Datasheet ADP1752, ADP1753 (Analog Devices) - 8

ADP1752/ADP1753 Data Sheet 100 4500 1.9V LOAD = 10mA 90 2.0V 4000 LOAD = 100mA 2.4V LOAD = 400mA 80 2.6V 3500 LOAD = 800mA 3.0V (µA) 70 3.6V NT (µA) 3000 60 NT 2500 50 N CURRE 2000 W 40 DO UND CURRE 1500 30 RO G SHUT 20 1000 10 500 0 0 –40 –15 10 35 60 85
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2.3 2.4 2.5 2.6 2.7 2.8
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TEMPERATURE (°C) INPUT VOLTAGE (V)
07718- 07718- Figure 11. Shutdown Current vs. Temperature at Various Input Voltages Figure 14. Ground Current vs. Input Voltage (in Dropout), VOUT = 2.5 V
0.08 T 0.07 ILOAD 0.06 (V) GE 0.05 1 1mA TO 800mA LOAD STEP, 2.5A/µs, 500mA/DIV OLTA 0.04 T V 1.6V V OU OUT 0.03 2 OP 50mV/DIV R D 0.02 2.5V 0.01 VIN = 3.6V VOUT = 1.5V 01 10 100 1k
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CH1 500mA Ω BW CH2 50mV BW M10µs A CH1 380mA
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LOAD CURRENT (mA) T 10.20%
07718- 07718- Figure 12. Dropout Voltage vs. Load Current, VOUT = 1.6 V, 2.5 V Figure 15. Load Transient Response, CIN = 4.7 µF, COUT = 4.7 µF
2.60 T 2.55 ILOAD 2.50 (V) GE 2.45 1 1mA TO 800mA LOAD STEP, 2.5A/µs, 500mA/DIV OLTA 2.40 T V U 2.35 TP 2 VOUT OU 2.30 20mV/DIV LOAD = 10mA LOAD = 100mA 2.25 LOAD = 400mA VIN = 3.6V LOAD = 800mA VOUT = 1.5V 2.202.3 2.4 2.5 2.6 2.7 2.8
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CH1 500mA Ω BW CH2 20mV BW M10µs A CH1 530mA
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INPUT VOLTAGE (V)
07718-
T 10.20%
07718- Figure 13. Output Voltage vs. Input Voltage (in Dropout), VOUT = 2.5 V Figure 16. Load Transient Response, CIN = 22 µF, COUT = 22 µF Rev. H | Page 8 of 20 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SOFT START FUNCTION (ADP1752/ADP1753) ADJUSTABLE OUTPUT VOLTAGE (ADP1753) ENABLE FEATURE POWER-GOOD FEATURE REVERSE CURRENT PROTECTION FEATURE APPLICATIONS INFORMATION CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties UNDERVOLTAGE LOCKOUT CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE