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MAX1763 Fiches technique(PDF) 5 Page - Maxim Integrated Products |
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MAX1763 Fiches technique(HTML) 5 Page - Maxim Integrated Products |
5 / 16 page 1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter _______________________________________________________________________________________ 5 ELECTRICAL CHARACTERISTICS (continued) (CLK/SEL = ONB = FB = PGND = GND, ISET = REF, OUT = POUT, VONA = VAIN = VOUT = 3.6V, TA = -40°C to +85°C, unless other- wise noted.) (Note 8) PARAMETER CONDITIONS MIN MAX UNITS LOGIC INPUTS Gain-Block Enable Threshold (VOUT - VAIN) (Note 6) 1.4 V Gain-Block Disable Threshold (VOUT - VAIN) (Note 6) 0.2 V CLK/SEL Input Low Level 2.5 V ≤ VOUT ≤ 5.5V (0.2) VOUT V CLK/SEL Input High Level 2.5 V ≤ VOUT ≤ 5.5V (0.8) VOUT V 1.1 V ≤ VOUT ≤ 1.8V 0.2 ONA and ONB Input Low Level (Note 7) 1.8 V ≤ VOUT ≤ 5.5V 0.4 V 1.1 V ≤ VOUT ≤ 1.8V VOUT - 0.2V ONA and ONB Input High Level (Note 7) 1.8V ≤ VOUT ≤ 5.5V 1.6 V Input Leakage Current CLK/SEL, ONA, ONB 1µA Note 1: Operating voltage. Because the regulator is bootstrapped to the output, once started, the MAX1763 will operate down to 0.7V input. Note 2: Startup is tested with the circuit of Figure 2. Note 3: Defines low-noise mode maximum step-up ratio. Note 4: The regulator is in startup mode until this voltage is reached. Do not apply full load current until the output exceeds 2.3V. Note 5: Supply current from the 3.3V output is measured between the 3.3V output and the OUT pin. This current correlates directly to the actual battery-supply current, but is reduced in value according to the step-up ratio and efficiency. The gain block is disabled. Note 6: Connect AIN to OUT to disable gain block. Note 7: ONA and ONB have hysteresis of approximately 0.15 ✕ VOUT. Note 8: Specifications to -40°C are guaranteed by design and not production tested. |
Numéro de pièce similaire - MAX1763 |
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Description similaire - MAX1763 |
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