Datasheet ADP2230 (Analog Devices) - 2

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ADP2230 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 12 Applications ... 1 Overview ... 12 General Description ... 1 Operating Conditions .. 12 Typical Application Circuit ... 1 SYNC Pin Control Schemes.. 13 Revision History ... 2 Features Descriptions .. 13 Specifications ... 3 Applications Information .. 15 Recommended Component Specifications ... 4 Setting the Output Voltage .. 15 Absolute Maximum Ratings .. 5 Selecting the Inductor .. 15 Thermal Data .. 5 Selecting the Input and Output Capacitors .. 16 Thermal Resistance .. 5 PCB Layout Considerations .. 17 ESD Caution .. 5 Outline Dimensions ... 18 Pin Configuration and Function Descriptions ... 6 Ordering Guide .. 18 Typical Performance Characteristics ... 7
REVISION HISTORY 11/14—Rev. 0 to Rev. A
Changes to Ordering Guide .. 18
10/14—Revision 0: Initial Version
Rev. A | Page 2 of 18 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS RECOMMENDED COMPONENT SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION OVERVIEW OPERATING CONDITIONS Input Voltage Output Voltage SYNC PIN CONTROL SCHEMES PWM Mode PSM/PWM Automatic Transitioning Mode External Clock Synchronization FEATURES DESCRIPTIONS Precision Enable Quick Output Discharge Output Short-Circuit Protection Undervoltage Lockout Thermal Shutdown Soft Start Current Limit 100% Duty Cycle APPLICATIONS INFORMATION SETTING THE OUTPUT VOLTAGE SELECTING THE INDUCTOR SELECTING THE INPUT AND OUTPUT CAPACITORS Input Capacitor Output Capacitor PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE