MAX25203ATJA/VY+ Analog Devices

Click here to ask about the production status of specific part numbers. MAX25203 Dual-Phase Synchronous Boost Controller with 2 Programmable Gate Drive and I C General Description Benefits and Features The MAX25203 automotive dual-phase synchronous Meets Stringent OEM Module Power Consumption boost controller enables infotainment systems to stay in and Performance Specifications regulation during cold-crank or start-stop operation all the 1.5% Output-Voltage Accuracy at FB way down to a battery input of 1.8V. It can also be used Output Voltage Adjustable Between 12V and 65V to generate backlight voltage and Class D audio amplifier (70V Abs Max) voltages. This device can start with an input voltage sup- 5A Shutdown Supply Current ply from 4.5V to 42V and can operate down to 1.8V after High Efficiency and Current Sharing start-up, and has a low 5A shutdown supply current. Pass-Through for >98% Efficiency The MAX25203 operates at up to 2.1MHz frequency to al- OTP Gate Drive Voltage from 6.5V to 10V Allows low small external components and reduced output ripple, User to Optimize External MOSFETs and Improve and to guarantee no AM band interference. The switching Efficiency frequency is resistor adjustable (220kHz to 2100kHz) or it Current Sharing Accuracy of 5% Between Phases can be synchronized on-the-fly to an external clock. to Improve System Efficiency Programmable Current-Limit Blanking Handles High The MAX25203 has a spread-spectrum option for fre- Peak Loads without Oversizing Inductor quency modulation to minimize EMI interference. A 90 out-of-phase clock output enables synchronizing a second EMI-Reduction Features Reduce Interference with MAX25203 for quad-phase operation. Sensitive Radio Bands without Sacrificing Wide Input Voltage Range Pass-through operation has over 98% efficiency when the Spread-Spectrum Option supply voltage exceeds the output regulation voltage. Pro- On-the-Fly Frequency-Synchronization Input grammable current-limit blanking handles high peak loads Resistor-Programmable Frequency between without oversizing the inductor. 220kHz and 2.1MHz The MAX25203 features a power-OK monitor and under- Synchronization Output Provides 90 Out-of-Phase voltage lockout. Protection features include cycle-by-cycle Clock for Quad-Phase Operation current limit and thermal shutdown. It operates over the Integration and Thermally Enhanced Package Saves -40C to +125C automotive temperature range. Board Space and Cost Current-Mode Controllers with Forced-Continuous Applications and Skip Modes Infotainment Systems Side-Wettable, 32-Pin TQFN-EP Package Automotive Audio Amplifier 2 Protection Features and I C Diagnostics for Improved System Reliability Supply Undervoltage Lockout 2 Die Temperature Monitoring through I C TM Short-Circuit Protection with True Shutdown 2 Individual Phase Current Monitoring through I C Ordering Information appears at end of data sheet. True Shutdown is a trademark of Maxim Integrated Products, Inc. 19-101004 Rev 1 8/21MAX25203 Dual-Phase Synchronous Boost Controller with 2 Programmable Gate Drive and I C Simplified Block Diagram BATT C SUP SUP EN CS1P PWM CS1N SYNCOUT FSYNC DH1 L1 R CS1 LX1 PGOOD/IRQ DL1 SDA SCL BST1 OPTIONAL OUTPUT FOSC DISCONNECT OUTS SS DRV OUT R FOSC CSS C OUTS C MAX25203 OUT BIAS BST2 BATT OUT DH2 L2 R CS2 OUTS OUTS LX2 0.1F BIAS FB DL2 COMP CS2P CS2N PGATE R C EP PGND CF GND CC www.maximintegrated.com Maxim Integrated 2