Evaluation Kit Design Tools Support Available Resources and Models Click here to ask an associate for production status of specific part numbers. 4.5V to 60V, 4A, High-Efficiency, MAX17576 Synchronous Step-Down DC-DC Converter with Internal Compensation General Description Benefits and Features The Himalaya series of voltage regulator ICs, power mod- Reduces External Components and Total Cost ules, and chargers enable cooler, smaller, and simpler power No Schottky-Synchronous Operation supply solutions. The MAX17576, high-efficiency, high- Internal Compensation for Any Output Voltage All-Ceramic Capacitors, Compact Layout voltage, Himalaya synchronous step-down DC-DC converter with integrated MOSFETs operates over an input voltage Reduces Number of DC-DC Regulators to Stock range of 4.5V to 60V. The converter can deliver up to 4A cur- Wide 4.5V to 60V Input rent. Output voltage is programmable from 0.9V up to 90% Adjustable Output Voltage Range from 0.9V up to of V . The feedback voltage regulation accuracy over -40C IN 90% of V IN to +125C is 0.9%. Built-in compensation across the output- 100kHz to 2.2MHz Adjustable Switching Frequency voltage range eliminates the need for external compensation with External Clock Synchronization components. Reduces Power Dissipation The MAX17576 features a peak-current-mode control Peak Efficiency of 94.8% architecture. The device can operate either in constant- PFM and DCM Modes Enable Enhanced frequency based pulse-width modulation (PWM) or pulse- Light-Load Efficiency frequency modulation (PFM), or discontinuous-conduction Auxiliary Bootstrap Supply (EXTVCC) for Improved mode (DCM) control schemes. A programmable soft-start Efficiency feature allows users to reduce input inrush current. The 2.8A Shutdown Current device also incorporates an enable/input undervoltage Operates Reliably in Adverse Industrial Environments lockout pin (EN/UVLO) that allows the user to turn on the Hiccup Mode Overload Protection and Auto-Retry part at the desired input voltage level. The MAX17576 Startup offers a low minimum on time that allows high switching Adjustable Soft-Start frequencies and a small solution size. Built-In Output-Voltage Monitoring with RESET The MAX17576 is available in a 24-pin (4mm x 5mm) Programmable EN/UVLO Threshold TQFN-EP package. Simulation models are available. Monotonic Startup with Prebiased Output Voltage Overtemperature Protection Applications Wide -40C to +125C Ambient Operating Tempera- Industrial Control Power Supplies ture Range/-40C to +150C Junction Temperature General Purpose Point-of-Load Range Distributed Supply Regulation Ordering Information appears at end of data sheet. Base Station Power Supplies Wall Transformer Regulation High-Voltage, Single-Board Systems Simplified Application Circuit EN/UVLO IN BST MODE/SYNC V RESET LX OUT MAX17576 VOUT CF RT FB SS FB V CC EXTVCC PGND SGND VIN 19-100399 Rev 2 10/21 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 2021 Analog Devices, Inc. All rights reserved.MAX17576 4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation Absolute Maximum Ratings IN to PGND ...........................................................-0.3V to +65V PGND to SGND.................................................... -0.3V to +0.3V EN/UVLO to SGND ...............................................-0.3V to +65V LX Total RMS Current ..................................................... 5.6A LX to PGND..................................................-0.3V to V + 0.3V Output Short-Circuit Duration ................................. Continuous IN EXTVCC to SGND ................................................-0.3V to +26V Continuous Power Dissipation (multilayer Board) (T = +70C, A BST to PGND ........................................................-0.3V to +70V derate 41.7mW/C above +70C.) .............................3333mW BST to LX .............................................................-0.3V to +6.5V Operating Temperature Range (Note 1)........... -40C to +125C BST to V ...........................................................-0.3V to +65V Junction Temperature ................................................... +150C CC RESET, SS, MODE/SYNC, Storage Temperature Range ........................... -65C to +150C V , RT, CF to SGND ......................................-0.3V to +6.5V Lead Temperature (soldering, 10s) ............................... +300C CC FB to SGND .........................................................-0.3V to +1.5V Soldering Temperature (reflow) .................................... +260C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Information PACKAGE TYPE: 24L TQFN-EP Package Code T2445+2C Outline Number 21-0201 Land Pattern Number 90-0083 THERMAL RESISTANCE, FOUR-LAYER BOARD (Note 2) Junction to Ambient ( ) 24C/W JA Junction to Case ( ) 1.8C/W JC For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a +, , or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Note 1: Junction temperature greater than +125C degrades operating lifetimes. Note 2: Package thermal resistances were obtained using the MAX17576 evaluation kit with no airflow. Analog Devices 2 www.analog.com