MP1720DQ-216-LF-P - 2.7W Mono Class-D Amplifier | MPS
料号： MP1720DQ-216-LF-P ✓ 量产中MP1720DQ-216-LF-P 概述
A Class-D amplifier is a switching audio-output stage whose transistor network continuously drives the speaker load. Its class hierarchy is Class-D amplifier → audio power amplifier → amplifier IC → analog and power-management semiconductor. Unlike a conventional linear Class-AB output stage, the MP1720 converts supply energy into audio output more efficiently, reducing heat and allowing a compact solution for portable and embedded speakers.
The verified manufacturer information identifies the MP1720 family as a high-efficiency, low-EMI Class-D audio amplifier. Its full-bridge topology supports a 2.7 W output into 4 Ω, while the stated 90% efficiency helps lower power consumption and board-space requirements. Integrated 250 mΩ MOSFETs at a 3.3 V supply reduce the need for external output power devices, and the available protection and pop-elimination features support practical speaker interfaces.
The MP1720DQ-216-LF-P is identified by distributors as a one-channel mono Class-D amplifier in a 10-QFN package measuring 3 x 3 mm. A QFN package places leadless terminals around the perimeter and can use an exposed thermal pad. Its small footprint is particularly useful where PCB area is constrained, although correct land-pattern design, exposed-pad soldering, thermal management, and input/output filtering remain essential.
Typical uses include compact speaker drivers in portable consumer equipment, personal audio products, mobile accessories, embedded control systems, and small industrial or automotive accessories where a 2.7 W mono output is sufficient. The BTL full-bridge output allows the amplifier to drive a speaker without a conventional output coupling capacitor when configured according to the manufacturer recommendations. The exact input filter, gain-setting method, output-filter requirements, and maximum supply voltage must be confirmed from the manufacturer datasheet before layout.
For implementation, use the manufacturer-recommended input and output filtering network, place the amplifier close to the speaker connection, and provide adequate exposed-pad copper for thermal dissipation. EMI performance depends on correct grounding, short output routing, controlled input impedance, and proper filter placement. Verify speaker impedance and power limits during prototype testing because an incorrect load or filter implementation can increase distortion, heat, or radiated emissions.
This product page consolidates verified manufacturer and distributor information for the MP1720DQ-216-LF-P, adds practical engineering guidance, and explicitly separates confirmed facts from parameters that still require datasheet confirmation. It also documents the absence of a verified, pin-compatible substitute rather than presenting unverified cross-brand parts as drop-in replacements.
直接替换替代料： MP1720DQ-216-LF-P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料MP1720DQ-216-LF-P 最大额定值与电气特性
| Amplifier Type | Mono Class-D audio amplifier |
| Output Power | 2.7 W into 4 Ω |
| 输出配置 | Full-bridge (BTL) |
| 效率 | 90% |
| Internal Power MOSFET Resistance | 250 mΩ at VIN = 3.3 V |
| Number of Channels | 1 channel |
| 封装 | 10-QFN (3 x 3 mm) |
| 安装类型 | Surface mount |
| Startup and Shutdown Pop Elimination | Supported |
| Short-Circuit Protection | Supported |
| Electromagnetic Interference | Low-EMI design |
MP1720DQ-216-LF-P 10-qfn (3 x 3 mm) 引脚配置指南
MP1720DQ-216-LF-P（10-qfn (3 x 3 mm) 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： MP1720DQ-216-LF-P.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MP1720DQ-216-LF-P 适用于 6 应用s: Portable Speaker Driver, Personal Audio Accessory, Embedded Control-System Annunciator, Mobile Accessory Speaker, Industrial Status-Alert Device, Compact IoT Notification Module.
Portable Speaker Driver
The MP1720DQ-216-LF-P fits compact single-speaker products because it combines a 2.7 W output capability at 4 Ω with approximately 90% efficiency in a 3 x 3 mm QFN package. It can sit beside a portable audio source and drive the speaker through the manufacturer-recommended filter network. The low-EMI design is useful where radiated emissions must be controlled. Designers should verify the complete supply range and confirm the required input and output filtering before layout. Compared with a discrete Class-AB implementation, the integrated MOSFET output stage can reduce board area, although thermal performance still depends on continuous output level and exposed-pad copper.
推荐
Personal Audio Accessory
A personal audio accessory can use the MP1720DQ-216-LF-P to produce 2.7 W into a 4 Ω miniature speaker while maintaining a compact board footprint. The approximately 90% efficiency is valuable when battery and thermal budgets are constrained, and the full-bridge output simplifies loudspeaker drive when the circuit is implemented according to the manufacturer guidance. Startup and shutdown pop elimination can help limit audible transients during mode changes. The design must still validate the power-up behavior, speaker impedance, filter response, and maximum thermal condition in the finished enclosure.
