Datasheet ADP1611 (Analog Devices) - 2

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ADP1611 TABLE OF CONTENTS
Specifications... 3 Choosing the Input and Output Capacitors ... 11 Absolute Maximum Ratings.. 4 Diode Selection... 12 ESD Caution.. 4 Loop Compensation .. 12 Pin Configuration and Function Descriptions... 5 Soft-Start Capacitor ... 13 Typical Performance Characteristics ... 6 Application Circuits ... 14 Theory of Operation .. 10 Step-Up DC-to-DC Converter with True Shutdown .. 14 Current-Mode PWM Operation .. 10 TFT LCD Bias Supply .. 14 Frequency Selection ... 10 SEPIC Power Supply .. 15 Soft Start .. 10 Layout Procedure ... 16 On/Off Control... 10 Outline Dimensions ... 18 Setting the Output Voltage .. 10 Ordering Guide .. 18
REVISION HISTORY 2/05—Revision 0: Initial Version
Rev. 0 | Page 2 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CURRENT-MODE PWM OPERATION FREQUENCY SELECTION SOFT START ON/OFF CONTROL SETTING THE OUTPUT VOLTAGE INDUCTOR SELECTION CHOOSING THE INPUT AND OUTPUT CAPACITORS DIODE SELECTION LOOP COMPENSATION SOFT-START CAPACITOR APPLICATION CIRCUITS STEP-UP DC-TO-DC CONVERTER WITH TRUE SHUTDOWN TFT LCD BIAS SUPPLY SEPIC POWER SUPPLY LAYOUT PROCEDURE OUTLINE DIMENSIONS ORDERING GUIDE