LTM8021 Datasheet | Linear Technology

LTM8021 36VIN, 500m A Step-Down DC/DC µModule Features n plete Switch Mode Power Supply n Wide Input Voltage Range: 3V to 36V n 500m A Output Current n 0.8V to 5V Output Voltage n Fixed 1.1MHz Switching Frequency n Current Mode Control n (e4) Ro HS pliant Package with Gold Pad Finish n Programmable Soft-Start n Tiny, Low Profile (11.25mm × 6.25mm × 2.82mm) Surface Mount LGA Package Applications n Automotive Battery Regulation n Power for Portable Products n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation Description The LTM®8021 is a 36VIN 500m A, step-down DC/DC µModule®. Included in the package are the switching controller, power switches, inductor, and all support ponents. Operating over an input voltage range of 3V to 36V, the LTM8021 supports an output voltage range of 0.8V to 5V, set by a single resistor. Only an output and bulk input capacitor are needed to finish the design. The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. A built-in soft-start timer is adjustable with just a resistor and capacitor. The LTM8021 is packaged in a thermally enhanced, pact (11.25mm × 6.25mm) and low profile (2.82mm) overmolded land grid array (LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8021 is Ro HS pliant. L, LT, LTC, LTM, µModule, Poly Phase, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. POWER LOSS (m W) Typical Application 7VIN to 36VIN, 5V/500m A µModule Regulator VIN- 7V TO 36V LTM8021 IN OUT RUN/SS BIAS GND ADJ 1µF 19.1k VOUT 5V AT 500m A 2.2µF 8021 TA01a - RUNNING VOLTAGE RANGE. PLEASE REFER TO THE APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS. EFFICIENCY (%) Efficiency and Power Loss 90 80 70 60 50 40 30 EFFICIENCY 350...