MAX8752ETA+T Maxim Integrated Products, MAX8752ETA+T Datasheet
MAX8752ETA+T
Specifications of MAX8752ETA+T
Related parts for MAX8752ETA+T
MAX8752ETA+T Summary of contents
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... COMP LDO SUP SHDN IN ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ 1.8V to 5.5V Input Supply Range ♦ Built-In 14V, 2.2A, 0.2Ω n-Channel MOSFET ♦ High Efficiency (> 85%) ♦ ...
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TFT LCD Step-Up DC-DC Converter ABSOLUTE MAXIMUM RATINGS LX, SUP to GND .....................................................-0.3V to +14V SHDN, LDO to GND............................................-0.3V to +6V IN GND ...................................................-0. COMP to GND ..........................................-0. Switch Maximum Continuous RMS Current ...
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TFT LCD Step-Up DC-DC Converter ELECTRICAL CHARACTERISTICS (continued 2.5V 0°C to +85°C. Typical values are at T SHDN IN A PARAMETER n-CHANNEL MOSFET Current Limit V FB On-Resistance Leakage Current V LX Current-Sense Transresistance ...
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TFT LCD Step-Up DC-DC Converter ELECTRICAL CHARACTERISTICS (continued 2.5V -40°C to +85°C. unless otherwise noted.) SHDN IN A PARAMETER CONTROL INPUTS SHDN Input Low Voltage SHDN Input High Voltage Note 1: Step-up regulator inhibited ...
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Figure 2.5V MAIN SOFT-START (HEAVY LOAD) MAX8752 toc07 INDUCTOR CURRENT 1A/div 0A V MAIN 5V/div 0V 2ms/div SWITCHING WAVEFORMS MAX8752 toc10 LX 5V/div 0V INDUCTOR CURRENT 500mA/div I = 300mA LOAD 0A 1μs/div ...
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TFT LCD Step-Up DC-DC Converter PIN NAME Compensation Pin for Error Amplifier. Connect a series resistance and capacitor from COMP to GND. 1 COMP See the Loop Compensation section for component selection guidelines. Feedback Pin. The FB regulation voltage is ...
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TFT LCD Step-Up DC-DC Converter CLOCK LOGIC AND DRIVER CURRENT LIMIT STARTUP IN OSC SOFT- START SLOPE COMP ∑ OSCILLATOR PWM COMPARATOR SHDN LINEAR SUP REGULATOR AND MAX8752 LDO BOOTSTRAP Figure 2. MAX8752 Functional Diagram Detailed Description The MAX8752 is ...
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TFT LCD Step-Up DC-DC Converter is the current limit calculated above, η is the where I LIM regulator efficiency (85% nominal), and D is the duty cycle. The duty cycle when operating at the current limit is: − ...
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TFT LCD Step-Up DC-DC Converter The maximum output current, input voltage, output volt- age, and switching frequency determine the inductor value. Very high inductance values minimize the cur- rent ripple and therefore reduce the peak current, which decreases core losses ...
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TFT LCD Step-Up DC-DC Converter Choosing an LIR of 0.5 and estimating efficiency of 80% at this operating point: 2 ⎛ ⎞ ⎛ ⎞ − ⎜ ⎟ ⎜ ...
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TFT LCD Step-Up DC-DC Converter Loop Compensation The voltage-feedback loop needs proper compensa- tion to prevent excessive output ripple and poor effi- ciency caused by instability. This is done by connecting a resistor (R ) and capacitor (C COMP in ...
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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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products A2 ...