AP1580 Datasheet | Diodes Incorporated

Features - - - - - - - - - - - Input Voltage: 10V to 40V Adjustable Output Voltage from 0.8V to 0.9Vcc Duty Ratio: 0% to 90% PWM control Oscillation Frequency: 300KHz typical Short Circuit Protect Frequency: 30 KHz 2u A Maximum Standby Current Current Limit, Enable Function Thermal Shutdown Function Built-in Internal SW N-channel MOS Lead Free Finish/Ro HS pliant for Lead Free products (Note 1) Lead-Free Package: SOP-8L General Description AP1580 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier and internal NMOS. AP1580 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 90%. 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 300 KHz to 30 KHz. Also, an internal pensation block is built to minimize external ponent count. With built-in power NMOS, a step-down switching regulator is easy to be built by adding a coil, capacitors and a diode. The high efficiency (>90%), low standby current, high input voltage (40V) and output current (3A) bining with small SOP-8L package give AP1580 unprecedented advantage in high power system applications. Applications - - - - Microprocessor Core Supply Networking Power Supply LCD MNT, TV Power Supply Tele Power Supply Ordering Information AP 1580 X X X Packing S: SOP- 8L L : Lead Free - U : Tube -13 : Taping Note: 1. Ro HS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Package Lead - Free Device Lead-free Package Code Packaging (Note 2) SOP-8L Tube Part Number Quantity Suffix 100 -U 13” Tape and Reel Part Number Quantity Suffix 2500/Tape & Reel -13 AP1580S Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout...