MPM3804

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0.6A,5.5V,带集成电感和输出放电功能的同步降压调节器



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Product Description

MPM3804 是一款单片降压型开关转换器,内置内部功率 MOSFETs 和电感。MPM3804 能在 2.3V 至 5.5V 输入电压范围内实现 0.6A 的连续输出电流,具有极好的负载和线性调节功能。输出电压可调节低至 0.6V。仅输入电容器、输出电容器和反馈(FB)电阻器需要完成设计。恒定导通时间(COT)控制方案提供了快速瞬态响应、高轻载效率和简单的环路稳定性。全方位保护包括逐周期限流保护和过温保护。 MPM3804 适用范围广泛,是高性能 DSP、无线电源、便携和移动设备及其他低功率系统应用的理想之选。MPM3804 采用超小型 QFN-10 (2mmx2mm) 封装,最大限度地减少了现有标准外部元器件的使用。

Product Features

  • 峰值效率高达 91%
  • 低 IQ:11µA
  • 2.3V 至 5.5V 宽工作输入电压范围
  • 输出电压低至 0.6V
  • 压差 100% 占空比
  • 0.6A 输出电流
  • 120mO 和 80mO 内部功率 MOSFETs
  • 频率为 2.4MHz
  • EN 和 PG 供电时序
  • 逐周期过流保护(OCP)
  • 0.5ms 内部软启动时间
  • 输出放电功能
  • 带打嗝保护模式的短路保护(SCP)
  • 过温保护
  • 采用低 ESR 输出陶瓷电容器可稳定工作
  • 采用超小型 2mm x 2mm x 0.9mm QFN-10 封装

Parametrics

  • fsw (max) (kHz)2400
  • Vin (min) (V)2.3
  • Vin (max) (V)5.5
  • Iout (max) (A)0.6
  • Isw Limit (typ) (A)1.3
  • Max Duty Cycle (%)1
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.011
  • Regulated Outputs1
  • Vout (max) (V)5.5
  • Vout (min) (V)0.6
  • EN ControlYes
  • GradeIndustrial
  • PackageQFN-10 (2x2x0.9)
  • Special FeaturesEMI Tested, Fixed Output Voltage Options, Light-Load Efficiency
  • SS内部
  • PGNo

Evaluation Kit

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Kit details

The MPM3804 is a monolithic step-down switch mode converter with built-in internal power MOSFETs and inductor. The DC-DC module has a small surface mount 2mm x 2mm QFN package. It achieves 0.6A continuous output current from a 2.3V to 5.5V input voltage with excellent load and line regulation. The MPM3804 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile Devices, and other low-power systems. The output voltage can be regulated as low as 0.6V. Only input, output capacitors and FB resistors are needed to complete the design.

The Constant-On-time (COT) control scheme provides fast transient response high light­load efficiency and easy loop stabilization.

Fault condition protection includes cycle­by­cycle current limit and thermal shutdown.

The MPM3804 requires a minimum number of readily available standard external components and is available in an ultra-small QFN10 (2x2mm) package.

US$ 25.00 + tax


Reference Materials