MAX38801 Integrated, Step-Down Switching Regulator With Selectable Applications Configurations General Description Benefits and Features The MAX38801 is a fully integrated, highly efficient High-Efficiency Solution switching regulator for applications operating from 6.5V to Up to 96% Peak 14V input supplies that require up to 15A maximum load. Up to 92% Full Load Up to 94% Light-Load Efficiency at 1A with DCM This single-chip regulator provides compact high-efficiency power delivery for precision outputs that demand fast Enabled transient response. Flexible Design Allows Early PCB Definition Footprint Compatible with MAX38800 (9A) and The device has different programmability options to enable a wide range of configurations. The programmable MAX38802/MAX38803 (25A) Programmable Switching Frequency up to 900kHz features include: internal/external reference voltage, output voltage set-point, switching frequency, overcurrent- Programmable Soft-Start and STAT Delay Timings Programmable Reference Voltage with External protection level (OCP), and soft-start timing. Discontinuous Input Option current mode (DCM) operation can be enabled using pin- Programmable Positive and Negative OCP Limit strapping to improve light-load efficiency. Advanced Architecture, Protection and Reporting The MAX38801 includes multiple protection and Guarantees Reliable Designs measurement features. Positive and negative cycle-by- Analog Current or Temperature Reporting cycle OCP, short-circuit protection and overtemperature Differential Remote Sense with Open-Circuit protection (OTP) ensure robust design. Input undervoltage Detection and overvoltage lockout shut down the regulator to Fast Transient Response with Quick-PWM prevent damages when the input voltage is out of Architecture specification. Regulation is halted in case of an output Percentage-Based Output Power Good and OVP overvoltage (OVP) event. A status pin indicates that the Open-Drain Status Indicator (STAT) Pin output voltage is within range and the output voltage is in Input Undervoltage and Overvoltage Lockout regulation. The device has an analog output that can be Adaptive Dead-Time Control configured to report output current or junction temperature with 5% and 8C accuracy, respectively. Saves Board Space Integrated Boost Switch Applications 19-Ball WLCSP (2.2mm x 2.8mm) Footprint Servers/Servers Operation Using Ceramic Input and Output I/O and Chipset Supplies Capacitors GPU Core Supply DDR Memory: VDDQ, VPP and VTT Basic Application Circuit Point-of-Load (PoL) Applications V V CC DDH C C VCC IN V V CC DDH CURRENT INPUT OUTPUT MAX38801 C BST V OUT BST RATING (A) VOLTAGE (V) VOLTAGE (V) R STAT L OUT 15 6.5 to 14 0.6 to 5.5 VX Ramp Compensation R R STAT SENSE+ CR1 CR2 R OE OE SENSE- R FB1 Ordering Information appears at end of data sheet. AGND GND C R LEAD LEAD PGM R LAG Lead Compensation C SEL C R SEL OUT R C FB2 LAG Quick-PWM is a trademark of Maxim Integrated Products, Inc. 19-100158 Rev 0 9/17 Lag CompensationMAX38801 Integrated, Step-Down Switching Regulator With Selectable Applications Configurations Absolute Maximum Ratings Input/Output Pin Voltages V - VX Differential 25ns (Note 2) .....................-10V to +23V DDH (OE, PGM, SENSE+, SENSE-) ...........................-0.3V to +2V BST Pin (BST) DC.................................................-0.3V to +20V Regulator Status Output (STAT) ..............................-0.3V to +4V BST Pin (BST) 25ns ..............................................-7.0V to +27V Input Voltage (V ) DC ......................................-0.3V to +23V BST Pin - VX Differential .........................................................4V DDH Bias Supply Voltage (V ) ......................................-0.3V to +2V Junction Temperature (T ) .................................................150C CC J Switching Node Voltage (VX) DC ..........................-0.3V to +23V Storage Temperature Range ............................ -65C to +150C Switching Node Voltage (VX) 25ns (Note 1) ..........-10V to +23V Peak Reflow Temperature Lead-Free ...............................260C V Pin - VX Pin Differential DC ........................................23V DDH 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. Operating Ratings Input Voltage (V ) ................................................6.5V to 14V Junction Temperature (T ) .....................................0C to 125C DDH J Bias Supply Voltage (V ) ................................. 1.71V to 1.89V Peak Output Current (I ) ......................................... 30A CC PK+ MAX Output Current (I ) ......................................................... 15A OUT Package Information PACKAGE CODE C192B2+1 Outline Number 21-0915 Land Pattern Number Refer to Application Note 1891 THERMAL RESISTANCE, SINGLE-LAYER BOARD Junction to Ambient ( ) 32C/W (typ) (Note 3) JA Junction to Case ( ) 1C/W (max) JC 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. Note 1: The 25ns rating is the allowable voltage on the VX node in excess of the -0.3V to 16V DC ratings. The VX voltage can exceed the DC rating in either the positive or negative direction for up to 25ns per cycle. Note 2: The V input pin voltage AC should not exceed 19V (25ns). This measurement is taken at the V pin referenced DDH DDH to V pin immediately adjacent using a high frequency scope probe with I at I . A high-frequency input bypass SS LOAD MAX capacitor must be located less than 60mils from the V pin and the Maxim device per our design guidelines. DDH Note 3: Data taken using Maxims evaluation kit with no air flow and no heatsink. Maxim Integrated 2 www.maximintegrated.com