推荐
Embedded Control-System Annunciator
The MP1720DQ-216-LF-P is suitable for an embedded controller that must provide a local audible alert through a small 4 Ω speaker. Its 2.7 W capability is adequate for short status tones or moderate alert levels, while the 3 x 3 mm QFN package leaves PCB area for the processor and supporting circuitry. The approximately 90% efficiency reduces supply stress relative to a linear output stage. For industrial use, the engineer must verify operating-temperature limits, EMI behavior, and audio artifacts in the assembled system before release.
推荐
Mobile Accessory Speaker
For a mobile accessory, the MP1720DQ-216-LF-P offers a direct path from a low-voltage audio source to a 4 Ω speaker. Its 2.7 W output, integrated 250 mΩ power MOSFETs at VIN = 3.3 V, and small 10-QFN footprint support compact, efficient designs. Low-EMI operation is particularly relevant when the amplifier is placed beside wireless, high-speed, or switching circuitry. Engineers should keep the speaker loop short, implement the recommended filtering, and perform radiated-emissions testing because system-level EMI depends on the complete layout and enclosure.
推荐
Industrial Status-Alert Device
The MP1720DQ-216-LF-P can drive a compact 4 Ω status speaker in an industrial alert device, providing enough output for clear local notifications without a large linear amplifier. Its 90% efficiency supports a compact power budget, and the full-bridge topology can simplify loudspeaker connection when used with the recommended network. Startup and shutdown pop elimination may improve perceived quality during equipment resets. Industrial qualification cannot be assumed from the family description; temperature range, EMC performance, and long-term reliability should be checked against the manufacturer documentation and system requirements.
推荐
Compact IoT Notification Module
An IoT notification module can employ the MP1720DQ-216-LF-P when a small local speaker is preferred over a buzzer or when voice prompts require greater output. The 2.7 W capability suits a 4 Ω miniature speaker, while the low-EMI architecture is helpful in a wireless product containing switching converters and digital radios. The 3 x 3 mm package enables placement close to the speaker connector, but the exposed thermal pad and output routing still need careful treatment. Before production, confirm the amplifier's operating limits, EMI behavior, and acoustic performance with the final speaker and enclosure.
推荐
工程参考数据： MP1720DQ-216-LF-P ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Package | 10-QFN (3 x 3 mm) |
| Brand | Monolithic Power Systems |
| Amplifier Type | Mono Class-D audio amplifier |
| Output Power | 2.7 W into 4 Ω |
| Efficiency | 90% |
| Output Configuration | Full-bridge (BTL) |
| Internal MOSFET Resistance | 250 mΩ at VIN = 3.3 V |
| EMI Characteristics | Low-EMI design |
| Number of Channels | 1 channel |
| Surface-Mount Package | 10-QFN with exposed pad |
关键差异点
- Compact integrated mono Class-D output （对比 Generic 2.7 W Class-D amplifier)
- Integrated low-EMI output stage （对比 Discrete Class-AB speaker driver)
- Production-friendly transient control （对比 Basic Class-D amplifier without verified pop control)
设计说明
Place the input filter, output filter, and speaker connections according to the manufacturer application circuit. Keep the BTL speaker route short and away from sensitive analog inputs because each output switches between voltage states. Connect the exposed pad to the recommended ground plane and use uninterrupted ground copper beneath the device. Confirm the land pattern against the official package drawing rather than relying only on the generic 10-QFN name.
Low-EMI is an inherent design feature, but system emissions still depend on implementation. Use the manufacturer-recommended filter values, minimize the distance between the output bridge and speaker connector, provide a low-impedance ground return, and avoid routing amplifier outputs beneath sensitive traces. Validate radiated and conducted emissions with the final cable, speaker, enclosure, and power supply because changes outside the IC can dominate the result.
Although the MP1720DQ-216-LF-P is efficient, verify junction temperature at the maximum continuous output level and highest ambient temperature. Provide as much exposed-pad copper as the package and board layout permit, follow the manufacturer's solder-assembly process, and keep thermal vias unobstructed. If 2.7 W is maintained continuously into the rated load, measure board temperature rather than assuming the small QFN package dissipates negligible heat.
Do not treat a generic Class-D amplifier with the same wattage as a drop-in substitute. The MP1720 uses a full-bridge output and requires the appropriate speaker and filter network; connecting it as a conventional single-ended amplifier will not produce the intended output. Confirm supply limits, shutdown behavior, gain configuration, output filtering, and protection thresholds from the full manufacturer datasheet before schematic release.
合规信息
The supplied verified data does not state RoHS, REACH, halogen-free, lead-free, conflict-minerals, or automotive qualification status. AEC-Q100 is not applicable to the standard MP1720DQ-216-LF-P ordering designation because no automotive-qualified variant was identified.
