MAX1639ESE Maxim Integrated Products, MAX1639ESE Datasheet
MAX1639ESE
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MAX1639ESE Summary of contents
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... GTL Bus Termination _______________Ordering Information PART TEMP RANGE MAX1639ESE 40°C to +85°C MAX1639ESE+ 40°C to +85°C +Denotes lead-free packages. Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. ...
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... Narrow SO (derate 8.70mW/°C above +70°C) ....696mW θ + 0.3V) SO ...........................................................................65°C 0.3V) Operating Temperature Range DD + 0.3V) MAX1639ESE....................................................-40°C to +85°C CC Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10s) .................................+300°C = 0°C to +85°C, unless otherwise noted.) A CONDITIONS T = +25°C to +85° 0° ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power ELECTRICAL CHARACTERISTICS (continued +5V, PGND = AGND = 0V, FREQ = REF PARAMETER FREQ Input Current CSH, CSL Input Current CSH = CSL = ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power __________________________________________Typical Operating Characteristics (T = +25°C, using the MAX1639 evaluation kit, unless otherwise noted.) A LOAD-TRANSIENT RESPONSE (V = 2.5V) OUT A B 10µs/div 2.5V, LOAD ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power ______________________________________________________________Pin Description PIN NAME Boost-Capacitor Bypass for High-Side MOSFET Gate Drive. Connect a 0.1µF capacitor and low-leak- 1 BST age Schottky diode as a bootstrapped charge-pump circuit to derive a 5V ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power _______Standard Application Circuits The predesigned MAX1639 circuit shown in Figure 1 meets a wide range of applications with output currents up to 35A. Use Table 1 to select components appropri- ate ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power Table 1. Component List for Standard Applications COMPONENT C1 330µF, Sanyo OS-CON 6SA330M C2 (x2) 560µF, Sanyo OS-CON 4SP560M D1 (optional) D2 Central Semiconductor CMPSH ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power REF1 AGND MAX1639 V CC OSCILLATOR FREQ CC1 40k CC2 10k gm REF 24R FB Figure 2. Simplified Block Diagram 8 _______________________________________________________________________________________ REF REF2 SLOPE COMPENSATION RESET REF SET WINDOW REF2 ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power BST High-Side Gate-Driver Supply and MOSFET Drivers Gate-drive voltage for the high-side N-channel switch is generated using a flying-capacitor boost circuit (Figure 3). The capacitor is alternately charged from the +5V ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power Overvoltage Protection When the output exceeds the set voltage, the synchro- nous rectifier output (DL) is driven high (and DH is dri- ven low). This causes the inductor to quickly dissipate ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power ( − OUT IN MAX ( ) = MAX ( ) OSC where f is the switching frequency, between 300kHz and 1MHz; ...
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High-Speed Step-Down Controller with Synchronous Rectification for CPU Power OUT = CC 1 Ω Resistor RC1 sets a zero that can be used to compen- sate for the sampling pole generated by the switching frequency. ...
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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. 13 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2005 Maxim Integrated Products Place the high-power components (C1, R1, N1, D1, N2, L1, and C2 in Figure 1) as close together as possible ...