MAX8723ETE+T Maxim Integrated Products, MAX8723ETE+T Datasheet
MAX8723ETE+T
Specifications of MAX8723ETE+T
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MAX8723ETE+T Summary of contents
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... Digital System Power Supplies Point-of-Load Regulators 8/12V Industrial Equipment Pin Configuration appears at end of data sheet. ________________________________________________________________ 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. Regulator for LCD Displays ♦ 13.2V Input Supply Range ♦ ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays ABSOLUTE MAXIMUM RATINGS IN, INL to GND .......................................................-0.3V to +14V SHDN, VCC2, OUT, VL, VCC, I.C. to GND...............-0.3V to +6V FB, FSEL, REF to GND.................................-0.3V to VCC + 0.3V EXT to GND .....................................................-0.3V ...
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Low-Cost, Internal-Switch, Step-Down ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1 with 1.5MHz components of PGND = GND = 0°C to +85°C. Typical values are PARAMETER 3.3V fixed mode, OUT falling Step-Down Regulator Fault Trip ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays ELECTRICAL CHARACTERISTICS (Circuit of Figure 1 with 1.5MHz components of Table 1, unless otherwise specified. V PGND = GND = -40°C to +85°C. Typical values are PARAMETER ...
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Low-Cost, Internal-Switch, Step-Down (Circuit of Figure 1 with 1.5MHz components of unless otherwise noted.) EFFICIENCY vs. LOAD CURRENT WITHOUT EXTERNAL SYNCHRONOUS RECTIFIER SKIP MODE PWM 12V ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays (Circuit of Figure 1 with 1.5MHz components of unless otherwise noted.) INL SUPPLY CURRENT vs. TEMPERATURE PWM MODE 6 4 SKIP MODE 2 0 -40 - ...
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Low-Cost, Internal-Switch, Step-Down (Circuit of Figure 1 with 1.5MHz components of unless otherwise noted.) LOAD TRANSIENT RESPONSE (1.0MHz) 40µs/div STEP-DOWN REGULATOR SOFT-START/SHUTDOWN 1ms/div LINEAR REGULATOR VL LINE TRANSIENT RESPONSE _______________________________________________________________________________________ Regulator for LCD Displays Typical Operating Characteristics (continued) Table 1, ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays PIN NAME Step-Down Regulator Input Voltage (6V to 13.2V). Bypass IN to PGND with a minimum 4.7µF ceramic 1 IN capacitor close to the IC. Step-Down Regulator Inductor Connection. Internally connected to the ...
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Low-Cost, Internal-Switch, Step-Down VL = 5V/25mA 1µF 0.22µ 2V/50µA REF Figure 1. Typical Operating Circuit, Fixed 3.3V Output The typical operating circuit (Figure complete power supply that generates a +3.3V, 2A output from a 12V ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays REF C VCC REF SHDN VCC2 GND OSC FSEL Figure 2. Functional Diagram Detailed Description The MAX8723 is a high-efficiency switching regulator designed primarily for TFT LCD display applications. It ...
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Low-Cost, Internal-Switch, Step-Down The output voltage is regulated by changing the duty cycle of the high-side MOSFET. A bootstrap circuit that uses a 0.1µF flying capacitor between LX and BST pro- vides the supply voltage for the high-side gate driver. ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays Dual-Mode Feedback The step-down regulator of the MAX8723 supports both fixed output and adjustable output. Connect FB to GND to enable the 3.3V fixed-output voltage (Figure 1). Connect a resistive voltage-divider between OUT ...
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Low-Cost, Internal-Switch, Step-Down Power Sequence Control The linear regulator output VL is enabled when the MAX8723 input voltage rises high enough to lift VL above its undervoltage lockout (UVLO) threshold. When the reference voltage (REF) is above its UVLO thresh- ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays Input Capacitors The input filter capacitors reduce peak currents drawn from the power source and reduce noise and voltage ripple on the input caused by the regulator’s switching. They are usually selected according ...
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Low-Cost, Internal-Switch, Step-Down External MOSFET To improve efficiency, an external synchronous rectifier MOSFET can be driven by EXT. When this MOSFET is used, the Schottky diode’s current rating can be reduced or the diode can be omitted entirely. Choose a ...
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Low-Cost, Internal-Switch, Step-Down Regulator for LCD Displays Pin Configuration TOP VIEW REF 13 FSEL 14 MAX8723 SHDN 15 VCC2 THIN QFN 16 ______________________________________________________________________________________ TRANSISTOR COUNT: 4127 PROCESS: BiCMOS 9 EXT 8 7 PGND ...
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Low-Cost, Internal-Switch, Step-Down (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Regulator for LCD Displays Package Information PACKAGE OUTLINE 12,16,20,24L QFN, 4x4x0. ...
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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. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Package Information (continued) Printed USA is a registered trademark of Maxim Integrated Products ...