AP3429A 3.3V DC-DC 스텝다운 벅 컨버터 -3.3V, 1.2A
(AP3429A 3.3V Buck Converter Breakout - 3.3V Output 1.2A Max)
개요
- 본 제품은 AP3429A 3.3V DC-DC 스텝다운 벅 컨버터 -3.3V, 1.2A입니다.
- AP3429A칩을 기반으로 3.4V-5.5V를 입력받아 3.3V로 출력하여 주는 제품입니다.
- 최대 1.2A를 지원합니다.
특징
- Output Current: Up to 1.2A
- Shutdown Current: <1μA
- 100% Duty Cycle Operation
- 1MHz Switching Frequency
- Internal Soft Start
- Short Circuit Protection: Hiccup Mode Protection
- Over Voltage Protection: AP3429A: No Latch Off Protection
- Thermal Shutdown
- Product Dimensions: 15.2mm x 10.0mm x 2.9mm / 0.6" x 0.4" x 0.1"
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This little buck converter based on the AP3429A is super handy, taking up to 5.5V input and providing a 3.3V output with up to 1.2A current. It's great for supplying power to popular 3.3V voltage circuits from a range of battery or power options. This chip provides up to 1.2 Amp load current across the entire input voltage range of 3.4 to 5.5V. It's not a huge range but does cover LiPoly batteries, 3 alkalines, and USB power.
Great for your portable project, we made this "pin compatible" with the LM1117-3.3V TO-220 chip so you can swap it in for better performance (90-95% efficiency!) There's also an ENable pin, tie it low to shut down the output completely.
The Adafruit AP3429A Breakout runs at 1-MHz fixed-frequency. Even though the chip itself supports up to 2A, the inductor we used is small and so the breakout can only provide about 1.2 Amps.
If you need a wider input range, check out the 3.3V output MPM3610 breakout with up to 20V input!
Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard.
문서
- n/a