EVALUATION KIT AVAILABLE MAX20710 Integrated, Step-Down Switching Regulator with PMBus General Description Benefits and Features The MAX20710 is a fully integrated, highly efficient switching High Power Density and Low Component Count 2 regulator with PMBus for applications operating from Overall Solution Size 509mm Including Inductor 4.5V to 16V and requiring up to 10A (max) load. This and Output Capacitors 90.5% Peak Efficiency with V = 12V and V single-chip regulator provides extremely compact, high- DDH OUT efficiency power-delivery solutions with high-precision = 1V Fast Transient Response: Supports Up to 300A/s output voltages and excellent transient response for networking, datacom, and telecom equipment. This Load-Step Transients Device is footprint compatible with MAX20730. Optimized Component Performance and Efficiency with Reduced Design-In Time The IC offers a broad range of programmable features through either the PMBus or a capacitor and resistor PMBus-Compliant Interface for Telemetry and Power Management connected to a dedicated programming pin. Using this Voltage, Current, and Temperature Reporting feature, the operation can be optimized for a specific through the Digital Bus application, reducing the component count and/or setting appropriate trade-offs between the regulators performance Increased Power-Supply Reliability with System and and system cost. Ease of programming enables using the IC Self-Protection Features same design for multiple applications. Differential Remote Sense with Open-Circuit Detection The IC includes protection and telemetry features. Positive Hiccup Overcurrent Protection and negative cycle-by-cycle overcurrent protection and Programmable Thermal Shutdown overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of Typical System Efficiency specification. A status pin provides an output signal to show that the output voltage is within range and the vs. Load Current (V = 12V) DDH system is regulating. 100 Applications 95 Communications Equipment 90 Networking Equipment 85 Servers and Storage Equipment Point-of-Load Voltage Regulators 80 P Chipsets V = 5V 75 VoOutU =T 5V Memory V DDQ V = 3.3V VouOUt =T 3.3V 70 V = 1.8V I/O Vout = 1.8V OUT V = 1.2V VouOUt =T 1.2V 65 V = 1V VoOutU =T 1V CURRENT INPUT OUTPUT DESCRIPTION V = 0.8V Vout = 0.8V OUT RATING* VOLTAGE VOLTAGE 60 V = 0.65V Vout = 0.65V OUT Electrical rating 10A 4.5V to 16V 0.6V to 5.5V 55 Thermal rating, 50 10A 12V 1V 0 2 4 6 8 10 T = 55C, 200LFM A I (A) OUT Thermal rating, 10A 12V 1V T = 85C, 0LFM A Order Information appears at end of data sheet. *For specific operating conditions, refer to the SOA curves in the Typical Operating Characteristics section and OCP settings in the Electrical Characteristics section. PMBus is a trademark of SMIF, Inc. 19-100256 Rev 1 8/19 EFFICIENCY (%)MAX20710 Integrated, Step-Down Switching Regulator with PMBus Absolute Maximum Ratings Input Pin Voltage (V ) (Note 1) ........................-0.3V to +18V Switching Node Voltage (VX) DC ..........................-0.3V to +18V DDH V .........................................................................-0.3V to +2V Switching Node Voltage (VX) 25ns (Note 2) ..........-10V to +23V CC OE ......................................................................-0.3V to +15.5V (BST - VX) Pin Differential ...................................-0.3V to +2.5V STAT, CLK, DATA, and Junction Temperature (T ) ...............................................+150C J SMALERT Pin Voltages .......................................-0.3V to +4V Storage Temperature Range ............................ -65C to +150C PGMA, PGMB, V and Peak Reflow Temperature Lead-Free .............................+260C SENSE+ V Pin Voltages .........................................-0.3V to +2V SENSE- 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. Operating Ratings Input Voltage (V ) ................................................4.5V to 16V Average Output Current (I ) .............................................10A DDH OUT V ......................................................................1.67V to 1.94V Peak Output Current (I ) .....................................................50A CC PK Junction Temperature (T ) ................................ -40C to +125C J Package Information PACKAGE TYPE: 15-PIN FC2QFN Package Code P154A6F+1 Outline Number 21-100020 Land Pattern Number 90-100021 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient ( max) JA 16.3C/W (Still Air, No Heatsink) (Note 3) Junction to Case ( max) 0.62C/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: As measured at the V pin referenced to GND pin immediately adjacent using a high-frequency scope probe with I DDH LOAD at I . A high-frequency input bypass capacitor must be located less than 60 mils from the V pin per our design MAX DDH guidelines. Note 2: The 25ns rating is the allowable voltage on the VX node in excess of the -0.3V to +18V DC ratings. The VX voltage may exceed the DC rating in either the positive or negative direction for up to 25ns per cycle. Note 3: Data taken using Maxims evaluation kit (MAX20710EVKIT ). The PCB has four layers of 2oz copper.. Maxim Integrated 2 www.maximintegrated.com