ZXLD1370Q

Document number: DS37117 Rev. 4 - 2

35 of 39

www.diodes.com

February 2018

© Diodes Incorporated

ZXLD1370Q

400mA Boost LED Driver Typical Performance

Figure 44 Efficiency

Figure 45 Line Regulation

Example 3: 700mA Buck-Boost LED Driver

In this application example, the ZXLD1370Q is connected as a Buck-Boost LED driver. The schematic and parts list are shown below. The LED

driver is able to deliver 700mA of LED current into 4 high-brightness LEDs with an input voltage range of 7V to 20V.

Since the Buck-Boost LED driver handles an input voltage range from below and above the total LED voltage, the versatile input voltage range

makes it ideal for automotive lighting applications.

Figure 46 Application Circuit - 700mA Buck-Boost LED Driver

Efficiency vs Input Voltage

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LED Current vs Input Voltage

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