Diodes Incorporated AP63300/01 Synchronous Buck Converters
Diodes Incorporated AP63300/01 Synchronous Buck Converters deliver 3A continuous output current with a 3.8V to 32V wide input range. These converters provide high efficiency step-down DC-DC conversion through full integration of 75mΩ high-side power MOSFET and a 40mΩ low-side power MOSFET. The design of these converters is optimized for Electromagnetic Interference (EMI) reduction and a proprietary gate driver scheme resists switching-node ringing without sacrificing MOSFET turn-on/off times. This reduces high-frequency radiated EMI noise caused by MOSFET switching.
The AP63300 offers Pulse Frequency Modulation (PFM) with up to 88% efficiency @5mA light-load, whereas the AP63301 supports Pulse Width Modulation (PWM) regardless of output load. These buck converters exhibit a protection circuitry that includes Under-Voltage Lockout (UVLO), Output Overvoltage Protection (OVP), cycle-by-cycle peak current limit, and thermal shutdown. The AP63300/01 synchronous buck converters come in an industrial standard TSOT26 package. Typical applications include distributed power supplies, flat-screen TVs and monitors, home audio, network systems, gaming consoles, power tools, laser printers, and consumer electronics.
Features
- VIN 3.8V to 32V
- 3A continuous output current
- 0.8V ± 1% reference voltage
- 22µA low quiescent current (PFM)
- 500kHz switching frequency
- Supports Pulse Frequency Modulation (PFM)
- AP63300
- Up to 88% efficiency at 5mA light load
- Pulse Width Modulation (PWM), regardless of output load
- AP63301
- Proprietary gate driver design for EMI reduction
- Frequency Spread Spectrum (FSS) to reduce EMI
- AP63300
- Low-Dropout (LDO) mode
- Power good indicator with 5MΩ internal pull-up
- Precision enables the threshold to adjust UVLO
- Protection circuitry
- Undervoltage Lockout (UVLO)
- Output Undervoltage Protection (UVP)
- Cycle-by-cycle peak current limit
- Thermal shutdown
- Totally lead-free & fully RoHS compliant
- Halogen and antimony-free "Green" device
Applications
- 5V, 12V, and 24V distributed power Bus supplies
- Flat-screen tv sets and monitors
- Power tools and laser printers
- White goods and small home appliances
- FPGA, DSP, and ASIC supplies
- Home audio
- Network systems
- Gaming consoles
- Consumer electronics
- General-purpose point of load
Typical Application Circuit
Associated Boards
Diodes Incorporated Cartes d'évaluation AP63300/1-EVM
Évaluent les convertisseurs Buck synchrones 3 A AP63300/AP63301.