EVALUATION KIT AVAILABLE MAX15301AA02 InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry General Description Benefits and Features The MAX15301AA02 is a full-featured, highly efficient, InTune Automatic Compensation Ensures Stability digital point-of-load (PoL) controller with advanced power While Optimizing Transient Performance management and telemetry features. Unlike PID-based State-Space Compensation Results in Fast Transient digital power regulators, the MAX15301AA02 uses Response with Reduced Output Capacitance Maxims patented InTune automatically compensated, Differential Remote Voltage Sensing Enables 1% state-space control algorithm. The InTune control law V Accuracy over Temperature (-40C to +85C) is valid for both the small- and large-signal response OUT and accounts for duty-cycle saturation effects. These PMBus Interface for Configuration, Control, and capabilities result in fast loop transient response and Monitoring reduce the number of output capacitors compared to com- Supports Voltage Positioning peting digital controllers. High Output 2A/4A MOSFET Driver The MAX15301AA02 includes multiple features to optimize efficiency. An internal switch BabyBuck Adjustable Nonoverlap Timing regulator generates the gate drive and the internal Variable Gate-Drive Voltage bias supplies for the controller with low power loss. Wide Input Range of 4.5V to 14V An advanced, high-efficiency MOSFET gate driver has adjustable nonoverlap timing and load-variable gate-drive Efficient On-Chip BabyBuck Regulator for Self-Bias voltage to minimize switching losses over the full range of Output Voltage Range from 0.5V to 5.25V voltage, current, and temperature. Startup into a Prebiased Output The MAX15301AA02 was designed for end-customers Configurable Soft-Start and Soft-Stop Time design environment. An on-board PMBus-compliant serial bus interface enables communication with a super- Fixed-Frequency Operation and Synchronization visory controller for monitoring and fault management. A Flexible Sequencing and Fault Management full suite of power management features eliminates the Pin-Strappable Configuration need for complicated and expensive sequencing and monitoring ICs. Basic DC-DC conversion operation can Output Voltage, SMBus Address, Switching be set up via pin strapping and does not require user Frequency, Current Limit configuration firmware. This allows for rapid develop- Out-of-the-Box Operation Enables Fast Prototyping ment of the power-supply subsystem before board- level systems engineering is completed. Maxim provides Applications support hardware and software for configuring the IC. Servers The MAX15301AA02 is available in a 32-lead, 5mm x Storage Systems 5mm TQFN package and operates over the -40C to Routers/Switches +85C temperature range. Base-Station Equipment Power Modules InTune and BabyBuck are trademarks of Maxim Integrated Products, Inc. PMBus is a trademark of SMIF, Inc. Maxim patents apply: 7498781, 7880454, 7696736, 7746048, 7466254, 7986135, 7498781, 8,120,401, 8,014,879. This product is subject to a license from Power-One, Inc., related to digital power technology patents owned by Power- Ordering Information and Typical Operating Circuit appear One, Inc. This license does not extend to merchant market at end of data sheet. stand-alone power-supply products. 19-7508 Rev 0 2/15MAX15301AA02 InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry Absolute Maximum Ratings INSNS to SGND ....................................................-0.3V to +14V 1P8 to DGND .......................................................-0.3V to +2.2V LXSNS to SGND ......................................................-2V to +14V CIO, SET, PG, ADDR0, ADDR1, SYNC, TEMPX, LXSNS (pulse < 10ns) to SGND ..............................-2V to +20V SALRT to DGND ..............................................-0.3V to +4V OUTP, OUTN, DCRP, DCRN to SGND ................-0.3V to +5.5V EN, SCL, SDA to DGND .........................................-0.3V to +4V PWR to PGND .......................................................-0.3V to +18V PGND to SGND ....................................................-0.3V to +0.3V 3P3 to SGND................................. -0.3V to the minimum of +4V DGND to SGND ...................................................-0.3V to +0.3V or (V + 0.3V) Electrostatic Discharge (ESD) Rating GDRV GDRV to SGND ........................... -0.3V to the minimum of +12V Human Body Model (HBM) .........................................3500V or (V + 0.3V) Machine Model ..............................................................200V PWR LX to PGND........-2V to the minimum of +26V or (V + 0.3V) Junction Temperature ......................................................+125C BST DL to PGND ......................................... -0.3V to (V + 0.3V) Operating Temperature Range ........................... -40C to +85C GDRV LBI to PGND...........................................-0.3V to (V + 0.3V) Continuous Power Dissipation (T = +70C) PWR A LBO to PGND ...........................(V - 0.3V) to (V + 0.3V) TQFN (derate 34.5mW/C above +70C)..................2758mW 3P3 GDRV DH to PGND ................................. (V - 0.3V) to (V + 0.3V) Storage Temperature Range ............................ -65C to +150C LX BST BST to LX ..............................................................-0.3V to +12V Lead Temperature (soldering, 10s) .................................+300C BST to PGND ........................................................-0.3V to +26V Soldering Temperature (reflow) .......................................+260C BST to GDRV ........................................................-0.3V to +26V 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 Thermal Characteristics (Note 1) TQFN Junction-to-Ambient Thermal Resistance ( ) ..........29C/W Junction-to-Case Thermal Resistance ( ) ..................1.7C/W JA JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (All settings = factory default, V = V = 12V, V = V = V = 0V, V = 1.2V, f = 600kHz. Specifications are PWR INSNS SGND DGND PGND OUT SW for T = T = -40C to +85C, typical values are at T = T = +25C. See the Typical Operating Circuit, unless otherwise noted.)(Note 2) A J A J PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT SUPPLY Input Voltage Range V 4.5 14 V PWR BabyBuck bias supply, driver not 10 switching Input Supply Current I mA PWR Linear mode bias supply, driver not 24 50 switching Input Overvoltage Lockout V Input rising 14.3 15.2 16.0 V OVLO(PWR) Threshold Rising edge 3.8 4.1 4.4 Input Undervoltage Lockout V V UVLO(PWR) Threshold Hysteresis 0.24 BIAS REGULATORS 3P3 Output Voltage V I = 0mA 3.3 V 3P3 LOAD(3P3) 1P8 Output Voltage V I = 0mA 1.80 V 1P8 LOAD(1P8) Maxim Integrated 2 www.maximintegrated.com