EVALUATION KIT AVAILABLE MAX17290/MAX17292 2.5V to 36V, 2.5MHz, PWM Boost Controller with 4A Shutdown Current and Reduced EMI General Description Benefits and Features The MAX17290/MAX17292 high-efficiency, synchronous Reduces Solution Size and Cost step-up DC-DC controllers operate over a 4.5V to 36V All-Ceramic Capacitor Solution Allows Ultra-Compact Solution Size input voltage range with 42V input transient protection. The input operating range can be extended to as low as 100kHz to 1MHz (MAX17290) and 1MHz to 2.5MHz (MAX17292) Switching-Frequency with 2.5V in Bootstrapped mode. External Synchronization The MAX17290 and MAX17292 use a constant-frequency, pulse-width modulating (PWM), peak current-mode Increases Design Flexibility Bootstrapped Mode Allows Input Voltage to be 2.5V control architecture. There are multiple versions of the devices offering one or more of the following functions: Adjustable Slope Compensation a synchronization output (SYNCO) for 180 out-of-phase Reduces Power Dissipation operation, an overvoltage protection function using a >90% Peak Efficiency separate input pin (OVP), and a reference input pin Low 4A (typ.) Shutdown Current (REFIN) to allow on-the-fly output voltage adjustment. Operates Reliably The MAX17290 and MAX17292 operate in different 42V Input Voltage Transient Protection frequency ranges. All versions can be synchronized to an Fixed 9ms Internal Software Start Reduces Input external master clock using the FSET/SYNC input. Inrush Current PGOOD Output and Hiccup Mode for Enhanced The devices are available in a compact 12-pin (3mm x System Protection 3mm) TQFN and 10-pin MAX packages. Both packages Overtemperature Shutdown have exposed pads. -40C to +85C Operation. Reduced EMI Emission with Spread-Spectrum Control Applications Distributed Supply Regulation Typical Application Circuit Offline Power Supplies Telecom Hardware General-Purpose Point-of-Load 22F BOOTSTRAPPED 2.2MHz APPLICATION WITH LOW OPERATING VOLTAGE 0.47H BATTERY INPUT SW OUT 2.5V to 40V 8V/2A 47F CERAMIC PVL SUP DRV N 10k 91k 1k PGOOD ISNS 22m PVL MAX17292EUBA/B 2.2F FB FSET/SYNC COMP 13k 12k EN GND Ordering Information appears at end of data sheet. ENABLE MAX is a registered trademark of Maxim Integrated Products, Inc. 19-8544 Rev 0 8/16MAX17290/MAX17292 2.5V to 36V, 2.5MHz, PWM Boost Controller with 4A Shutdown Current and Reduced EMI Absolute Maximum Ratings EN, SUP, OVP, FB to GND ....................................-0.3V to +42V Operating Temperature Range .......................... -40NC to +85NC DRV, SYNCO, FSET/SYNC, COMP, Maximum Junction Temperature .....................................+150NC Storage Temperature Range ............................ -65NC to +150NC PGOOD, ISNS, REFIN to GND ............ -0.3V to (V + 0.3V) PVL Lead Temperature (soldering, 10s) ................................+300NC PVL to GND ............................................................... -0.3V to 6V Soldering Temperature (reflow) ......................................+260NC Continuous Power Dissipation (T = +70NC) A MAX on SLB (derate 10.3mW/NC above +70NC) ......825mW MAX on MLB (derate 12.9mW/NC above +70NC) ....1031mW TQFN on SLB (derate 13.2mW/NC above +70NC) .....1053mW TQFN on MLB (derate 14.7mW/NC above +70NC) ....1176mW 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) MAX (Single-Layer Board) TQFN (Single-Layer Board) Junction-to-Ambient Thermal Resistance (B ) ..........97NC/W Junction-to-Ambient Thermal Resistance (B ) ..........76NC/W JA JA Junction-to-Case Thermal Resistance (B ) .................5NC/W Junction-to-Case Thermal Resistance (B ) ...............11NC/W JC JC MAX (Four-Layer Board) TQFN (Four-Layer Board) Junction-to-Ambient Thermal Resistance (B ) ..........78NC/W Junction-to-Ambient Thermal Resistance (B ) ..........68NC/W JA JA Junction-to-Case Thermal Resistance (B ) .................5NC/W Junction-to-Case Thermal Resistance (B ) ...............11NC/W JC 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 (V = 14V, T = T = -40NC to +85NC, unless otherwise noted. Typical values are at T =+25NC.) (Note 2) SUP A J A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY SUP Operating Supply Range V 4.5 36 V SUP MAX17290 0.75 1.3 V = 1.1V, no FB SUP Supply Current in Operation I mA CC switching MAX17292 1.25 2 SUP Supply Current in Shutdown I V = 0V 4 7 FA SHDN EN % of OVP Threshold Voltage V OVP rising 105 110 115 OVP V FB OVP Threshold Voltage % of V 2.5 OVPH Hysteresis V FB OVP Input Current I -1 +1 FA OVP PVL REGULATOR PVL Output Voltage V 4.7 5 5.45 V PVL PVL Undervoltage Lockout V SUP rising 3.8 4 4.3 V UV PVL Undervoltage-Lockout V 0.4 V UVH Hysteresis Maxim Integrated 2 www.maximintegrated.com