AP1501A-33T5G-U

AP1501A 150kHz, 5A PWM BUCK DC/DC CONVERTER Description Pin Assignments The AP1501A series are monolithic ICs that are designed for a stepdown DC/DC converter, and possess the ability to drive a 5A load without additional transistor component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes feedback control have good line and load regulation without external design. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch. The AP1501A series operates at a switching frequency of 150kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. The output version includes fixed 3.3V, 5V, 12V and an adjustable type. The packages are available in a standard 5-lead TO263-5, TO220-5 and TO220-5 (R) packages. (Top View) 5 SD 4 FB 3 Gnd 2 Output 1 VIN Metal Tab GND TO263-5 (Top View) 5 SD 4 FB 3 Gnd 2 Output 1 VIN Features TO220-5/TO220-5 (R)  Output Voltage: 3.3V, 5V, 12V and Adjustable Output Version  Adjustable Version Output Voltage Range, 1.23V to 37V±4%  150kHz ±15% Fixed Switching Frequency  Voltage Mode Non-synchronous PWM Control  Thermal-shutdown and Current-limit Protection  ON/OFF Shutdown Control Input  Operating voltage can be up to 40V  Output Load Current: 5A  Low power Standby Mode  Built-in Switching Transistor On Chip  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. ‘’Green’’ Devices (Note 3) Notes: Applications  Simple High-efficiency Step-down Regulator  On-card Switching Regulators  Positive to Negative Converter 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