Datasheet ADP3051 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 500 mA PWM Step-Down DC-DC with Synchronous Rectifier |
| Páginas / Página | 16 / 4 — ADP3051. ABSOLUTE MAXIMUM RATINGS. Table 2. Parameter Rating. ESD CAUTION |
| Formato / tamaño de archivo | PDF / 441 Kb |
| Idioma del documento | Inglés |
ADP3051. ABSOLUTE MAXIMUM RATINGS. Table 2. Parameter Rating. ESD CAUTION
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ADP3051 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating
IN, SHDN, COMP, SW, FB to GND –0.3 V to +6 V Stresses above those listed under Absolute Maximum Ratings SW to IN –6 V to +0.3 V may cause permanent damage to the device. This is a stress rat- PGND to GND –0.3 V to +0.3 V ing only; functional operation of the device at these or any Operating Ambient Temperature –40°C to +85°C other conditions above those indicated in the operational sec- Operating Junction Temperature –40°C to +125°C tions of this specification is not implied. Exposure to absolute Storage Temperature –65°C to +150°C maximum rating conditions for extended periods may affect θ device reliability. Absolute maximum ratings apply individually JA, 2-Layer (SEMI standard board) 159°C/W θ only, not in combination. Unless otherwise specified, all other JA, 4-Layer (JEDEC standard board) 116°C/W Lead Temperature Range voltages are referenced to GND. Soldering (10 sec) 300°C Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features pro- prietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electro- static discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 4 of 16 Document Outline FEATURES APPLICATIONS GENERAL DESCRIP TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PWM CONTROL MODE TRI-MODE OPERATION 100% DUTY CYCLE OPERATION SHUTDOWN UNDERVOLTAGE LOCKOUT (UVLO) SHORT-CIRCUIT PROTECTION AND RECOVERY APPLICATIONS RECOMMENDED COMPONENTS DESIGN PROCEDURE Setting the Output Voltage Inductor Selection OUTPUT CAPACITOR SELECTION Input Capacitor Selection Compensation Design CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE
IN, SHDN, COMP, SW, FB to GND –0.3 V to +6 V Stresses above those listed under Absolute Maximum Ratings SW to IN –6 V to +0.3 V may cause permanent damage to the device. This is a stress rat- PGND to GND –0.3 V to +0.3 V ing only; functional operation of the device at these or any Operating Ambient Temperature –40°C to +85°C other conditions above those indicated in the operational sec- Operating Junction Temperature –40°C to +125°C tions of this specification is not implied. Exposure to absolute Storage Temperature –65°C to +150°C maximum rating conditions for extended periods may affect θ device reliability. Absolute maximum ratings apply individually JA, 2-Layer (SEMI standard board) 159°C/W θ only, not in combination. Unless otherwise specified, all other JA, 4-Layer (JEDEC standard board) 116°C/W Lead Temperature Range voltages are referenced to GND. Soldering (10 sec) 300°C Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features pro- prietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electro- static discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 4 of 16 Document Outline FEATURES APPLICATIONS GENERAL DESCRIP TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PWM CONTROL MODE TRI-MODE OPERATION 100% DUTY CYCLE OPERATION SHUTDOWN UNDERVOLTAGE LOCKOUT (UVLO) SHORT-CIRCUIT PROTECTION AND RECOVERY APPLICATIONS RECOMMENDED COMPONENTS DESIGN PROCEDURE Setting the Output Voltage Inductor Selection OUTPUT CAPACITOR SELECTION Input Capacitor Selection Compensation Design CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE