<div id="readability-page-1">PLANO, Texas--(BUSINESS WIRE)-- Diodes Incorporated ( DIOD ) today introduces the AP61406Q, a new 5.5V, 4A member with I2C interface of its low quiescent current (IQ), automotive-compliant* synchronous buck converters. The I2C interface allows the programming of various parameters enabling it to meet the growing demand for compact design and high efficiency in various automotive point-of-load (POL) applications, including infotainment, instrument clusters, telematics, and advanced driver assistance systems (ADAS). A key advantage of the AP61406Q is its I2C 3.0-compatible serial interface, which supports SCL clock rates up to 3.4MHz. This interface enables programmability for various parameters, including PFM/PWM modes, frequencies (1MHz, 1.5MHz, 2MHz, 2.5MHz), and output currents (1A/2A/3A/4A). The device also provides 20mV increment VOUT adjustability and provides fault status reports. Optimized for high power density automotive POL applications, the AP61406Q is available in a W-QFN1520-8/SWP (Type UX) package, enabling it to operate at high ambient temperatures. The device also features a proprietary gate driver scheme that effectively resists switching node ringing without compromising MOSFET turn-on and turn-off times, thereby reducing high frequency radiated EMI noise. The AP61406Q operates with an input voltage range of 2.3V to 5.5V. It integrates a 75mΩ high-side and a 33mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. Its adoption of constant on-time (COT) control minimizes external component count, facilitates loop stabilization, and results in low output voltage ripple. The multi-function enable (EN) input also provides control of the mode of operation. This capability enables flexibility for low IQ (20µA), high-load efficiency in fixed PFM mode or equal ripple across load conditions in PWM mode. Additional features include an accurate power good (PG) indicator with an internal 5MΩ pull-up resistor with a ±5% window comparator circuit, which reduces bill-of-materials (BOM) costs. The AP61406Q has high-side and low-side current sense protection during output short circuits, increasing its reliability in automotive POL applications. Other protection features include undervoltage lockout (UVLO), VIN overvoltage protection (OVP), peak and valley current limiting, and thermal shutdown. The AP61406Q is available at $0.24 in 1,000-piece quantities. A standard compliance version, AP61406, is available and suitable for industrial and consumer applications. For further information, please visit: https://www.diodes.com/products/power-management/dc-dc-converters/integrated-power-stage/buck-converter/ About Diodes Incorporated ( DIOD ) Diodes Incorporated ( DIOD ) , a Standard and Poor’s SmallCap 600 and Russell 3000 Index company, delivers high-quality semiconductor products to the world’s leading companies in the automotive, industrial, computing, consumer electronics, and communications markets. We leverage our expanded product portfolio of analog and discrete power solutions combined with leading-edge packaging technology to meet customers’ needs. Our broad range of application-specific products and solutions-focused sales, coupled with global operations including engineering, testing, manufacturing, and customer service, enable us to be a premier provider for high-volume, high-growth markets. For more information, visit www.diodes.com. *Automotive-compliant - AEC qualified, manufactured in facilities certified to IATF 16949, supporting PPAP documents. The Diodes logo is a registered trademark of Diodes Incorporated ( DIOD ) in the United States and other countries. All other trademarks are the property of their respective owners. © 2025 Diodes Incorporated ( DIOD ). All Rights Reserved. <img src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1hY3FyOCZzdHk9MjAyNTEyMDQ5NzEwODlyMQ?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" original-src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1hY3FyOCZzdHk9MjAyNTEyMDQ5NzEwODlyMQ"/>View source version on businesswire.com: https://www.businesswire.com/news/home/20251204971089/en/ Source: Diodes Incorporated ( DIOD )</div>

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Diodes Incorporated 推出了 AP61406Q，这是一款 5.5V、4A 的同步降压转换器，配备 I2C 接口，专为汽车负载点系统优化。它提供了多种参数的可编程性、高效率和紧凑设计，适用于信息娱乐和高级驾驶辅助系统（ADAS）等应用。该设备具有高功率密度、EMI 噪声降低和多重保护功能，单价为 0.24 美元（以 1,000 件为单位）

5.5V, 4A, Low IQ Synchronous Buck Converter with Versatile I2C Interface from Diodes Incorporated is Optimized for Efficiency and Size in Automotive POL Systems

Diodes 公司推出的 5.5V、4A、低静态电流同步降压转换器，配备多功能 I2C 接口，专为优化汽车负载点系统的效率和尺寸而设计