MAX25600 Synchronous High-Voltage Four-Switch Buck- Boost LED Controller Absolute Maximum Ratings IN, UVEN to SGND ...-0.3V to +52V ICTRL, PWM, FB, and FLT to SGND...-0.3V to +6V INN, INP, ISP, ISN, and DIMOUT to PGND ...-0.3V to +65V PGND to SGND ..-0.3V to +0.3V ISP to ISN ...-0.3V to +0.6V VCC Short-Circuit Duration ..Continuous LX1, LX2 to PGND ..-1.0V to +65V Continuous Power Dissipation (TQFN) BST_ to LX_ ..-0.3V to +6V (TA = +70°C, derate, 28.6mW/°C above +70°C) ...2285mW DH_ to LX_ .. -0.3V to VBST+0.3V Continuous Power Dissipation (TSSOP) DL1, DL2 to PGND ... -0.3V to (VVCC+0.3)V (TA = +70°C, derate 27mW/°C above +70°C) ...2162mW CSP, CSN to SGND ..-2.5V to +6V Operating Junction-Temperature Range CSP to CSN ...-0.5V to +0.5V (Note 1, 2)... -40°C to +125°C IOUTV, COMP, RT, SS .. -0.3 to VVCC+0.3 Storage-Temperature Range .. -40°C to +150°C VCC to SGND ..-0.3V to +6V Soldering Temperature (reflow) ...+260°C 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 Information28-TQFNPACKAGE CODET2855Y+5C Outline Number 21-100130 Land Pattern Number 90-0027Thermal Resistance, Single-Layer Board: Junction to Ambient (θJA) 68°C/W Junction to Case (θJC) 11°C/W Thermal Resistance, Four-Layer Board: Junction to Ambient (θJA) 60°C/W Junction to Case (θJC) 11°C/W 28-TSSOPPACKAGE CODEU28E+1C Outline Number 21-100182 Land Pattern Number 90-100069Thermal Resistance, Single-Layer Board: Junction to Ambient (θJA) 78°C/W Junction to Case (θJC) 13°C/W Thermal Resistance, Four-Layer Board: Junction to Ambient (θJA) 71.6°C/W Junction to Case (θJC) 13°C/W For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. 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 . www.maximintegrated.com Maxim Integrated │ 2