MAX1692EUB Maxim Integrated Products, MAX1692EUB Datasheet
MAX1692EUB
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MAX1692EUB Summary of contents
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... Guaranteed Output Current 95% Efficiency No Schottky Diode Required 85µA Quiescent Current 100% Duty Cycle in Dropout 750kHz Fixed-Frequency PWM Operation Synchronizable Switching Frequency Accurate Reference: 1.25V (±1.2%) Small 10-Pin µMAX Package PART MAX1692EUB with the input IN TOP VIEW Applications IN LX SHDN LIM MAX1692 ...
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Low-Noise, 5.5V-Input, PWM Step-Down Regulator ABSOLUTE MAXIMUM RATINGS IN, BP, SHDN, SYNC/PWM, LIM to GND ................ -0. .................................................................-0.3V to +0.3V PGND to GND ...................................................... -0.3V to +0. PGND................................................. -0. FB, REF ...
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ELECTRICAL CHARACTERISTICS (continued +3.6V, SYNC/PWM = GND LIM values are +25°C.) A PARAMETER SYMBOL Reference Load Regulation Undervoltage Lockout Threshold UVLO Logic Input High V Logic Input Low Logic Input Current SYNC/PWM Minimum ...
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Low-Noise, 5.5V-Input, PWM Step-Down Regulator (SYNC/PWM = GND, circuit of Figure Sumida CD43-100, T DROPOUT VOLTAGE vs. LOAD CURRENT 600 500 V = 2.5V OUT 400 300 V = 3.3V OUT 200 100 0 0 150 300 ...
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GND +25°C, unless otherwise noted.) A OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE 800 T = +85°C A 750 T = +25°C A 700 T = -40°C A 650 I = 200mA OUT 600 2.7 3.1 3.5 3.9 ...
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Low-Noise, 5.5V-Input, PWM Step-Down Regulator PIN NAME 1 IN Supply Voltage Input. Input range from +2.7V to +5.5V. Bypass with a 10µF capacitor. Supply Bypass Pin. Internally connected to IN. Bypass with a 0.1µF capacitor. Do not connect to an ...
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Detailed Description The MAX1692 step-down, pulse-width-modulated (PWM), DC-DC converter has an adjustable output range from 1.25V to the input voltage. An internal syn- chronous rectifier improves efficiency and eliminates an external Schottky diode. Fixed-frequency operation enables easy post-filtering, thereby providing ...
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Low-Noise, 5.5V-Input, PWM Step-Down Regulator amounts of reverse current to flow from the output dur- ing light loads. This allows regulation with a constant- switching frequency and eliminates minimum load requirements. The NEGLIM comparator threshold is 50mA if V < ...
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Capacitor Selection Choose input- and output-filter capacitors to service inductor currents with acceptable voltage ripple. The input-filter capacitor also reduces peak currents and noise at the voltage source. In addition, connect a low- ESR bulk capacitor (>10µF suggested) to the ...
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Low-Noise, 5.5V-Input, PWM Step-Down Regulator Bypass Considerations Bypass IN and OUT to PGND with 10µF and 47µF, respectively. Bypass BP and REF to GND with 0.1µF and 0.22µF, respectively. Locate the bypass capacitors as close as possible to their respective ...
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Chip Information TRANSISTOR COUNT: 1462 ______________________________________________________________________________________ Low-Noise, 5.5V-Input, PWM Step-Down Regulator Package Information 11 ...
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... Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 12 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1998 Maxim Integrated Products © ...