AP3405 Step-Down DC-DC Converter

By Diodes Incorporated 53

AP3405 Step-Down DC-DC Converter

Diodes' AP3405 is highly integrated with a 2.0 MHz fixed frequency, current-mode, PWM synchronous buck (step-down) DC-DC converter.  It is capable of driving a 600 mA load with high efficiency and excellent line and load regulation. The device’s high efficiency is easily configured by using external components. Current-mode control provides fast transient response and cycle-by-cycle current limit.

The AP3405 employs complete protection to ensure system security; including input under-voltage lockout (UVLO), over-temperature protection, and hiccup mode short-circuit protection. The device is targeted at cell phone, tablet, and netbook applications. It is available in the space-saving, industry-standard U-DFN2020-8 package.

Features
  • High-efficiency buck power converter
  • Input voltage range: 2.3 V to 5.5 V
  • Output voltage range: 0.7 V to 5.5 V
  • Fixed 2.0 MHz oscillator frequency
  • Built-in soft-start time
  • Built-in over-current protection
  • Built-in thermal shutdown function
  • Built-in UVLO function
  • Hiccup mode SCP
  • Output current: 600 mA
  • Package: U-DFN2020-8 (type E)
  • Totally lead-free and fully RoHS-compliant
  • Halogen- and antimony-free “green” device
Applications
  • Post DC-DC voltage regulation
  • Mobile phones and wearable devices

New Products:

AP3405SHE-7

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