MAX1831EEE Maxim Integrated Products, MAX1831EEE Datasheet
MAX1831EEE
Specifications of MAX1831EEE
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MAX1831EEE Summary of contents
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... Programmable Constant-Off-Time Operation 1MHz Switching Frequency o Idle Mode Operation at Light Loads o Thermal Shutdown o Internal Digital Soft-Start Inrush Current Limiting o 100% Duty Cycle During Low-Dropout Operation o Output Short-Circuit Protection o 16-Pin QSOP Package PART MAX1830EEE Applications MAX1831EEE INPUT +3V TO +5.5V Features = +4. +3V IN Adjustable (Both Devices) IN Ordering Information TEMP ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches ABSOLUTE MAXIMUM RATINGS , IN, SHDN to GND ............................................-0. .............................................................................±0.3V CC GND to PGND.....................................................................±0.3V COMP, FB, TOFF, FBSEL, REF to GND .....-0.3V ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches ELECTRICAL CHARACTERISTICS (continued +3.3V, FBSEL = GND PARAMETER SYMBOL Shutdown Supply Current Thermal Shutdown Threshold T Undervoltage Lockout Threshold V FB ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches ELECTRICAL CHARACTERISTICS (continued +3.3V, FBSEL = GND -40°C to +85°C, unless otherwise noted.) (Note PARAMETER SYMBOL Adjustable Output Voltage ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches (Circuit of Figure +25°C, unless otherwise noted.) A NORMALIZED OUTPUT ERROR vs. OUTPUT CURRENT 0.10 0.05 0 -0.05 -0. 3. 5.0V IN ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches PIN NAME Connection for the drains of the PMOS power switch and NMOS synchronous-rectifier switch 14 Connect the inductor from this node to the output ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches INPUT C IN 22µF, 10Ω 6.3V X5R 2.2µF 470pF R TOFF Figure 1. Typical Circuit COMP REF 470pF 10Ω 2.2µF SHDN REF 1µF NOTE: HEAVY ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches Table 1. Recommended Component Values (I V (V) V (V) IN OUT 5 3.3 5 2.5 5 1.8 5 1.5 5 1.1 3.3 2.5 3.3 1.8 3.3 1.5 3.3 ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches Table 2. Output Voltage Programming PIN OUTPUT VOLTAGE (V) FBSEL FB V Output voltage CC Unconnected Output voltage REF Output voltage GND Resistive divider LX MAX1830 MAX1831 FB R1 ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches voltage and ground (Figure 4). Regulation is main- tained for adjustable output voltages when V Use 30kΩ for R1 given by the equation: V OUT = ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches MAX1830/MAX1831 MAXIMUM RECOMMENDED CONTINUOUS OUTPUT CURRENT vs. TEMPERATURE 3.50 3.40 3.30 3.20 3.10 3.00 2.90 2.80 2.70 2.60 2.50 2 0.7IN OF 1-OZ COPPER 2. ...
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Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches The following points are in order of decreasing impor- tance: 1) Minimize switched-current and high-current ground loops. Connect the input capacitor’s ground, the out- put capacitor’s ground, and PGND. ...
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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 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...