General Description

The MIC5200 is an efficient linear voltage regulator with very low dropout voltage (typically 17 mV at light loads and 200 mV at 100 mA), and very low ground current (1 mA at 100 mA output), offering better than 1 initial accuracy with a logic-compatible ON/OFF switching input. Designed especially for hand-held battery-powered devices, the MIC5200 is switched by a CMOS- or TTL-compatible logic signal. The ENABLE control may be tied directly to VIN if unneeded. When disabled, power consumption drops nearly to zero. The ground current of the MIC5200 increases only slightly in dropout, further prolonging battery life. Key MIC5200 features include protection against reversed battery, current limiting, and overtemperature shutdown.

The MIC5200 is available in several fixed voltages and accuracy configurations. Other options are available; contact Microchip for details.

Features

• High Output Voltage Accuracy

• Variety of Output Voltages

• Guaranteed 100 mA Output

• Low Quiescent Current

• Low Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Current and Thermal Limiting

• Zero OFF Mode Current

• Logic-Controlled Electronic Shutdown

• Available in 8-Lead SOIC, MM8 8-Lead MSOP, and SOT-223 Packages

Applications

• Cellular Telephones

• Laptop, Notebook, and Palmtop Computers

• Battery-Powered Equipment

• PCMCIA VCC and VPP Regulation/Switching

• Barcode Scanners

• SMPS Post-Regulator/DC-to-DC Modules

• High Efficiency Linear Power Supplies

MIC5200-3.3YMM属于集成电路（IC） > 线性 + 开关稳压器。微芯科技股份有限公司制造生产的MIC5200-3.3YMM稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。