AP1510概述：3A，23V，300KHz同步整流降压DC-DC转换器
AP1510 consists of step-down switching regulator with PWM control. The AP1510 include a reference voltage source, oscillation circuit, error amplifier and internal PMOS. AP1510 provides low-ripple power, high efficiency and excellent transient characteristics. AP1510 PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. The AP1510 also contains an error amplifier circuit. An enable function, an over current protection and a short circuit protection are built inside, when OCP or SCP happens, the operation frequency will be reduced from 300kHz to 30kHz. Also, an internal compensation block is built in to minimum external component count. 
With the addition of an internal P-channel Power MOS, a coil, capacitors, and a diode connected externally, AP1510 can function as step-down switching regulators. They serve as ideal power supply units for portable devices when coupled with the SOP-8L package, providing such outstanding features as low current consumption. Since AP1510 can accommodate an input voltage up to 23V, it is also suitable for the operation via an AC adapter.

AP1510技术特性
• AP1510  Input voltage: 3.6V to 23V
• AP1510  Output voltage: 0.8V to VCC.
• AP1510  Duty ratio: 0% to 100% PWM control
• AP1510  Oscillation frequency: 300kHz typ.
• AP1510  Current Limit, Enable function
• AP1510  Thermal Shutdown function
• AP1510  Built-in internal SW P-channel MOS
• SOP-8L Pb-Free Package
• SOP-8L: Available in “Green” Molding Compound (No Br, Sb) 
• Lead Free Finish/ RoHS Compliant

AP1510应用领域
• Cellular Phones
• PC Motherboard
• LCD Monitor
• Graphic Card
• DVD-Video Player
• Telecom Equipment
• ADSL Modem
• Printer and other Peripheral Equipment
• Microprocessor core supply
• Networking power supply