Datasheet ADP7158 (Analog Devices) - 10
| Fabricante | Analog Devices |
| Descripción | 2 A, Ultralow Noise, High PSRR, Fixed Output, RF Linear Regulator |
| Páginas / Página | 22 / 10 — ADP7158. Data Sheet. 10Hz. 10Hz 100Hz. –10. 100Hz. 1kHz. 1kHz 10kHz. –20. … |
| Revisión | C |
| Formato / tamaño de archivo | PDF / 735 Kb |
| Idioma del documento | Inglés |
ADP7158. Data Sheet. 10Hz. 10Hz 100Hz. –10. 100Hz. 1kHz. 1kHz 10kHz. –20. 10kHz. 100kHz. 1MHz. –30. 10MHz. –40. –50. RR (. –60. –70. –80. –90. –100. 0.5. 0.6. 0.7. 0.8
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ADP7158 Data Sheet 0 0 10Hz 10Hz 100Hz –10 100Hz –10 1kHz 1kHz 10kHz –20 10kHz –20 100kHz 100kHz 1MHz 1MHz –30 –30 10MHz 10MHz –40 –40 B) B) d d –50 –50 RR ( RR ( S S P –60 P –60 –70 –70 –80 –80 –90
023
–90
026
–100
12896-
–100
12896-
0.5 0.6 0.7 0.8 0.9 0.5 0.6 0.7 0.8 0.9 HEADROOM VOLTAGE (V) HEADROOM VOLTAGE (V)
Figure 23. PSRR vs. Headroom Voltage at Various Frequencies, Figure 26. PSRR vs. Headroom Voltage at Various Frequencies, VOUT = 3.3 V, 2 A Load VOUT = 1.8 V, 2 A Load
0 0 I –10 LOAD = 10mA –10 ILOAD = 100mA I CBYP = 1µF –20 LOAD = 600mA –20 I C LOAD = 1200mA BYP = 10µF I CBYP = 100µF –30 LOAD = 2000mA –30 CBYP = 1000µF –40 –40 B) B) d d –50 –50 RR ( RR ( S S P –60 P –60 –70 –70 –80 –80 –90
024
–90
027
–100
12896-
–100
12896-
1 10 100 1k 10k 100k 1M 10M 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz)
Figure 24. PSRR vs. Frequency at Various Loads, VOUT = 1.8 V, VIN = 2.6 V Figure 27. PSRR vs. Frequency at Various CBYP Values, VOUT = 3.3 V, VIN = 4.0 V, 2 A Load
0 2.0 –10 1.8 10Hz TO 100kHz –20 1.6 900mV –30 800mV 1.4 rms) 700mV V –40 µ 1.2 B) 600mV ( d 500mV E –50 IS 1.0 RR ( 100Hz TO 100kHz S NO P –60 0.8 UT P –70 UT 0.6 O –80 0.4 –90
025
0.2
028
–100
12896-
0
12896-
1 10 100 1k 10k 100k 1M 10M 10m 100m 1 10 FREQUENCY (Hz) LOAD CURRENT (A)
Figure 25. PSRR vs. Frequency at Various Headroom Voltages, Figure 28. RMS Output Noise vs. Load Current VOUT = 1.8 V, 2 A Load Rev. C | Page 10 of 22 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITORS, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION ADIsimPower DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input and VREG Capacitor REF Capacitor BYP Capacitor Capacitor Properties UVLO PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT LIMIT AND THERMAL SHUTDOWN THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE
023
–90
026
–100
12896-
–100
12896-
0.5 0.6 0.7 0.8 0.9 0.5 0.6 0.7 0.8 0.9 HEADROOM VOLTAGE (V) HEADROOM VOLTAGE (V)
Figure 23. PSRR vs. Headroom Voltage at Various Frequencies, Figure 26. PSRR vs. Headroom Voltage at Various Frequencies, VOUT = 3.3 V, 2 A Load VOUT = 1.8 V, 2 A Load
0 0 I –10 LOAD = 10mA –10 ILOAD = 100mA I CBYP = 1µF –20 LOAD = 600mA –20 I C LOAD = 1200mA BYP = 10µF I CBYP = 100µF –30 LOAD = 2000mA –30 CBYP = 1000µF –40 –40 B) B) d d –50 –50 RR ( RR ( S S P –60 P –60 –70 –70 –80 –80 –90
024
–90
027
–100
12896-
–100
12896-
1 10 100 1k 10k 100k 1M 10M 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) FREQUENCY (Hz)
Figure 24. PSRR vs. Frequency at Various Loads, VOUT = 1.8 V, VIN = 2.6 V Figure 27. PSRR vs. Frequency at Various CBYP Values, VOUT = 3.3 V, VIN = 4.0 V, 2 A Load
0 2.0 –10 1.8 10Hz TO 100kHz –20 1.6 900mV –30 800mV 1.4 rms) 700mV V –40 µ 1.2 B) 600mV ( d 500mV E –50 IS 1.0 RR ( 100Hz TO 100kHz S NO P –60 0.8 UT P –70 UT 0.6 O –80 0.4 –90
025
0.2
028
–100
12896-
0
12896-
1 10 100 1k 10k 100k 1M 10M 10m 100m 1 10 FREQUENCY (Hz) LOAD CURRENT (A)
Figure 25. PSRR vs. Frequency at Various Headroom Voltages, Figure 28. RMS Output Noise vs. Load Current VOUT = 1.8 V, 2 A Load Rev. C | Page 10 of 22 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITORS, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION ADIsimPower DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input and VREG Capacitor REF Capacitor BYP Capacitor Capacitor Properties UVLO PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT LIMIT AND THERMAL SHUTDOWN THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE