The AP1510 is a PWM control 3A step-down converter with an input voltage range of 3.6V to 23V and an output voltage range of 0.8V to VCC. The converter has an internal PWM control circuit that can vary the duty cycle linearly from 0% to 100%. It also has over current protection and short circuit protection. When OCP or SCP occurs, the operating frequency will be reduced from 300kHz to 30kHz. Additionally, an internal compensation block is built in to minimize external component count. With the addition of an internal P-channel Power MOSFET, an inductor, capacitors, and a diode connected externally, these ICs can function as step-down switching regulators. When coupled with the SOP-8L package, they serve as ideal power supply units for portable devices, providing such outstanding features as low current consumption.
The AP1510 is a DC‑DC step‑down switching regulator that uses pulse‑width modulation to provide a low‑ripple output over a wide input voltage range. It integrates a reference voltage source, error amplifier, internal P‑channel MOSFET and protection functions such as current limit, enable, and thermal shutdown. The device operates at a typical 300 kHz switching frequency and is supplied in a lead‑free SOP‑8L package.
Typical applications include cellular phones, PC motherboards, LCD monitors, graphics cards, DVD‑Video players, telecom equipment and other peripheral devices. The datasheet provides detailed electrical characteristics, recommended operating conditions, layout guidelines and marking information for designers.
| Input voltage range | 3.6 V to 23 V |
|---|---|
| Output voltage range | 0.8 V to Vcc |
| Maximum output current | 3 A |
| Typical switching frequency | 300 kHz |
| Operating temperature range (junction) | -20 °C to +125 °C |
| Package type | SOP‑8L lead‑free |
| Efficiency (minimum) | ≈12 % |
The AP1510 operates with an input voltage from 3.6 V up to 23 V.
The device includes current‑limit, enable, thermal‑shutdown and short‑circuit protection functions.
It is supplied in a lead‑free SOP‑8L package.
The typical oscillation (switching) frequency is 300 kHz.