Datasheet ADP2384 (Analog Devices) - 10
| Fabricante | Analog Devices |
| Descripción | 20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator |
| Páginas / Página | 24 / 10 — ADP2384. Data Sheet. VOUT (AC). VIN. IOUT. CH1 100mV. M200µs. A CH4 … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 708 Kb |
| Idioma del documento | Inglés |
ADP2384. Data Sheet. VOUT (AC). VIN. IOUT. CH1 100mV. M200µs. A CH4 2.52A. CH1 20.0mV. CH2 10.0V W. M1.00ms. A CH3 12.0V. CH4 2.00A Ω. T 70.40%
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ADP2384 Data Sheet VOUT (AC) VOUT (AC) 1 1 VIN SW IOUT 3 IL 4 2
022
CH1 100mV B
025
W M200µs A CH4 2.52A CH1 20.0mV B B W CH2 10.0V W M1.00ms A CH3 12.0V CH4 2.00A Ω T 70.40%
10725-
CH3 5.00V BW T 30.00%
10725- Figure 22. Load Transient Response, 1 A to 4 A Figure 25. Line Transient Response, VIN from 8 V to 14 V, IOUT = 4 A
V VOUT OUT 1 1 SW SW 2 2 I IL L 4 4 CH1 2.00V B
023 026
W CH2 10.0V M4.00ms A CH1 1.48V CH1 2.00V B M4.00ms A CH1 1.72V W CH2 10.0V CH4 5.00A Ω T 30.40% T 78.80%
10725-
CH4 5.00A Ω
10725- Figure 23. Output Short Entry Figure 26. Output Short Recovery
5 5 4 4 A) A) ( ( 3 NT 3 NT 2 2 AD CURRE AD CURRE O O L L VOUT = 1V VOUT = 1.2V VOUT = 1.2V V 1 OUT = 1.8V 1 VOUT = 1.8V VOUT = 2.5V VOUT = 2.5V VOUT = 3.3V VOUT = 3.3V VOUT = 5V VOUT = 5V 0 0 45 55 65 75 85 95 105
024
45 55 65 75 85 95 105
027
AMBIENT TEMPERATURE (°C)
10725-
AMBIENT TEMPERATURE (°C)
10725- Figure 24. Output Current vs. Ambient Temperature at VIN = 12 V, Figure 27. Output Current vs. Ambient Temperature at VIN = 12 V, fSW = 600 kHz fSW = 300 kHz Rev. A | Page 10 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL BLOCK DIAGRAM THEORY OF OPERATION CONTROL SCHEME PRECISION ENABLE/SHUTDOWN INTERNAL REGULATOR (VREG) BOOTSTRAP CIRCUITRY OSCILLATOR SYNCHRONIZATION 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 THE INPUT VOLTAGE UVLO COMPENSATION DESIGN ADIsimPower DESIGN TOOL DESIGN EXAMPLE OUTPUT VOLTAGE SETTING (DESIGN EXAMPLE) FREQUENCY SETTING INDUCTOR SELECTION (DESIGN EXAMPLE) OUTPUT CAPACITOR SELECTION (DESIGN EXAMPLE) COMPENSATION COMPONENTS SOFT START TIME PROGRAM INPUT CAPACITOR SELECTION (DESIGN EXAMPLE) RECOMMENDED EXTERNAL COMPONENTS CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE
022
CH1 100mV B
025
W M200µs A CH4 2.52A CH1 20.0mV B B W CH2 10.0V W M1.00ms A CH3 12.0V CH4 2.00A Ω T 70.40%
10725-
CH3 5.00V BW T 30.00%
10725- Figure 22. Load Transient Response, 1 A to 4 A Figure 25. Line Transient Response, VIN from 8 V to 14 V, IOUT = 4 A
V VOUT OUT 1 1 SW SW 2 2 I IL L 4 4 CH1 2.00V B
023 026
W CH2 10.0V M4.00ms A CH1 1.48V CH1 2.00V B M4.00ms A CH1 1.72V W CH2 10.0V CH4 5.00A Ω T 30.40% T 78.80%
10725-
CH4 5.00A Ω
10725- Figure 23. Output Short Entry Figure 26. Output Short Recovery
5 5 4 4 A) A) ( ( 3 NT 3 NT 2 2 AD CURRE AD CURRE O O L L VOUT = 1V VOUT = 1.2V VOUT = 1.2V V 1 OUT = 1.8V 1 VOUT = 1.8V VOUT = 2.5V VOUT = 2.5V VOUT = 3.3V VOUT = 3.3V VOUT = 5V VOUT = 5V 0 0 45 55 65 75 85 95 105
024
45 55 65 75 85 95 105
027
AMBIENT TEMPERATURE (°C)
10725-
AMBIENT TEMPERATURE (°C)
10725- Figure 24. Output Current vs. Ambient Temperature at VIN = 12 V, Figure 27. Output Current vs. Ambient Temperature at VIN = 12 V, fSW = 600 kHz fSW = 300 kHz Rev. A | Page 10 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL BLOCK DIAGRAM THEORY OF OPERATION CONTROL SCHEME PRECISION ENABLE/SHUTDOWN INTERNAL REGULATOR (VREG) BOOTSTRAP CIRCUITRY OSCILLATOR SYNCHRONIZATION 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 THE INPUT VOLTAGE UVLO COMPENSATION DESIGN ADIsimPower DESIGN TOOL DESIGN EXAMPLE OUTPUT VOLTAGE SETTING (DESIGN EXAMPLE) FREQUENCY SETTING INDUCTOR SELECTION (DESIGN EXAMPLE) OUTPUT CAPACITOR SELECTION (DESIGN EXAMPLE) COMPENSATION COMPONENTS SOFT START TIME PROGRAM INPUT CAPACITOR SELECTION (DESIGN EXAMPLE) RECOMMENDED EXTERNAL COMPONENTS CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE