Datasheet ADP1752, ADP1753 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | 800mA Low-Vin, Adjustable-Vout LDO Regulator |
| Seiten / Seite | 20 / 9 — Data Sheet. ADP1752/ADP1753. VIN. –10. –20. 3V TO 3.5V INPUT VOLTAGE … |
| Revision | H |
| Dateiformat / Größe | PDF / 1.4 Mb |
| Dokumentensprache | Englisch |
Data Sheet. ADP1752/ADP1753. VIN. –10. –20. 3V TO 3.5V INPUT VOLTAGE STEP, 2V/µs. –30. –40. dB). –50. VOUT. PSRR (. –60. 2mV/DIV. –70. –80. 800mA. 400mA
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Textversion des Dokuments
Data Sheet ADP1752/ADP1753 0 T VIN –10 –20 3V TO 3.5V INPUT VOLTAGE STEP, 2V/µs –30 –40 dB) –50 VOUT PSRR ( –60 2 2mV/DIV –70 –80 800mA 400mA V –90 OUT = 1.5V 100mA CIN = COUT = 4.7µF 10mA 1 –100 CH1 500mV B 10 100 1k 10k 100k 1M 10M
120
W CH2 2.0mV BW M10µs A CH4 800mA
117
T 9.40% FREQUENCY (Hz)
07718- 07718- Figure 17. Line Transient Response, Load Current = 800 mA Figure 20. Power Supply Rejection Ratio vs. Frequency, VOUT = 0.75 V, VIN = 1.75 V
70 0 2.5V –10 60 –20 50 –30 –40 40 1.5V dB) –50 ISE (µV rms) 30 PSRR ( –60 NO 20 –70 0.75V –80 LOAD = 800mA 10 LOAD = 400mA –90 LOAD = 100mA LOAD = 10mA 0 –100 0.0001 0.001 0.01 0.1 1
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10 100 1k 10k 100k 1M 10M
121
LOAD CURRENT (A) FREQUENCY (Hz)
07718- 07718- Figure 18. Noise vs. Load Current and Output Voltage Figure 21. Power Supply Rejection Ratio vs. Frequency, VOUT = 1.5 V, VIN = 2.5 V
10 0 –10 z) H –20 V/ –30 1 TY (µ SI –40 EN dB) L D –50 A 1.5V TR 2.5V PSRR ( –60 0.1 –70 ISE SPEC –80 LOAD = 800mA O 0.75V N LOAD = 400mA –90 LOAD = 100mA LOAD = 10mA 0.01 –100 10 100 1k 10k 100k
119
10 100 1k 10k 100k 1M 10M
122
FREQUENCY (Hz) FREQUENCY (Hz)
07718- 07718- Figure 19. Noise Spectral Density vs. Output Voltage, ILOAD = 10 mA Figure 22. Power Supply Rejection Ratio vs. Frequency, VOUT = 2.5 V, VIN = 3.5 V Rev. H | Page 9 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
120
W CH2 2.0mV BW M10µs A CH4 800mA
117
T 9.40% FREQUENCY (Hz)
07718- 07718- Figure 17. Line Transient Response, Load Current = 800 mA Figure 20. Power Supply Rejection Ratio vs. Frequency, VOUT = 0.75 V, VIN = 1.75 V
70 0 2.5V –10 60 –20 50 –30 –40 40 1.5V dB) –50 ISE (µV rms) 30 PSRR ( –60 NO 20 –70 0.75V –80 LOAD = 800mA 10 LOAD = 400mA –90 LOAD = 100mA LOAD = 10mA 0 –100 0.0001 0.001 0.01 0.1 1
118
10 100 1k 10k 100k 1M 10M
121
LOAD CURRENT (A) FREQUENCY (Hz)
07718- 07718- Figure 18. Noise vs. Load Current and Output Voltage Figure 21. Power Supply Rejection Ratio vs. Frequency, VOUT = 1.5 V, VIN = 2.5 V
10 0 –10 z) H –20 V/ –30 1 TY (µ SI –40 EN dB) L D –50 A 1.5V TR 2.5V PSRR ( –60 0.1 –70 ISE SPEC –80 LOAD = 800mA O 0.75V N LOAD = 400mA –90 LOAD = 100mA LOAD = 10mA 0.01 –100 10 100 1k 10k 100k
119
10 100 1k 10k 100k 1M 10M
122
FREQUENCY (Hz) FREQUENCY (Hz)
07718- 07718- Figure 19. Noise Spectral Density vs. Output Voltage, ILOAD = 10 mA Figure 22. Power Supply Rejection Ratio vs. Frequency, VOUT = 2.5 V, VIN = 3.5 V Rev. H | Page 9 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