AP1530 18V 3A 300KHz BUCK CONVERTER is a low-voltage drop, high-efficiency switching regulator from Diodes Incorporated. The device features an internal SW P-channel MOS and 300kHz PWM control, providing low ripple, high efficiency, and excellent transient characteristics.
The AP1530 is an 18 V, 3 A buck (step‑down) DC‑DC converter that uses PWM control to provide a low‑ripple, high‑efficiency output. It integrates a P‑channel MOSFET, feedback circuit, and protection functions such as current limit, enable, and thermal shutdown. The device is supplied in a lead‑free SOP‑8L package.
Typical applications include motherboard power, LCD monitors, graphics cards, DVD‑Video players, telecom equipment, and other peripheral devices. The datasheet includes pin assignments, recommended external components, PCB layout guidelines, and performance graphs to aid designers in implementing the regulator.
| Input voltage range | 3.6 V to 18 V |
|---|---|
| Output voltage range | 0.8 V to Vout (adjustable) |
| Maximum output current | 3 A |
| Typical switching frequency | 300 kHz |
| Efficiency (3 A load) | ≈92 % |
| Package type | Lead‑free SOP‑8L |
| Operating temperature range (junction) | -40 °C to +125 °C |
The AP1530 operates from 3.6 V up to 18 V input.
The converter typically oscillates at 300 kHz.
The device is supplied in a lead‑free SOP‑8L package.