EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAXM17761 4.5V to 76V, 1A High-Efficiency DC-DC Step-Down Power Module with Integrated Inductor General Description Benefits and Features The Himalaya series of voltage regulator ICs and Power Reduces Design Complexity, Manufacturing Risks, Modules enable cooler, smaller, and simpler power supply and Time-to-Market solutions. The MAXM17761 is an easy-to-use power Synchronous Step-Down DC-DC Converter With module that combines a synchronous step down DC-DC Integrated FETs converter with integrated FETs ,a fully shielded inductor, Integrated Inductor Integrated Compensation Components and the compensation components into a low-profile, thermally-efficient, system-in-package (SiP). The device Saves Board Space in Space-Constrained Applications operates over a wide input voltage range of 4.5V to 76V Complete Integrated Step-Down Power Supply in a and delivers up to 1A continuous output current with Single Package excellent line and load regulation over an output voltage Small Profile 6.5mm x 10mm x 2.92mm SiP Package range of 0.8V to 5V. The device only requires five exter- Simplified PCB Design with Minimal External BOM nal components to complete the total power solution. Components The high level of integration significantly reduces design Offers Flexibility for Power-Design Optimization complexity, manufacturing risks, and offers a true plug- Wide Input Voltage Range from 4.5V to 76V and-play power supply solution, reducing time-to-market. Output-Voltage Adjustable Range from 0.8V to 5V The device offers resistor programmable switching fre- Adjustable Frequency with External Synchronization quency, RESET output voltage monitoring, adjustable (180kHz to 537kHz) input undervoltage lockout and programmable soft-start. Soft-Start Programmable The device also features robust overload protection and Optional Programmable EN/UVLO a thermal shutdown function. Operates Reliably in Adverse Industrial Environments The MAXM17761 is available in a low-profile, highly Integrated Thermal Fault Protection thermal-emissive, compact, 28-pin 6.5mm x 10mm x Robust Overcurrent Protection 2.92mm SiP package that reduces power dissipation in RESET Output Voltage Monitoring the package and enhances efficiency. The package is High Industrial -40C to +125C Ambient Operating easily soldered onto a printed circuit board and is suitable Temperature Range/-40C to +150C Junction for automated circuit board assembly. The device can Temperature Range operate over the full industrial temperature range from Complies with CISPR22(EN55022) Class B -40C to +125C. Conducted and Radiated Emissions Typical Application Circuit Applications Industrial Power Supplies 3.3V,1A V IN IN OUT Distributed Supply Regulation C1 2.2F R1 C2 FPGA and DSP Point-of-Load Regulator 69.8k 100F FB Base Station Point-of-Load Regulator EN/UVLO FB R RT/SYNC ILIM HVAC and Building Control R2 R3 105k MAXM17761 243k V SS CC SS C LX RESET EXTVCC SGND PGND Ordering Information appears at end of data sheet. 19-100085 Rev 2 2/19MAXM17761 4.5V to 76V, 1A High-Efficiency DC-DC Step-Down Power Module with Integrated Inductor Absolute Maximum Ratings (Note 1) IN to SGND ...........................................................-0.3V to +80V PGND to SGND ....................................................-0.3V to +0.3V LX to PGND.................................................. -0.3V to V + 0.3V Operating Temperature Range ......................... -40C to +125C IN OUT to PGND (V < 6.3V) .......................... -0.3V to V + 0.3V Junction Temperature ......................................................+150C IN IN OUT to PGND (V > 6.3V) ..................................-0.3V to +6.3V Storage Temperature Range ............................ -55C to +125C IN EN/UVLO, EXTVCC to SGND ..............................-0.3V to +26V Lead Temperature (soldering, 10s) .................................+250C FB, FB R, RESET, SS, SS C, V , Soldering Temperature (reflow) .......................................+250C CC RT, ILIM to SGND ................................................-0.3V to +6V 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 PACKAGE TYPE: 28PIN-SiP Package Code L286510 8 Outline Number 21-100181 Land Pattern Number 90-100059 THERMAL RESISTANCE, FOUR-LAYER BOARD (N ote 2) Junction-to-Ambient Thermal Resistance ( ) 22.5C/W JA 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 resistance is measured on evaluation board with natural convection. Electrical Characteristics (V = 24V, V = unconnected, R = 69.8 k (f = 537kHz). V , V = 0V, V , LX, SS, RESET, OUT = open. IN EN/UVLO RT SW PGND SGND CC T = -40C to 125C, unless otherwise noted. Typical values are at T = +25C. All voltages are referenced to SGND, unless otherwise A A noted.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT SUPPLY Input Voltage Range V 4.5 76 V IN Input Shut-down Current I V = 0V (shutdown mode) 2.5 5 10 A IN-SH EN/UVLO Input Quiescent Current I R = 243k 3 4 5 mA Q-PWM ILIM EN/UVLO V V rising 1.19 1.215 1.24 ENR EN/UVLO EN/UVLO Threshold V V falling 1.09 1.115 1.14 V ENF EN/UVLO V V falling, true shutdown 0.7 EN-TRUESD EN/UVLO Enable Pullup Current I V = 1.215V 2.2 2.5 2.8 A EN EN/UVLO Maxim Integrated 2 www.maximintegrated.com