Torex Semiconductor
2019/01/10

AEC-Q100 Compliant, Automotive Integrated-Coil Step-down “micro DC/DC” Converters XDL601/XDL602 series

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Torex Semiconductor Ltd. (Tokyo Japan: President, Koji Shibamiya, 6616: 1st section at Tokyo Stock Exchange) has launched the XDL601/XDL602 series of HiSAT-COT (*) control and 1.5A coil-integrated step-down “micro DC/DC” converters for automotive applications.

The XDL601/XDL602 series consist of ultra-compact step-down DC/DC converters with integrated coils and control ICs. Simply adding two ceramic capacitors to their external components can make it possible to create a power supply circuit with a maximum of 1.5A, and a 50% or greater reduction in space compared to structures using stand-alone DC/DC converters. Since the coil is built-in, board layouts can be simplified to minimize malfunctions, noise, and other problems arising from component placement or wire routing.

The input voltage can range from 2.5V – 5.5V and the output voltage from 0.8V – 3.6V (standard voltage settings exist), with a switching frequency of 3.0MHz and a circuit system which employs synchronous rectification. The operating mode uses “HiSAT-COT (*) control” which has outstanding transient response characteristics, and allows either “PWM control” or “PWM/PFM automatic switching control” to be selected depending on the application. “PWM control” is capable of suppressing output ripple voltage to a low level, while “PWM/PFM automatic switching control” can achieve high efficiency over all load ranges from light to heavy loading.

The XDL601/XDL602 series are compliant with AEC-Q100 Grade 2, at an operating temperature range of -40℃to +105℃.

Their package is an ultra-compact DFN3625-11A (3.6 x 2.5 x h1.6mm) which uses a wettable flank structure (Figure 1). Fillets are formed at the sides of the terminal, allowing automatic visual inspections of solder joints to be performed.
 
(*) HiSAT-COT is a proprietary high-speed transient response technology for DC/DC converter which was developed by Torex. It is Ideal for the LSI's that require high precision and high stability power supply voltage.
 
Features of the XDL601/XDL602 Series
  • AEC-Q100 compliant step-down DC/DC solutions which are of the smallest class in the world
  • Low noise
  • Outstanding heat dissipation
  • Wettable flank structure
  • AEC-Q100 Grade 2 compliant
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