LTM8023 2A, 36V DC/DC Step-Down µModule Regulator FEATURESDESCRIPTION n Complete Step-Down Switch Mode Power Supply The LTM®8023 is a complete 2A, DC/DC step-down power n Wide Input Voltage Range: 3.6V to 36V supply. Included in the package are the switching controller, n 2A Output Current power switches, inductor, and all support components. n 0.8V to 10V Output Voltage Operating over an input voltage range of 3.6V to 36V, the n Selectable Switching Frequency: 200kHz to 2.4MHz LTM8023 supports an output voltage range of 0.8V to 10V, n Current Mode Control and a switching frequency range of 200kHz to 2.4MHz, n Programmable Soft-Start each set by a single resistor. Only the bulk input and output n SnPb (BGA) or RoHS Compliant (LGA and BGA) filter capacitors are needed to finish the design. Finish The low profile package enables utilization of unused n Tiny, Low Profile, Surface Mount LGA (9mm × space on the bottom of PC boards for high density point 11.25mm × 2.82mm) and BGA (9mm × 11.25mm × of load regulation. 3.42mm) Packages The LTM8023 is packaged in a thermally enhanced, com- APPLICATIONS pact and low profile over-molded land grid array (LGA) and ball grid array (BGA) packages suitable for automated n Automotive Battery Regulation assembly by standard surface mount equipment. The n Power for Portable Products LTM8023 is available with SnPb (BGA) or RoHS compli- n Distributed Supply Regulation ant terminal finish. n Industrial Supplies L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and µModule are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their n Wall Transformer Regulation respective owners. TYPICAL APPLICATION5.5VIN to 36VIN, 3.3V/2A DC/DC µModule® ConverterEfficiency and Power Loss 90 1.8 VOUT VIN* VIN V 3.3V 85 1.6 OUT 5.5V TO 36V 2A 2.2µF AUX 22µF 80 1.4 RUN/SS POWER LOSS (W) BIAS 1.2 75 SHARE 1.0 70 LTM8023 0.8 PGOOD 65 EFFICIENCY (%) 0.6 60 ADJ 0.4 SELECTABLE 55 VIN = 12V 0.2 OPERATING RT GND SYNC VOUT = 3.3V FREQUENCY 8023 TA01 50 f = 650 kHz 0 49.9k 154k 0.01 0.1 1 10 LOAD CURRENT (A) 8023 TA01b *RUNNING VOLTAGE RANGE. PLEASE REFER TO APPLICATIONS INFORMATION FOR START-UP DETAILS 8023fj For more information www.linear.com/LTM8023 1
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