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MAX15020ATP+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX15020ATP+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 19 page General Description The MAX15020 high-voltage step-down DC-DC con- verter operates over an input voltage range of 7.5V to 40V. The device integrates a 0.2Ω high-side switch and is capable of delivering 2A load current with excellent load and line regulation. The output is dynamically adjustable from 0.5V to 36V through the use of an exter- nal reference input (REFIN). The MAX15020 consumes only 6µA in shutdown mode. The device utilizes feed-forward voltage-mode architec- ture for good noise immunity in the high-voltage switch- ing environment and offers external compensation for maximum flexibility. The switching frequency is selec- table to 300kHz or 500kHz and can be synchronized to an external clock signal of 100kHz to 500kHz by using the SYNC input. The IC features a maximum duty cycle of 95% (typ) at 300kHz. The device includes configurable undervoltage lockout (UVLO) and soft-start. Protection features include cycle-by-cycle current limit, hiccup-mode for output short-circuit protection, and thermal shutdown. The MAX15020 is available in a 20-pin TQFN 5mm x 5mm package and is rated for operation over the -40°C to +125°C temperature range. Applications Printer Head Driver Power Supply Automotive Power Supply Industrial Power Supply Step-Down Power Supply Features o Wide 7.5V to 40V Input Voltage Range o 2A Output Current, Up to 96% Efficiency o Dynamic Programmable Output Voltage (0.5V to 36V) o Maximum Duty Cycle of 95% (typ) at 300kHz o 100kHz to 500kHz Synchronizable SYNC Frequency Range o Configurable UVLO and Soft-Start o Low-Noise, Voltage-Mode Step-Down Converter o Programmable Output-Voltage Slew Rate o Lossless Constant Current Limit with Fixed Timeout to Hiccup Mode o Extremely Low-Power Consumption (< 6µA typ) in Shutdown Mode o 20-Pin (5mm x 5mm) Thin QFN Package 2A, 40V Step-Down DC-DC Converter with Dynamic Output-Voltage Programming ________________________________________________________________ Maxim Integrated Products 1 Ordering Information MAX15020 ON/OFF IN DVREG VOUT (0.5V TO 36V) LX REFOUT REFIN EP SS PWM INPUT VIN (7.5V TO 40V) BST FB COMP SYNC GND FSEL PGND REG Typical Operating Circuit 19-0811; Rev 0; 4/07 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. + Denotes a lead-free package. * EP = Exposed pad. PART TEMP RANGE PIN- PACKAGE PKG CODE MAX15020ATP+ -40°C to +125°C 20 TQFN-EP* (5mm x 5mm) T2055-5 Pin Configuration appears at end of data sheet. EVALUATION KIT AVAILABLE |
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