Microchip Technology MIC2182
The MIC2182 is a synchronous buck (step-down) switching regulator controller. The PWM and skip-mode control scheme allows efficiency to exceed 95% over a wide range of load current, making it ideal for battery powered applications, as well as high current distributed power supplies. The MIC2182 operates from a 4.5V to 32V input and can operate with a maximum duty cycle of 86% for use in low- dropout conditions.| Part No. | MIC2182 |
|---|---|
| Datasheet | MIC2182 Download |
| Manufacturer |  Microchip Technology |
| Description | High-Efficiency Synchronous Buck Controller |
| Buy | Stock & Price |
FEATURES
● 4.5V to 32V Input Voltage Range● 1.25V to 6V Output Voltage Range
● 95% Efficiency
● 300 kHz Oscillator Frequency
● Current Sense Blanking
● 5Ω Impedance MOSFET Drivers
● Drives N-channel MOSFETs
● 600 µA Typical Quiescent Current (Skip-Mode)
● Logic Controlled Micropower Shutdown (IQ < 0.1 µA)
● Current-Mode Control
● Cycle-by-Cycle Current Limiting
● Built-In Undervoltage Protection
● Adjustable Undervoltage Lockout
● Easily Synchronizable
● Precision 1.245V Reference Output
● 0.6% Total Regulation
● 16-Lead SOIC and SSOP Packages
● Frequency Foldback Overcurrent Protection
● Sustained Short-Circuit Protection at Any Input Voltage
● 20A Output Current Capability
APPLICATIONS
● DC Power Distribution Systems● Notebook and Subnotebook Computers
● PDAs and Mobile Communicators
● Wireless Modems
● Battery-Operated Equipment
GENERAL DESCRIPTION
An all N-channel synchronous architecture and powerful output drivers allow up to a 20A output current capability. It also features a shutdown mode that reduces quiescent current to 0.1 µA.
