Click here to ask about the production status of specific part numbers. MAX17783C 6V to 60V, 2.5A, High Efficiency, Step-Down DC-DC Converter 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 Internal Compensation Components power supply solutions. The MAX17783C is a high-ef- All-Ceramic Capacitors, Compact Layout ficiency, high-voltage, Himalaya step-down DC-DC con- Reduces Number of DC-DC Regulators to Stock verter with an integrated high-side MOSFET operating Wide 6V to 60V Input-Voltage Range over a wide input-voltage range of 6V to 60V. It can deliver Adjustable Output Range from 0.9V up to 90% of up to 2.5A current, and generate output voltages from V IN 0.9V up to 90% of V . The device features internal com- IN Delivers up to 2.5A Over the Temperature Range pensation. 400kHz to 2.2MHz Adjustable Frequency with The MAX17783C device uses peak current-mode control External Clock Synchronization architecture. The device operates in Low I mode at light q Reduces Power Dissipation loads to enable high efficiency. The MAX17783C offers a 90.4% Peak Efficiency low minimum on-time that allows high switching frequen- 3.01A Shutdown Current cies and smaller solution sizes. Low I Mode for Enhanced Light-Load Efficiency q The feedback-voltage regulation accuracy is 1.6% over Operates Reliably in Adverse Industrial Environments -40C to +125C. The MAX17783C is available in a com- Hiccup-Mode Overload Protection pact 10-pin (3mm x 3mm) TDFN package. Simulation Adjustable and Monotonic Startup with Prebiased models are available. Output Voltage Built-In Output-Voltage Monitoring with RESET Applications Programmable EN/UVLO Threshold Industrial and Commercial Power Distribution Complies with CISPR32(EN55032) Class B General Purpose Point-of-Load Conducted and Radiated Emissions Distributed Supply Regulation Overtemperature Protection Base-Station Power Supplies Wide -40C to +125C Ambient Operating Wall Transformer Regulation Temperature Range/ -40C to +150C Junction High-Voltage, Single-Board Systems Temperature Range Set Top Boxes Audio Power Supplies Ordering Information appears at end of data sheet. LED Displays Simplified Application Circuit VIN IN EN/UVLO V CC MAX17783C RESET BST RT/SYNC SS V OUT LX GND EP FB FB FB 19-100843 Rev 1 2/21MAX17783C 6V to 60V, 2.5A, High Efficiency, Step-Down DC-DC Converter Absolute Maximum Ratings IN to GND............................................................... -0.3V to +65V Continuous Power Dissipation (Multilayer Board, 10-Pin TDFN) EN/UVLO to GND...........................................-0.3V to V + 0.3V (T = +70C, derate 24.4mW/C above +70C) ..........1951.2mW IN A V , SS, RT/SYNC, FB, RESET to GND ............. -0.3V to +6.5V Output Short-Circuit Duration......................................Continuous CC LX to GND ......................................................-0.3V to V + 0.3V Operating Temperature Range (Note 1) ...............-40C to 125C IN BST to GND............................................................ -0.3V to +70V Junction Temperature.......................................................+150C BST to LX ................................................................. -0.3V to +6V Storage Temperature Range ..............................-65C to +160C BST to V ............................................................. -0.3V to +65V Lead Temperature (soldering, 10s)...................................+300C CC LX Total RMS Current ........................................................... 2.7A Soldering Temperature (reflow) ........................................+260C Note 1: Junction temperature greater than +125C degrades operating lifetimes. Note 2: Package thermal resistance was obtained using the MAX17783C evaluation kit with no airflow. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and 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 10-PIN TDFN-CU Package Code T1033+1C Outline Number 21-0137 Land Pattern Number 90-0003 THERMAL RESISTANCE, FOUR-LAYER BOARD (Note 2) Junction-to-Ambient ( ) 34C/W JA Junction-to-Case Thermal Resistance ( ) 9C/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. Electrical Characteristics (V = 24V, V = 24V, C = 2.2F, V = 0V, V = 1V, RT/SYNC = LX = SS = RESET = Open, V to V = 5V, T = IN EN/UVLO VCC GND FB BST LX A -40C to +125C, unless otherwise noted. Typical values are at T = +25C. All voltages are referenced to GND.) (Note 3) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT SUPPLY (IN) Input-Voltage Range V 6 60 V IN Input-Shutdown Current I V = 0V (shutdown mode) 3.01 6 A IN SH EN/UVLO I Not switching 205 350 A Low Iq Input-Quiescent Current I Normal Switching mode, f = 500kHz 1.6 3 mA CCM SW ENABLE/UVLO (EN/UVLO) V V rising 1.192 1.218 1.238 ENR EN/UVLO EN/UVLO Threshold V V V falling 1.068 1.088 1.111 ENF EN/UVLO EN/UVLO Input- I V = 1.25V, T = +25C -100 0 +100 nA ENLKG EN/UVLO A Leakage Current V (LDO) CC 1mA I 15mA 4.75 5 5.25 V Output-Voltage VCC CC V V CC Range 6V V 60V, I = 1mA 4.75 5 5.25 IN VCC www.maximintegrated.com Maxim Integrated 2