AP1513SL-13

AP1513 PWM CONTROL 2A STEP-DOWN CONVERTER Description Pin Assignments AP1513 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier, and internal PMOS. (Top View) AP1513 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and 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, these ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devices when coupled with the SO-8 mini-package, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage up to 18V, it is also suitable for the operation via an AC adapter. Features        Input Voltage: 3.6V to 18V Output Voltage: 0.8V to VCC Duty Ratio: 0% to 100% PWM Control Oscillation Frequency: 300kHz Typ Soft-start, Current Limit, Enable Function Thermal Shutdown Function Built-in Internal SW P-channel MOS  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free.“Green” Device (Note 3) Notes: 1. 2. 3. 8 VSS 7 VSS OCSET 3 6 Output VCC 4 5 Output FB 1 EN 2 AP1513 SO-8 Applications          PC Motherboard LCD Monitor Graphic Card DVD-Video Player Telecom Equipment ADSL Modem Printer and Other Peripheral Equipment Microprocessor Core Supply Networking Power Supply No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free,"Green" and Lead-free. Halogen- and Antimony-free "Green” products are defined as those which contain