HomedatasheetMIC4680YM TR

MIC4680YM TR Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators


The MIC4680YM TR SuperSwitcher™ is an easy-to-use fixed or adjustable output voltage step-down (buck) switch-mode voltage regulator. The 200kHz MIC4680 achieves up to 1.3A of continuous output current over a wide input range in a 8-pin SOIC. The MIC4680YM TR is available in 3.3V and 5V fixed output versions or adjustable output down to 1.25V. The MIC4680YM TR has an input voltage range of 4V to 34V, with excellent line, load, and transient response. The regulator performs cycle-by-cycle current limiting and thermal shutdown for protection under fault conditions. In shutdown mode, the regulator draws less than 2µA of standby current. The MIC4680 SuperSwitcher™ regulator requires a minimum number of external components and can operate using a standard series of inductors and capacitors. Frequency compensation is provided internally for fast transient response and ease of use. The MIC4680YM TR is available in the 8-pin SOIC with a –40°C to +125°C junction temperature range. MIC4680YM TR Features • SOIC-8 package with up to 1.3A output current • All surface mount solution • Only 4 external components required • Fixed 200kHz operation • 3.3V, 5V, and adjustable output versions • Internally compensated with fast transient response • Wide 4V to 34V operating input voltage range • Less than 2µA typical shutdown-mode current • Up to 90% efficiency • Thermal shutdown • Overcurrent protection MIC4680YM TR Applications • Simple 1A high-efficiency step-down (buck) regulator • Replacement of TO-220 and TO-263 designs • Efficient pre-regulator (5V to 2.5V, 12V to 3.3V, etc.) • On-card switching regulators • Positive-to-negative converter (inverting buck-boost) • Simple battery charger • Negative boost converter • Higher output current regulator using external FET


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