MAX868EUB Maxim Integrated Products, MAX868EUB Datasheet
MAX868EUB
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MAX868EUB Summary of contents
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... Regulated Negative Output Voltage ( Ultra-Small, 10-Pin µMAX Package On-Demand Switching 450kHz 30µA Quiescent Supply Current Requires Only Four Small External Capacitors 1.8V to 5.5V Input Voltage Range 0.1µA Logic-Controlled Shutdown Up to 30mA Output Current PART MAX868C/D MAX868EUB * Dice are tested 1. SHDN 8 ...
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... Short-Circuit Duration.................................................Continuous Continuous Power Dissipation (T - 12V 0.3V) 10-pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW IN Operating Temperature Range + 0.3V) to -6V MAX868EUB ....................................................-40°C to +85°C IN Storage Temperature Range .............................-65°C to +160°C + 0.3V) Lead Temperature (soldering, 10sec) .............................+300° 1µ 10µ 0°C to +85°C, unless otherwise noted. Typical values ...
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ELECTRICAL CHARACTERISTICS (V = +3.3V 0.22µ 1µ PARAMETER SYMBOL Supply-Voltage Range V IN Supply Current I IN Shutdown Current I IN,SHDN Oscillator Frequency f OSC Open-Loop Output R OUT Resistance FB ...
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Regulated, Adjustable -2x Inverting Charge Pump ____________________________Typical Operating Characteristics (continued) (Circuit of Figure +25°C, unless otherwise noted.) A EFFICIENCY vs. LOAD CURRENT ( -7.5V 60 OUT -5V ...
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PIN NAME 1 GND Analog Ground 2 OUT Charge-Pump Output 3 C1- Negative Terminal of Flying Capacitor C1 4 PGND Power Ground 5 C1+ Positive Terminal of Flying Capacitor C1 6 C2- Negative Terminal of Flying Capacitor ...
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Regulated, Adjustable -2x Inverting Charge Pump (a) C2+ IN C2- C1+ C1- (b) C1+ C2+ IN GND C2- C1- Figure charge phase, the left-hand switches are closed and the right-hand switches are open, charging the fly- ing ...
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C V REF OPTIONAL CONNECTION MAX868 IN OUT V IN Figure 4. Setting the Output Voltage Using Two External Resistors Capacitor Selection Choosing the Flying Capacitors Proper choice of the flying capacitors is dependent pri- marily upon ...
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Regulated, Adjustable -2x Inverting Charge Pump __________Applications Information Low-Output-Voltage Operation Since the difference between the voltage of the series- connected flying capacitors and the output voltage must be dissipated within the device, the MAX868’s efficiency is very similar to that ...
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COMPONENT PLACEMENT GUIDE 0.5" Figure 7a. Suggested Layout for Circuit of Figure 5 _______________________________________________________________________________________ Regulated, Adjustable -2x Inverting Charge Pump PC BOARD LAYOUT 0.5" Figure 7b. Suggested Layout for Circuit of Figure 5 9 ...
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Regulated, Adjustable -2x Inverting Charge Pump COMPONENT PLACEMENT GUIDE 0.5" Figure 8a. Suggested Layout for External Reference Applications 10 ______________________________________________________________________________________ PC BOARD LAYOUT 0.5" Figure 8b. Suggested Layout for External Reference Applications ...
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Regulated, Adjustable -2x Inverting Charge Pump Package Information 11 ...
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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 © 1998 Maxim Integrated Products NOTES Printed USA is a registered trademark of Maxim Integrated Products ...