Microchip Technology MIC4684
The MIC4684 is a high-efficiency 200 kHz step-down (buck) switching regulator. The MIC4684 achieves up to 2A of continuous current in an 8-lead SOIC (small outline) package at 60°C ambient temperature. The MIC4684, packaged in an SOIC-8, can replace larger TO-220 and TO-263 packages in many applications.| Part No. | MIC4684 |
|---|---|
| Datasheet | MIC4684 Download |
| Manufacturer |  Microchip Technology |
| Description | 2A High Efficiency Buck Regulator |
| Buy | Stock & Price |
FEATURES
● Up to 2A Continuous Output Current● Up to 85% Efficiency
● Fixed 200 kHz PWM Operation
● Wide 4V to 30V Input Voltage Range
● Output Voltage Adjustable to 1.235V
● Internally Compensated with Fast Transient Response
● Overcurrent Protection
● Frequency Foldback Short-Circuit Protection
● Thermal Shutdown
APPLICATIONS
● High-Efficiency Step-Down Regulator● On-Card Switching Regulator
GENERAL DESCRIPTION
As a result of high efficiency, no external heat sink is required. The MIC4684 allows for a high degree of safety. It has a wide input voltage range of 4V to 30V (34V transient), allowing it to be used in applications where input voltage transients may be present. Built-in safety features include overcurrent protection, frequency foldback short-circuit protection, and thermal shutdown. The MIC4684 folds the switching frequency back during a hard short-circuit condition to reduce the energy per cycle and protect the device. The MIC4684 is available in an 8-lead SOIC package with a junction temperature range of –40°C to +125°C.
