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SC185BEVB

SC185BEVB

  • 厂商:

    SEMTECH

  • 封装:

  • 描述:

    SC185BEVB - 4A Synchronous Step-Down Regulator - Semtech Corporation

  • 详情介绍
  • 数据手册
  • 价格&库存
SC185BEVB 数据手册
SC185 POWER MANAGEMENT Features                     4A Synchronous Step-Down Regulator Description The SC185 is a 4A synchronous step-down regulator designed to operate with an input voltage range of 2.9V to 5.5V. The device requires only three external filter components for a complete a step down regulator solution. The output voltage is factory predetermined with an available range of 1.0V to 3.3V. The SC185 is optimized for maximum efficiency over a wide range of load currents. During full load operation, the SC185 operates in PWM mode with fixed 1.5MHz oscillator frequency, allowing the use of small surface mount external components. As the load decreases, the regulator has the option to transition into Power Save mode maintaining high efficiency or stay in forced PWM mode operation. The SC185 offers output short circuit and thermal protection to safe guard the device under extreme operating conditions. The enable pin provides on/off control of the regulator. When connected to logic low, the device enters shutdown and consumes less than 1uA of current. Other protection features include programmable soft start with Power Good indicator, over voltage protection and under voltage lockout. The SC185 is available in a thermally-enhanced, 3mm x 3mm x 0.6mm MLPQ-UT16 package and has a rated temperature range of -40 to +85°C. VIN Range: 2.9 – 5.5V VOUT Options: 1.0V to 3.3V Up to 4A Output Current Ultra-Small Footprint,
SC185BEVB
1. 物料型号: - 型号为SC185,是一款4A同步降压稳压器。

2. 器件简介: - SC185是一款设计用于输入电压范围2.9V至5.5V的同步降压稳压器。该器件仅需要三个外部滤波组件即可构成完整的降压稳压解决方案。输出电压在工厂预设,可在1.0V至3.3V范围内选择。该器件在全负载运行时效率高达95%,并且在轻负载时可进入省电模式以保持高效率。

3. 引脚分配: - 1,2脚:PVIN,输入供电电压。 - 3脚:AGND,内部电路的地连接。 - 4脚:AVIN,内部电路的电源供电。 - 5脚:MODE,模式选择引脚。 - 6脚:EN,使能引脚。 - 7脚:PGOOD,电源良好指示。 - 8脚:NC,无连接。 - 9脚:SS,软启动引脚。 - 10脚:VOUT,输出电压感测引脚。 - 11,12,13脚:PGND,转换电源阶段的地连接。 - 14,15,16脚:LX,开关节点。 - T脚:热垫,用于散热。

4. 参数特性: - 输入电压范围:2.9V至5.5V。 - 输出电压选项:1.0V至3.3V。 - 输出电流:高达4A。 - 开关频率:1.5MHz。 - 封装:3mm x 3mm x 0.6mm MLPQ-UT16。 - 工作温度范围:-40至+85°C。

5. 功能详解: - SC185在全负载时以PWM模式运行,轻负载时可进入省电模式。提供短路和热保护,EN引脚提供开关控制。具有可编程软启动和Power Good指示,过压保护和欠压锁定保护。

6. 应用信息: - 适用于桌面计算、机顶盒、液晶电视、网络卡、打印机等应用。
SC185BEVB 价格&库存

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