MAX1718EEI Maxim Integrated Products, MAX1718EEI Datasheet
MAX1718EEI
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MAX1718EEI Summary of contents
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... Drives Large Synchronous-Rectifier FETs ♦ 700µA (typ) I ♦ 2µA (typ) Shutdown Supply Current ♦ 2V ±1% Reference Output ♦ VGATE Blanking During Transition ♦ Small 28-Pin QSOP Package PART MAX1718EEI MAX1718BEEI+ MAX1718BEEI MAX1718BEEIB+ +Denotes lead-free package. SHUTDOWN Applications DUAL MODE VID ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ABSOLUTE MAXIMUM RATINGS V+ to GND ..............................................................-0.3V to +30V GND .....................................................-0. D0–D4, ZMODE, VGATE, OVP, SUS, to GND .........-0.3V to ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V PARAMETER Reference Load Regulation I REF REF Sink Current REF in regulation FAULT ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V PARAMETER DL Gate-Driver Source Current DL forced to 2.5V DL rising Dead Time ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V PARAMETER TON = V Minimum Off-Time (Note 1) TON = GND (1000kHz) BIAS AND ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 15V PARAMETER LOGIC AND I/O D0–D4, ZMODE, SUS, OVP Logic Input High Voltage D0–D4, ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) (Circuit of Figure 12V NO-LOAD SUPPLY CURRENT vs. INPUT VOLTAGE ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) (Circuit of Figure 12V DYNAMIC OUTPUT VOLTAGE TRANSITION (PWM MODE) MAX1718 toc12 40µs/div V = ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) (Circuit of Figure 12V OUTPUT VOLTAGE DISTRIBUTION -0.48 -0.24 OUTPUT VOLTAGE ERROR (%) PIN ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) PIN NAME On-Time Selection Control Input. This is a four-level input that sets the K factor (Table 2) to determine DH on-time. Connect TON to the following pins ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) C7 1µF SHUTDOWN 100kΩ R3 100kΩ MUX CONTROL REF SUSPEND INPUT DECODER R4 62kΩ C6 47pF C5 0.22µF R18 24.9kΩ R19 27.4kΩ Figure 1. Standard ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) Table 1. Component Suppliers MANUFACTURER USA PHONE Central Semiconductor 516-435-1110 Dale-Vishay 402-564-3131 Fairchild 408-721-2181 International Rectifier 310-322-3331 Kemet 408-986-0424 Motorola 602-303-5454 Nihon 847-843-7500 Panasonic 714-373-7939 Taiyo Yuden 408-573-4150 ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) V BATT 2V TO 28V V+ TON FROM ON-TIME COMPUTE D/A TON TON Q TRIG 1-SHOT SKP/SDN REF 70kΩ NEG POS REF REF ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) Table 2. Approximate K-Factor Errors TON TON FREQUENCY SETTING (kHZ) V 200 CC OPEN 300 REF 550 GND 1000 external high-side MOSFET. Resistive losses, including the inductor, both ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) REF MAX1718 POS NEG Figure 3. Resistive Divider from REF DH MAX1718 DL POS NEG Figure 4. Resistive Divider from OUTPUT DH MAX1718 DL POS NEG MUX MAX4524 ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ∆ BATT OUT = ∆ ON-TIME TIME Figure 6. Pulse-Skipping/Discontinuous Crossover Point (Figure 7). The actual peak current is greater than the current-limit ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) +5V 5Ω TYP BST DH LX MAX1718 Figure 8. Reducing the Switching-Node Rise Time (UVLO) circuitry inhibits switching, forces VGATE low, and forces the DL gate driver high ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) Table 3. Output Voltage vs. DAC Codes ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) On the rising edge of ZMODE, during power-up with ZMODE high or on the falling edge of SUS when ZMODE is high, the impedances at D0–D4 are sampled ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) 3.0V TO 5.5V Figure 10. Internal Mux Impedance-Mode Data Test and Latch low during Impedance mode must appear to be low impedance, at least for the 4µs sampling ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) 2.7V TO 5.5V 1kΩ 1kΩ 100kΩ Figure 12. Using the Internal Mux with Both VID Codes Resistor Programmed interval of 2 ✕ R ✕ 4.7nF is recommended PULLUP ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) *OPTIONAL 4.7nF 1MΩ CPU CPU VID = 01100 → 1.15V (ZMODE LOW) *TO REDUCE QUIESCENT CURRENT, 1kΩ PULLUP RESISTORS CAN BE REPLACED BY 1MΩ RESISTORS WITH 4.7nF CAPACATORS ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) 3. CPU 3.3V MAX1609 ADD0 ADDRESS ADD1 DATA 1 SMBUS 1 CLOCK Figure 14. Using the ZMODE ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) Table 6. Operating Mode Truth Table SKP/SDN DL GND High 12V to 15V Switching Open Switching V Switching Open High CC NO FAULT Test Mode ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) step. The amount of output sag is also a function of the maximum duty factor, which can be calculated from the on-time and minimum off-time: 2 − ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) age rating rather than by capacitance value (this is true of tantalums, OS-CONs, and other electrolytics). When using low-capacity filter capacitors such as ceramic or polymer types, capacitor ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) power-dissipation limits often limits how small the MOS- FET can be. Switching losses in the high-side MOSFET can become an insidious heat problem when maximum AC adapter voltages ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) application circuit (Figure 1) voltage positioning is accomplished using a droop resistor (R8), which can dissipate over 1W. Although the power savings in the processor is much greater ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) iting occurs. The op amp causes current limiting by lowering the voltage on the ILIM pin. This lowers the current-limit threshold of the IC’s internal current-limit circuit, which ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) Forced-PWM Mode section). However, processor sus- pend currents can be low enough that Skip mode oper- ation provides a real benefit. In the circuit of Figure 17, SKP/SDN ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) 120kΩ 80kΩ TO SUS 30kΩ 0.01µF SHUTDOWN 3.3V SUS ~ ~ 200µs 200µs SKP/SDN Figure 17. Using Skip Mode During Suspend (SKP/ SDN = V and ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) capacitors, the TIME resistor, as well as any other resistor-dividers. 3) Keep the power traces and load connections short. This is essential for high efficiency. The use of ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) ALL ANALOG GROUNDS CONNECT TO LOCAL PLANE ONLY MAX1718 REF V DD GND CONNECT LOCAL ANALOG GROUND PLANE DIRECTLY TO GND FROM THE SIDE OPPOSITE ...
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Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning (IMVP - II) Pin Configuration TOP VIEW V+ 1 SKP/SDN 2 TIME NEG 5 MAX1718 TON 10 REF 11 ...
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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. 35 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc ...