Evaluation Kit Design Tools Support Available Resources and Models Click here to ask an associate for production status of specific part numbers. 36V, 2.5MHz Automotive Boost/ MAX16990/MAX16992 SEPIC Controllers General Description Benefits and Features The MAX16990/MAX16992 are high-performance, Minimized Radio Interference with 2.5MHz Switching current-mode PWM controllers with 4A (typ) shut- Frequency Above the AM Radio Band down current for wide input voltage range boost/SEPIC Space-Efficient Solution Design with Minimized converters. The 4.5V to 36V input operating volt- External Components age range makes these devices ideal in automotive 100kHz to 1MHz (MAX16990) and 1MHz to applications, such as front-end preboost or SEPIC 2.5MHz (MAX16992) Switching-Frequency Ranges power supplies and for the first boost stage in high- 12-Pin TQFN (3mm x 3mm) and 10-Pin MAX power LED lighting applications. An internal low-dropout Packages regulator (PVL regulator) with a 5V output voltage Spread Spectrum Simplifies EMI Management Design enables the MAX16990/MAX16992 to operate directly Flexibility with Available Configurations for Boost, from an automotive battery input. The input operating SEPIC, and Multiphase Applications range can be extended to as low as 2.5V when the Adjustable Slope Compensation converter output is applied to the SUP input. Current-Mode Control There are multiple versions of the devices offering one Internal Soft-Start (9ms) or more of the following functions: a synchronization Protection Features Support Robust Automotive output (SYNCO) for two-phase operation, an overvoltage Applications protection function using a separate input pin (OVP), and Operating Voltage Range Down to 4.5V (2.5V or a reference input pin (REFIN) to allow on-the-fly output Lower in Bootstrapped Mode), Immune to voltage adjustment. Load-Dump Transient Voltages Up to 42V The MAX16990 and MAX16992 operate in different PGOOD Output and Hiccup Mode for Enhanced frequency ranges. All versions can be synchronized to an System Protection external master clock using the FSET/SYNC input. Overtemperature Shutdown In addition, the MAX16990/MAX16992 have a factory- -40C to +125C Operation programmable spread-spectrum option. Both devices are available in compact 12-pin TQFN and 10-pin MAX Typical Application Circuit packages. Applications BOOTSTRAPPED 2.2MHz APPLICATION WITH LOW OPERATING VOLTAGE 22F Automotive LED Lighting Automotive Audio/Navigation Systems 0.47H P BATTERY INPUT SW OUT 2.5V to 40V 8V/2A Dashboards 47F 1F CERAMIC 17k PVL SUP DRV N 10k 10k Ordering Information appears at end of data sheet. 91k 1k PGOOD PGOOD N ISNS PVL 22m MAX16992AUBA/B 2.2F FB FSET/SYNC COMP 13k 12k EN N GND ENABLE MAX is a registered trademark of Maxim Integrated Products, Inc. 19-6632 Rev 18 10/21 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 2021 Analog Devices, Inc. All rights reserved.MAX16990/MAX16992 36V, 2.5MHz Automotive Boost/ SEPIC Controllers Absolute Maximum Ratings EN, SUP, OVP, FB to GND ...................................-0.3V to +42V TQFN 12 on MLB (derate 21.32mW/C above +70C) ...705mW DRV, SYNCO, FSET/SYNC, COMP, TQFN 16 on SLB (derate 14.7mW/C above +70C) ... 1176mW TQFN 16 on MLB (derate 23.1mW/C above +70C) ...1847mW PGOOD, ISNS, REFIN to GND ...........-0.3V to (V + 0.3V) PVL PVL to GND ...............................................................-0.3V to 6V Operating Temperature Range ......................... -40C to +125C Maximum Junction Temperature .....................................+150C Continuous Power Dissipation (T = +70C) A MAX on SLB (derate 10.3mW/C above +70C) ......825mW Storage Temperature Range ............................ -65C to +150C Lead Temperature (soldering, 10s) .................................+300C MAX on MLB (derate 12.9mW/C above +70C) ....1031mW TQFN 12 on SLB (derate 13.2mW/C above +70C) ...1053mW 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) MAX (Single-Layer Board) TQFN-12 (Four-Layer Board) Junction-to-Ambient Thermal Resistance ( ) ..........97C/W Junction-to-Ambient Thermal Resistance ( ) .......46.9C/W JA JA Junction-to-Case Thermal Resistance ( ) .................5C/W Junction-to-Case Thermal Resistance ( ) ............5.27C/W JC JC MAX (Four-Layer Board) TQFN-16 (Single-Layer Board) Junction-to-Ambient Thermal Resistance ( ) ..........78C/W Junction-to-Ambient Thermal Resistance ( ) ..........68C/W JA JA Junction-to-Case Thermal Resistance ( ) .....................5C/W Junction-to-Case Thermal Resistance ( ) ...............10C/W JC JC TQFN-12 (Single-Layer Board) TQFN-16 (Four-Layer Board) Junction-to-Ambient Thermal Resistance ( ) ..........76C/W Junction-to-Ambient Thermal Resistance ( ) .......43.3C/W JA JA Junction-to-Case Thermal Resistance ( ) ...............11C/W Junction-to-Case Thermal Resistance ( ) ..............4.0C/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 = -40C to +125C, unless otherwise noted. Typical values are at T =+25C.) (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 MAX16990 0.75 1.3 V = 1.1V, no FB SUP Supply Current in Operation I mA CC switching MAX16992 1.25 2 SUP Supply Current in Shutdown I V = 0V 4 7 A SHDN EN % of OVP Threshold Voltage V OVP rising (REFIN = PVL) 105 110 115 OVP V FB OVP Threshold Voltage % of V 2.5 OVPH Hysteresis V FB OVP Input Current I -1 +1 A OVP PVL REGULATOR 4.7 5 5.3 PVL Output Voltage V V PVL MAX16990/MAX16992 16-pin QFN 4.7 5 5.45 SUP rising 3.8 4 4.3 PVL Undervoltage Lockout V V UV MAX16990/MAX16992 16-pin QFN 3.7 4 4.4 PVL Undervoltage-Lockout V 0.4 V UVH Hysteresis www.analog.com Analog Devices 2