EVALUATION KIT AVAILABLE MAX15301 InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry General Description Features The MAX15301 is a full-featured, highly efficient, digital InTune Automatic Compensation Ensures Stability point-of-load (PoL) controller with advanced power man- While Optimizing Transient Performance agement and telemetry features. Unlike PID-based digital State-Space Compensation Results in Fast Transient power regulators, the MAX15301 uses Maxims patented Response with Reduced Output Capacitance InTune automatically compensated, state-space control Differential Remote Voltage Sensing Enables 1% algorithm. The InTune control law is valid for both the V Accuracy over Temperature (-40C to +85C) small- and large-signal response and accounts for duty- OUT cycle saturation effects. These capabilities result in fast PMBus Interface for Configuration, Control, and loop transient response and reduce the number of output Monitoring capacitors compared to competing digital controllers. Supports Voltage Positioning The MAX15301 includes multiple features to optimize High Output 2A/4A MOSFET Driver efficiency. An internal switch BabyBuck regulator gen- erates the gate drive and the internal bias supplies for Adjustable Nonoverlap Timing the controller with low power loss. An advanced, high- Variable Gate-Drive Voltage efficiency MOSFET gate driver has adjustable nonoverlap Wide Input Range of 4.5V to 14V timing and load-variable gate-drive voltage to minimize switching losses over the full range of voltage, current, Efficient On-Chip BabyBuck Regulator for Self-Bias and temperature. Output Voltage Range from 0.5V to 5.25V The MAX15301 was designed for end-customers design Startup into a Prebiased Output environment. An on-board PMBus-compliant serial bus Configurable Soft-Start and Soft-Stop Time interface enables communication with a supervisory con- troller for monitoring and fault management. A full suite Fixed-Frequency Operation and Synchronization of power management features eliminates the need for Flexible Sequencing and Fault Management complicated and expensive sequencing and monitoring Pin-Strappable Configuration ICs. Basic DC-DC conversion operation can be set up via pin strapping and does not require user configura- Output Voltage, SMBus Address, Switching tion firmware. This allows for rapid development of the Frequency, Current Limit power-supply subsystem before board-level systems Out-of-the-Box Operation Enables Fast Prototyping engineering is completed. Maxim provides support hard- ware and software for configuring the MAX15301. Applications The MAX15301 is available in a 32-lead, 5mm x 5mm Servers TQFN package and operates over the -40C to +85C Storage Systems temperature range. Routers/Switches Base Station Equipment Power Modules InTune and BabyBuck are trademarks of Maxim Integrated Products, Inc. Ordering Information and Typical Operating Circuit appears at end of data sheet. PMBus is a trademark of SMIF, Inc. Maxim patents apply: 7498781, 7880454, 7696736, 7746048, For related parts and recommended products to use with this part, refer 7466254, 798613, 7498781, 8,120,401, 8,014,879. to www.maximintegrated.com/MAX15301.related. This product is subject to a license from Power-One, Inc., relat- ed to digital power technology patents owned by Power-One, Inc. This license does not extend to merchant market stand- alone power-supply products. 19-6267 Rev 4 11/13MAX15301 InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry Absolute Maximum Ratings INSNS to SGND ....................................................-0.3V to +14V BST to GDRV ........................................................-0.3V to +26V LXSNS to SGND ......................................................-2V to +14V 1P8 to DGND .......................................................-0.3V to +2.2V LXSNS (pulse < 10ns) to SGND ..............................-2V to +20V CIO, SET, PG, ADDR0, ADDR1, SYNC, TEMPX, OUTP, OUTN, DCRP, DCRN to SGND ................-0.3V to +5.5V SALRT to DGND ..............................................-0.3V to +4V PWR to PGND .......................................................-0.3V to +18V EN, SCL, SDA to DGND .........................................-0.3V to +4V HLD to SGND ..........................................................-0.3V to +4V 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 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