Datasheet ADP2387 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 20 V, 6 A, Synchronous, Step-Down DC-to-DC Regulator |
| 页数 / 页 | 25 / 6 — ADP2387. Data Sheet. ABSOLUTE MAXIMUM RATINGS Table 2. THERMAL … |
| 修订版 | C |
| 文件格式/大小 | PDF / 577 Kb |
| 文件语言 | 英语 |
ADP2387. Data Sheet. ABSOLUTE MAXIMUM RATINGS Table 2. THERMAL RESISTANCE. Parameter Rating. Table 3. Thermal Resistance
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ADP2387 Data Sheet ABSOLUTE MAXIMUM RATINGS Table 2. THERMAL RESISTANCE Parameter Rating
JA is specified for the worst case conditions, that is, a device PVIN, SW, EN, PGOOD −0.3 V to +22 V soldered in the circuit board (4-layer, JEDEC standard board) SW 10 ns Transient −2.5 V to +22 V for surface mount packages. SW 100 ns Transient −1 V to +22 V
Table 3. Thermal Resistance
BST VSW + 6 V FB, SS, COMP, ILIM, RT −0.3 V to +6 V
Package Type
JA
JC Unit
VREG −0.3 V to +12 V 24-Lead LFCSP 42.6 6.8 (EP, SW) °C/W PGND to GND −0.3 V to +0.3 V 2.3 (EP, GND) °C/W Operating Junction Temperature Range −40°C to +125°C Maximum Junction Temperature 150°C
ESD CAUTION
Storage Temperature Range −65°C to +150°C Soldering Conditions JEDEC J-STD-020 Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. C | Page 6 of 25 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL SCHEME PRECISION ENABLE/SHUTDOWN INTERNAL REGULATOR (VREG) BOOTSTRAP CIRCUITRY OSCILLATOR SOFT START POWER GOOD PEAK CURRENT-LIMIT AND SHORT-CIRCUIT PROTECTION OVERVOLTAGE PROTECTION (OVP) UNDERVOLTAGE LOCKOUT (UVLO) THERMAL SHUTDOWN APPLICATIONS INFORMATION INPUT CAPACITOR SELECTION OUTPUT VOLTAGE SETTING VOLTAGE CONVERSION LIMITATIONS INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION PROGRAMMING INPUT VOLTAGE UVLO COMPENSATION DESIGN ADIsimPower DESIGN TOOL DESIGN EXAMPLE OUTPUT VOLTAGE SETTING FREQUENCY SETTING CURRENT-LIMIT THRESHOLD SETTING INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION COMPENSATION COMPONENTS SOFT START TIME PROGRAM INPUT CAPACITOR SELECTION RECOMMENDED EXTERNAL COMPONENTS CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE
JA is specified for the worst case conditions, that is, a device PVIN, SW, EN, PGOOD −0.3 V to +22 V soldered in the circuit board (4-layer, JEDEC standard board) SW 10 ns Transient −2.5 V to +22 V for surface mount packages. SW 100 ns Transient −1 V to +22 V
Table 3. Thermal Resistance
BST VSW + 6 V FB, SS, COMP, ILIM, RT −0.3 V to +6 V
Package Type
JA
JC Unit
VREG −0.3 V to +12 V 24-Lead LFCSP 42.6 6.8 (EP, SW) °C/W PGND to GND −0.3 V to +0.3 V 2.3 (EP, GND) °C/W Operating Junction Temperature Range −40°C to +125°C Maximum Junction Temperature 150°C
ESD CAUTION
Storage Temperature Range −65°C to +150°C Soldering Conditions JEDEC J-STD-020 Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. C | Page 6 of 25 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL SCHEME PRECISION ENABLE/SHUTDOWN INTERNAL REGULATOR (VREG) BOOTSTRAP CIRCUITRY OSCILLATOR SOFT START POWER GOOD PEAK CURRENT-LIMIT AND SHORT-CIRCUIT PROTECTION OVERVOLTAGE PROTECTION (OVP) UNDERVOLTAGE LOCKOUT (UVLO) THERMAL SHUTDOWN APPLICATIONS INFORMATION INPUT CAPACITOR SELECTION OUTPUT VOLTAGE SETTING VOLTAGE CONVERSION LIMITATIONS INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION PROGRAMMING INPUT VOLTAGE UVLO COMPENSATION DESIGN ADIsimPower DESIGN TOOL DESIGN EXAMPLE OUTPUT VOLTAGE SETTING FREQUENCY SETTING CURRENT-LIMIT THRESHOLD SETTING INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION COMPENSATION COMPONENTS SOFT START TIME PROGRAM INPUT CAPACITOR SELECTION RECOMMENDED EXTERNAL COMPONENTS CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE