EVALUATION KIT AVAILABLE MAX5086 45V, 250mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay General Description Features The MAX5086 high-voltage linear regulator operates Wide Operating Input Voltage Range (6.5V to 45V) from a 6.5V to 45V input voltage and delivers up to Thermally Enhanced Package Dissipates a 250mA output current. The device consumes only 2.6W at T = +70C (16-Pin TQFN) A 70A of quiescent current with no load and 13A in Guaranteed 250mA Output Current shutdown. The device includes a SET input, that when 70A Quiescent Supply Current connected to ground, selects a preset output voltage of 3.3V (MAX5086A) or 5.0V (MAX5086B). Alternatively, Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V Output Voltage the output voltage can be adjusted from 2.5V to 11V by simply connecting SET to the regulators output through a Remote Load Sense resistive divider network. The MAX5086 also provides an Integrated Microprocessor Reset Circuit with open-drain, active-low microprocessor reset output that Programmable Timeout Period asserts when the regulator output drops below the preset Thermal and Short-Circuit Protection output voltage threshold. An external capacitor programs the reset timeout period. Other features include an enable -40C to +125C Operating Temperature Range input, thermal shutdown, and short-circuit protection. Ordering Information The MAX5086 operates over the automotive temperature range of -40C to +125C and is available in a 16-pin OUTPUT PART PIN-PACKAGE VOLTAGE (V) TQFN thermally enhanced package. MAX5086AATE+ 3.3 16 TQFN-EP* Applications MAX5086AATE 3.3 16 TQFN-EP* Industrial MAX5086BATE+ 5.0 16 TQFN-EP* Home Security/Safety MAX5086BATE 5.0 16 TQFN-EP* Networking Note: All devices are specified over the -40C to +125C oper- ating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Pin Configuration TOP VIEW 12 11 10 9 N.C. 13 8 GND N.C. 14 7 OUTSENSE MAX5086 N.C. 15 6 OUT N.C. 16 5 OUT + 1 2 3 4 TQFN 19-3878 Rev 3 5/14 N.C. N.C. EN CT IN RESET SET INMAX5086 45V, 250mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay Absolute Maximum Ratings IN to GND (do not exceed Continuous Power Dissipation (T = +70C) A package power dissipation) ...............................-0.3V to +50V TQFN (derate 33.3mW/C above +70C)..................2666mW IN to GND (T 300ms, I 250mA) ................-0.3V to +42V Thermal Resistance (Note 1): OUT EN to GND ............................................................-0.3V to +50V ( , 16-Pin TQFN) ..................................................30.0C/W JA RESET, OUT, OUTSENSE to GND ......................-0.3V to +12V ( , 16-Pin TQFN) .......................................................2C/W JC CT, SET to GND ...................................................-0.3V to +3.5V Operating Temperature Range ......................... -40C to +125C IN to OUT ..............................................................-0.3V to +50V Junction Temperature ......................................................+150C Short-Circuit Duration (V < 16V) ............................Continuous Storage Temperature Range ............................ -60C to +150C IN Maximum Current into Any Pin (except IN, OUT) ............20mA Lead Temperature (soldering, 10s) .................................+300C 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. 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. Electrical Characteristics (V = 14V, I = 1mA, C = 47F (low ESR), C = 15F, V = 2.4V, 10k from RESET to OUT, T = T = -40C to +125C, IN OUT IN OUT EN A J unless otherwise noted. Typical specifications are at T = +25C.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage Range V V V + 1.5V 6.5 45 V IN IN OUT I = 0 70 115 OUT Measured at GND, Supply Current I A Q SET = GND I = 250mA 1250 OUT Shutdown Supply Current I V 0.4V 13 21 A SHDN EN REGULATOR Guaranteed Output Current I V = 6.5V, V = 5.0V 250 mA OUT IN OUT 6.5V V 25V, IN 4.85 5 5.15 5mA I 250mA SET = GND, OUT 5V Version 6.5V V 45V, IN 4.85 5 5.15 5mA I 100mA OUT Output Voltage (Note 3) V 6.5V V 25V, V OUT IN 3.217 3.3 3.392 5mA I 250mA OUT SET = GND, 3.3V version 6.5V V 45V, IN 3.217 3.3 3.392 5mA I 100mA OUT I = 5mA, adjustable range 2.5 11.0 OUT Dropout Voltage (Note 4) V I = 250mA, V = 5V 0.9 2.2 V DO OUT OUT Startup Response Rising edge of V to V , IN OUT 400 s Time (Note 5) R = 500, SET = GND L 5V version -1 +1 V / OUT Line Regulation 6.5V V 45V mV/V IN V IN 3.3V version -0.5 +0.8 V = high, regulator on 2.4 EN Enable Voltage V V EN V = low, regulator off 0.4 EN Maxim Integrated 2 www.maximintegrated.com