AP65352SP-13

NOT RECOMMENDED FOR NEW DESIGN USE AP65353 AP65352 3A, 18V, 650kHz ADAPTIVE COT STEP-DOWN CONVERTER Description Pin Assignments The AP65352 is an adaptive, constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TVs and monitors. ( Top View ) The constant-on-time control scheme handles wide input/output voltage ratios and provides low external component count. The internal proprietary circuit enables the device to adopt both low equivalent series resistance (ESR) output capacitors, such as SP-CAP or POSCAP and ultra-low ESR ceramic capacitors. EN The AP65352 also features programmable soft-start, UVLO, OTP, OVP and OCP to protect the circuit. 1 FB 2 VREG5 3 SS 4 AP65352 operates in continuous conduction mode (CCM) in light load conditions for better EMI performance. AP65353 and AP65355 are the options for light-load efficiency enhancement. Exposed Pad 9 8 VIN 7 BST 6 SW 5 PGND SO-8EP This IC is available in SO-8EP package. Features Applications      Gaming Consoles         Flat Screen TV Sets and Monitors Set-Top Boxes Distributed Power Systems Home Audio Consumer Electronics Network Systems FPGA, DSP and ASIC Supplies Green Electronics            Fixed Frequency Emulated Constant On-Time Control Good Stability Independent of the Output Capacitor ESR Fast Load Transient Response Synchronous Rectification: 90mΩ Internal High-Side Switch and 57mΩ Internal Low-Side Switch Wide Input Voltage Range: 4.5V to 18V Output Voltage Range: 0.76V to 6V 3A Continuous Output Current 650kHz Switching Frequency Built-in Overcurrent Limit Built-in Overvoltage Protection Built-in Thermal Shutdown Protection Programmable Soft-Start Pre-Biased Start-Up Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. 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. 3. Halogen- and Antimony-free "Green” products are defined as those which contain