Diodes IncorporatedAP64502QSP-13直流-直流转换器和开关调节器芯片

AP6450xQ Synchronous Buck Converters for Automotive Applications

Diodes Incorporated’s AP6450xQ series introduces high efficiency, wide input voltages, and programmable and synchronizable fSW (AP64500Q/AP64502Q) frequencies for automotive applications such as infotainment power supplies and forward lighting POLs. The series includes parts (AP64500Q/AP64502Q) with special gate drive/bootstrap designs that enable operation in LDO mode, with near 100% duty cycle. Additionally, both the AP64501Q and AP64502Q have programmable soft-start that reduces inrush currents, while the AP64500Q and AP64501Q have external compensation to optimize loop responses.

Applications

•  Automotive infotainment power supplies
•  Automotive forward lighting point of loads

Application Photos

Features and Benefits

●  VIN 3.8V to 40V
  ○  Works across the wide automotive battery range including load dump
●  Wide Output Voltage Range: to near 100% of VIN (LDO Mode)
  ○  Maintains regulation even as VIN approaches VOUT
●  Low (25μA) Quiescent Current (IQ) and 1μA Shutdown Current
○  Enables the system to meet <100µA standby requirements of some automotive applications
●  Programmable and Synchronizable fSW (AP64500Q/AP64502Q)
  ○  Low frequency from 100kHz – high-efficiency solution
  ○  High frequency up to 2.2MHz – small-form factor solution
●  External Compensation (AP64500Q/AP64501Q)
  ○  Enables optimization of loop response
●  Programmable Soft-Start Time (AP64501Q/AP64502Q)
  ○  Reduces inrush current at power-up or enable of device

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Series Parts

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