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Datasheet ADP5300 (Analog Devices) - 8

ПроизводительAnalog Devices
Описание50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator
Страниц / Страница21 / 8 — ADP5300. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 100. NCY. ICI. …
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Формат / Размер файлаPDF / 746 Кб
Язык документаанглийский

ADP5300. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 100. NCY. ICI. VIN = 2.5V. VIN = 3.0V. VIN = 3.6V. VIN = 4.2V. VIN = 5.0V

ADP5300 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 NCY ICI VIN = 2.5V VIN = 3.0V VIN = 3.6V VIN = 4.2V VIN = 5.0V

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ADP5300 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6 V, VOUT = 2.5 V, L = 2.2 µH, CIN = COUT = 10 µF, fSW = 2 MHz, TA = 25°C, unless otherwise noted.
100 100 90 90 80 80 %) %) ( ( 70 NCY NCY E E 70 ICI 60 ICI F F F F E VIN = 2.5V E 60 VIN = 2.5V 50 VIN = 3.0V VIN = 3.0V VIN = 3.6V VIN = 3.6V VIN = 4.2V 50 VIN = 4.2V 40 VIN = 5.0V VIN = 5.0V VIN = 6.0V VIN = 6.0V 30 40 0.001 0.01 0.1 1 10
004
0.001 0.01 0.1 1 10
007
LOAD CURRENT (mA)
13366-
LOAD CURRENT (mA)
13366- Figure 4. Hysteresis Efficiency vs. Load Current, VOUT = 1.2 V Figure 7. Hysteresis Efficiency vs. Load Current, VOUT = 1.5 V
100 100 90 90 80 %) %) ( ( 80 NCY NCY E 70 E ICI ICI F F F F 70 E E 60 VIN = 2.5V VIN = 3.0V VIN = 3.0V VIN = 3.6V VIN = 3.6V 60 50 VIN = 4.2V VIN = 4.2V VIN = 5.0V VIN = 5.0V VIN = 6.0V VIN = 6.0V 40 50 0.001 0.01 0.1 1 10
005
0.001 0.01 0.1 1 10
008
LOAD CURRENT (mA)
13366-
LOAD CURRENT (mA)
13366- Figure 5. Hysteresis Efficiency vs. Load Current, VOUT = 1.8 V Figure 8. Hysteresis Efficiency vs. Load Current, VOUT = 2.5 V
100 100 90 90 80 70 %) ( 80 (%) 60 Y C NCY N E 50 IE ICI F F 70 FFIC 40 E E VIN = 2.5V 30 VIN = 3.0V VIN = 3.6V V 60 IN = 3.6V V 20 IN = 4.2V VIN = 4.2V VIN = 5.0V 10 VIN = 5.0V VIN = 6.0V VIN = 6.0V 50 0
009
0.001 0.01 0.1 1 10
006
0 100 200 300 400 500 LOAD CURRENT (mA) LOAD CURRENT (mA)
13366- 13366- Figure 6. Hysteresis Efficiency vs. Load Current, VOUT = 3.3 V Figure 9. PWM Efficiency vs. Load Current, VOUT = 1.2 V Rev. A | Page 8 of 21 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY DETAILED FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATIONAL MODES PWM Mode Hysteresis Mode Mode Selection OSILLATOR AND SYNCHRONIZATION ADJUSTABLE AND FIXED OUTPUT VOLTAGES UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE CURRENT LIMIT SHORT-CIRCUIT PROTECTION SOFT START STARTUP WITH PRECHARGED OUTPUT 100% DUTY OPERATION ACTIVE DISCHARGE VOUTOK FUNCTION STOP SWITCHING THERMAL SHUTDOWN APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION SELECTING THE INDUCTOR OUTPUT CAPACITOR INPUT CAPACITOR EFFICIENCY Power Switch Conduction Losses Inductor Losses Driver Losses Transition Losses CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE
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