MAX5088ATE+ Maxim Integrated Products, MAX5088ATE+ Datasheet

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... Integrated 150mΩ High-Side n-Channel Power MOSFET ♦ Power-On Reset Output (MAX5088)/Power-Good Output (MAX5089) ♦ Short-Circuit Protection ♦ Thermal-Shutdown Protection ♦ Thermally Enhanced 16-Pin TQFN Package Dissipates 2.7W PART MAX5088ATE+ MAX5089ATE+ +Denotes lead-free package. Applications TOP VIEW FEATURES RESET Output, BST/VDD Clock Output ...

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Buck Converters with an Integrated High-Side Switch ABSOLUTE MAXIMUM RATINGS V+ to PGND............................................................-0.3V to +25V BST/VDD, DRAIN to SGND ....................................-0.3V to +30V SGND to PGND .....................................................-0.3V to +0.3V BST/VDD to SOURCE...............................................-0.3V to +6V SOURCE to SGND..................................................-0.6V to +25V ...

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Buck Converters with an ELECTRICAL CHARACTERISTICS (continued) ( 5.5V to 23V values are +25°C.) (Note PARAMETER SOFT-START Digital Soft-Start Period ...

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Buck Converters with an Integrated High-Side Switch ELECTRICAL CHARACTERISTICS (continued) ( 5.5V to 23V 5V values are +25°C.) (Note 1) A ...

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Buck Converters with an ( 5.2V +25°C, Figures 5 and 6, unless otherwise noted MAX5088 BUCK EFFICIENCY vs. OUTPUT CURRENT ( 2.2MHz 3.3V 80 ...

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Buck Converters with an Integrated High-Side Switch ( 5.2V +25°C, Figures 5 and 6, unless otherwise noted MAX5089 V DROPOUT VOLTAGE L vs. SWITCHING FREQUENCY 0.400 V+ = 5.5V 0.350 0.300 ...

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Buck Converters with an ( 5.2V +25°C, Figures 5 and 6, unless otherwise noted MAX5089 SOFT-START AND SHUTDOWN (I = 2A) OUT MAX5088/89 toc15 V = 12V IN V 1V/div OUT ...

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Buck Converters with an Integrated High-Side Switch PIN NAME Internal Power MOSFET Drain Connection. Use the MOSFET as a high-side switch and connect DRAIN to the 1, 2 DRAIN input supply. Transconductance Error Amplifier Output. Connect a compensation ...

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Buck Converters with an V+ DRAIN SYNC CKO OSCILLATOR OSC 2V 1V BYPASS V REF EN DIGITAL SOFT-START MAX5088 Figure 1. MAX5088 Block Diagram _______________________________________________________________________________________ Integrated High-Side Switch 4-PULSE SKIP ADAPTIVE BBM ...

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Buck Converters with an Integrated High-Side Switch V+ DRAIN SYNC OSCILLATOR OSC 2V 1V BYPASS V REF EN DIGITAL SOFT-START MAX5089 Figure 2. MAX5089 Block Diagram 10 ______________________________________________________________________________________ 4-PULSE SKIP ADAPTIVE BBM ...

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Buck Converters with an Detailed Description The MAX5088/MAX5089 use a pulse-width modulation (PWM) voltage-mode control scheme. The MAX5088 is a nonsynchronous converter and uses an external low- forward-drop Schottky diode for rectification. The MAX5089 is a synchronous converter ...

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Buck Converters with an Integrated High-Side Switch active-high input that turns the MAX5088/ MAX5089 on and off TTL logic input with 2.0V and 0.8V logic-high and low levels, respectively. When EN is ...

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Buck Converters with an At high input-to-output differential, and high switching frequency, the on-time drops to the order of 100ns. Even though the MAX5088/MAX5089 can control the on-time as low as 100ns, the internal current-limit circuit may not ...

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Buck Converters with an Integrated High-Side Switch Effective Input Voltage Range The MAX5088/MAX5089 can operate with input sup- plies ranging from 4.5V to 5.5V or 5.5V to 23V. The input voltage range (V+) can be constrained to a ...

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Buck Converters with an The input ripple comprises mainly of ∆V capacitor discharge) and ∆V (caused by the ESR of ESR the input capacitor). The total voltage ripple is the sum of ∆V and ∆V . Assume the ...

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Buck Converters with an Integrated High-Side Switch rent through the internal power MOSFET (P The total power dissipated in the package must be lim- ited so the junction temperature does not exceed its absolute maximum rating of +150°C ...

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Buck Converters with an Calculate the modulator gain (G M quency ESR = × π × V OSC ESR 2 where V is the 1V ramp amplitude and V OSC P-P The ...

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Buck Converters with an Integrated High-Side Switch V OUT R1 R2 Figure 3. Type II Compensation Network V OUT Figure 4. Type III Compensation Network 18 ______________________________________________________________________________________ REF R ...

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Buck Converters with an Improving Noise Immunity When using the MAX5088/MAX5089 in noisy environ- ments, adjust the controller’s compensation to improve the system’s noise immunity. In particular, high-fre- quency noise coupled into the feedback loop causes duty-cycle jitter. ...

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Buck Converters with an Integrated High-Side Switch Figure 5. MAX5088 Buck Configuration 20 ______________________________________________________________________________________ ...

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Buck Converters with an Figure 6. MAX5089 Buck Configuration ______________________________________________________________________________________ Integrated High-Side Switch 21 ...

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Buck Converters with an Integrated High-Side Switch SOURCE DUTY CYCLE = 50% SYNC CLKOUT CLKIN MASTER SYNC CLKOUT (MASTER) SOURCE (MASTER) SYNC PHASE SOURCE (SLAVE) CLKOUT Figure 7. Synchronized Converters Pin Configurations (continued) TOP VIEW ...

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Buck Converters with an (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Integrated High-Side Switch Package Information 23 ...

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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Package Information (continued) ...