开关稳压器 BUCK CONV PWM 150KHz 3A 4.5-40V 1.23V
General Description
The AP1501 is a fully integrated step-down DC/DC converter, with the ability to drive 3A load without the need of additional driver components. The AP1501 operates at a switching frequency of 150KHZ enabling the use of small size filter components. As a result, board space is reduced and BOM costs are lowered.
Features
• 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: 3A
• Low power standby mode
• Built-in switching transistor on chip
• Lead Free packages: TO263-5L and TO220-5LR
• TO263-5L and TO220-5LR: Available in “Green” Molding Compound No Br, Sb
• Lead Free Finish/RoHS Compliant Note 1
Applications
• Simple High-efficiency step-down regulator
• On-card switching regulators
• Positive to negative converter