MAX1678EUA-T Maxim Integrated Products, MAX1678EUA-T Datasheet
MAX1678EUA-T
Specifications of MAX1678EUA-T
Related parts for MAX1678EUA-T
MAX1678EUA-T Summary of contents
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... Dual Mode™ Output: Fixed 3.3V 45mA Output Current at 3.3V for 1-Cell Input 90mA Output Current at 3.3V for 2-Cell Input Inductor-Damping Switch Suppresses EMI Applications PART MAX1678EUA Note: To order these devices shipped in tape-and-reel, add the part number. TOP VIEW OUTPUT 3.3V ...
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Low-Noise, High-Efficiency, Step-Up DC-DC Converter ABSOLUTE MAXIMUM RATINGS BATT, OUT,LX, SHDN to GND ..............................-0.3V to +6.0V OUT, LX Current.......................................................................1A FB, PFI, PFO to GND ................................-0. Reverse Battery Current (T = +25°C) (Note 1) ...............220mA A ...
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High-Efficiency, Step-Up DC-DC Converter ELECTRICAL CHARACTERISTICS ( 1.3V GND, T SHDN BATT LOAD PARAMETER SYMBOL Maximum Operating Input V Voltage Output Voltage (Fixed Mode) Output Voltage Range (Adjustable Mode) FB Set Voltage ...
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Low-Noise, High-Efficiency, Step-Up DC-DC Converter (Circuit of Figure 7 (Fixed Mode, 3.3V) or Figure 8 (Adjustable Mode), T EFFICIENCY vs. LOAD CURRENT (V = 2.4V OUT 100 ...
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High-Efficiency, Step-Up DC-DC Converter (Circuit of Figure 7 (Fixed Mode, 3.3V) or Figure 8 (Adjustable Mode), T EFFICIENCY WITH DIFFERENT INDUCTORS 1.2V BATT 3.3V OUT I = 20mA LOAD ...
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Low-Noise, High-Efficiency, Step-Up DC-DC Converter (Circuit of Figure 7 (Fixed Mode, 3.3V) or Figure 8 (Adjustable Mode), T SWITCHING WAVEFORM s/div V = 3.3V 1.2V 10mA, C OUT BATT ...
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High-Efficiency, Step-Up DC-DC Converter BATT 0.5REF PFI PFO RFRDY REF 1.23V REF 0.5REF SHDN Figure 1. Functional Diagram Detailed Description The MAX1678 consists of an internal 1Ω, N-channel MOSFET power switch, a built-in synchronous rectifier that acts as the catch ...
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Low-Noise, High-Efficiency, Step-Up DC-DC Converter Operating Principle The MAX1678 employs a proprietary constant-peak- current control scheme that combines the ultra-low qui- escent current of traditional pulse-skipping PFM converters with high-load efficiency. When the error comparator detects that ...
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High-Efficiency, Step-Up DC-DC Converter Pulling the SHDN pin low places the MAX1678 in shut- down mode (I = 2µA typical). In shutdown, the SHDN internal switching MOSFET turns off, PFO goes high impedance, and the synchronous rectifier turns off to ...
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Low-Noise, High-Efficiency, Step-Up DC-DC Converter Applications Information Output Voltage Selection The MAX1678 operates with a fixed 3.3V or adjustable output. To select fixed-voltage operation, connect FB to GND (Figure 7). For an adjustable output between 2V and ...
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High-Efficiency, Step-Up DC-DC Converter Capacitor Selection Choose input and output capacitors to service input and output peak currents with acceptable voltage rip- ple. Capacitor ESR is a major contributor to output rip- ple (usually more than 60%). A 10µF, ceramic ...
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Low-Noise, High-Efficiency, Step-Up DC-DC Converter ___________________Chip Information TRANSISTOR COUNT: 840 12 ______________________________________________________________________________________ Package Information ...