, the output current can reach 200mA.
The NCP1402 series is a single‑chip, low‑power DC‑DC converter that delivers up to 200 mA with a very low quiescent current. It operates from input voltages as low as 0.8 V and can generate output voltages from 1.8 V to 5.0 V, using only three external components. The device is offered in a thin SOT‑23‑5 package and includes internal PFM control, a comparator, and protection features.
Key electrical characteristics include a typical switch‑on time of 3.6 µs, a maximum duty cycle of up to 85 %, and a minimum start‑up voltage of about 0.85 V. The part is rated for operation from –40 °C to +125 °C and meets HBM 2 kV and MM 200 V ESD protection standards. This manual is written in Chinese.
| Output voltage range | 1.8 V – 5.0 V |
|---|---|
| Maximum output current | 200 mA |
| Package | SOT‑23‑5 |
| Switch‑on time (no current limit) | 3.6 µs |
| Maximum duty cycle | 70 % – 85 % |
| Minimum start‑up voltage (Io = 1 mA) | 0.85 V |
| Operating temperature range | -40 °C to +125 °C |
The NCP1402 can deliver up to 200 mA of output current.
It is supplied in a thin SOT‑23‑5 surface‑mount package.
The device works with input voltages from about 1.8 V up to 5.0 V.