Linear Technology LT3481
the LT3481 can further enhance low output current efficiency by drawing bias current from the output when VOUT is above 3V. The LT3481 is available in 10-Pin MSOP and 3mm x 3mm DFN packages with exposed pads for low thermal resistance.| Part No. | LT3481 |
|---|---|
| Datasheet | LT3481 Download |
| Manufacturer |  Linear Technology |
| Description | 2.2.8MHz Step-Down Switching Regulator |
| Buy | Stock & Price |
FEATURES
● Wide Input Range: 3.6V to 34V Operating, 36V Maximum● 2A Maximum Output Current
● Low Ripple Burst Mode® Operation 50μA IQ at 12VIN to 3.3VOUT Output Ripple < 15mV
● Adjustable Switching Frequency: 300kHz to 2.8MHz
● Low Shutdown Current: IQ < 1μA
● Integrated Boost Diode
● Power Good Flag
● Saturating Switch Design: 0.18Ω On-Resistance
● 1.265V Feedback Reference Voltage
● Output Voltage: 1.265V to 20V
● Soft-Start Capability
● Synchronizable Between 275kHz to 475kHz
● Small 10-Pin Thermally Enhanced MSOP and (3mm x 3mm) DFN Packages
APPLICATIONS
● Automotive Battery Regulation● Power for Portable Products
● Distributed Supply Regulation
● Industrial Supplies
● Wall Transformer Regulation
DESCRIPTION
The LT®3481 is an adjustable frequency (300kHz to 2.8MHz) monolithic buck switching regulator that accepts input voltages up to 34V (36V maximum). A high efficiency 0.18Ω switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry.
