Description

The AP1506-50T5L is part of the AP1506 series, a monolithic IC designed for a step-down DC/DC converter with the ability to drive a 3A load without external transistor. With reduced external components, it saves board space easily. It has an external shutdown function and internal compensation for feedback control. The AP1506 series operates at a switching frequency of 150KHz, allowing smaller sized filter components than what would be needed with lower frequency switching regulators. The packages are available in a standard 5-lead TO-220, a 5-lead TO-263, or an 8-lead PDIP. The product category is IC Chips.

Specifications and features

• Output voltage: 3.3V, 5V, 12V, and adjustable output version
• Adjustable version output voltage range, 1.23V to 18V+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 22V
• Output load current: 3A
• TO220-5L, TO263-5L, and PDIP-8 packages
• Low power standby mode
• Built-in switching transistor on chip

Application Scenarios

• Simple High-efficiency step-down regulator
• On-card switching regulators
• Positive to negative converter

Comparison

• Can drive a 3A load without external transistor
• Reduced external component, saving board space easily
• Operates at a switching frequency of 150KHz, allowing smaller sized filter components than what would be needed with lower frequency switching regulators
• Guaranteed +4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on the oscillator frequency

• None identified