Datasheet ADM7155 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 600 mA, Ultralow Noise, High PSRR, RF Linear Regulator |
| Páginas / Página | 24 / 1 — 600 mA, Ultralow Noise,. High PSRR, RF Linear Regulator. Data Sheet. … |
| Revisión | C |
| Formato / tamaño de archivo | PDF / 718 Kb |
| Idioma del documento | Inglés |
600 mA, Ultralow Noise,. High PSRR, RF Linear Regulator. Data Sheet. ADM7155. FEATURES. TYPICAL APPLICATION CIRCUIT
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600 mA, Ultralow Noise, High PSRR, RF Linear Regulator Data Sheet ADM7155 FEATURES TYPICAL APPLICATION CIRCUIT Input voltage range: 2.3 V to 5.5 V ADM7155 V Output voltage range: 1.2 V to 3.4 V IN = 3.5V VOUT = 3.0V VIN VOUT C C Maximum load current: 600 mA IN OUT 10µF 10µF Low noise ON REF = 1.2V EN 0.9 μV rms total integrated noise from 100 Hz to 100 kHz REF C OFF REF 1µF 1.6 μV rms total integrated noise from 10 Hz to 100 kHz R1 Noise spectral density: 1.5 nV/√Hz from 10 kHz to 1 MHz VBYP BYP REF_SENSE VOUT = 1.2V × (R1 + R2)/R2 CBYP PSRR: >90 dB from 200 Hz to 200 kHz; 57 dB at 1 MHz 1µF Dropout voltage: 120 mV typical at V R2 OUT = 3.3 V, IOUT = 600 mA VREG Initial accuracy: ±0.5% 1kΩ < R2 < 200kΩ VREG CREG GND
1 00
Accuracy over line, load, and temperature: −2.0% (minimum), 10µF +1.5% (maximum)
12325- Figure 1. Regulated 3.0 V Output from 3.5 V Input
Quiescent current, IGND = 4 mA at no load 10k Low shutdown current: 0.2 μA NOISE FLOOR Stable with a 10 μF ceramic output capacitor 1.0µF ) 3.3µF 8-lead LFCSP and 8-lead SOIC packages √Hz 1k 10µF V/ Precision enable n 33µF Y ( 100µF Supported by ADIsimPower tool IT 330µF S 100 1000µF APPLICATIONS EN D L A Regulation to noise sensitive applications: PLLs, VCOs, and R T 10 PLLs with integrated VCOs SPEC Communications and infrastructure ISE 1 Backhaul and microwave links O N 0.1 0.1 1 10 100 1k 10k 100k 1M
02 0
FREQUENCY (Hz)
325- 12 Figure 2. Noise Spectral Density for Different Values of CBYP
GENERAL DESCRIPTION
The ADM7155 is an adjustable linear regulator that operates The ADM7155 is available in 8-lead, 3 mm × 3 mm LFCSP and from 2.3 V to 5.5 V and provides up to 600 mA of load current. 8-lead SOIC packages, making it not only a very compact Output voltages from 1.2 V to 3.4 V are possible depending on solution but also providing excellent thermal performance for the model. Using an advanced proprietary architecture, it applications requiring up to 600 mA of load current in a small, low provides high power supply rejection and ultralow noise, profile footprint. achieving excellent line and load transient response with only a 10 μF ceramic output capacitor.
Table 1. Related Devices Input Output
The ADM7155 is available in four models that optimize power
Model Voltage Current Fixed/Adj1 Package
dissipation and PSRR performance as a function of input and ADM7150ACP 4.5 V to 16 V 800 mA Fixed 8-Lead LFCSP output voltage. See Table 9 and Table 10 for selection guides. ADM7150ARD 4.5 V to 16 V 800 mA Fixed 8-Lead SOIC The ADM7155 regulator typical output noise is 0.9 μV rms from ADM7151ACP 4.5 V to 16 V 800 mA Adj 8-Lead LFCSP 100 Hz to 100 kHz for fixed output voltage options and 1.5 nV/√Hz ADM7151ARD 4.5 V to 16 V 800 mA Adj 8-Lead SOIC for noise spectral density from 10 kHz to 1 MHz. ADM7154ACP 2.3 V to 5.5 V 600 mA Fixed 8-Lead LFCSP ADM7154ARD 2.3 V to 5.5 V 600 mA Fixed 8-Lead SOIC 1 Adj means adjustable.
Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY 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 UNDERVOLTAGE LOCKOUT (UVLO) PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PSRR PERFORMANCE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE
600 mA, Ultralow Noise, High PSRR, RF Linear Regulator Data Sheet ADM7155 FEATURES TYPICAL APPLICATION CIRCUIT Input voltage range: 2.3 V to 5.5 V ADM7155 V Output voltage range: 1.2 V to 3.4 V IN = 3.5V VOUT = 3.0V VIN VOUT C C Maximum load current: 600 mA IN OUT 10µF 10µF Low noise ON REF = 1.2V EN 0.9 μV rms total integrated noise from 100 Hz to 100 kHz REF C OFF REF 1µF 1.6 μV rms total integrated noise from 10 Hz to 100 kHz R1 Noise spectral density: 1.5 nV/√Hz from 10 kHz to 1 MHz VBYP BYP REF_SENSE VOUT = 1.2V × (R1 + R2)/R2 CBYP PSRR: >90 dB from 200 Hz to 200 kHz; 57 dB at 1 MHz 1µF Dropout voltage: 120 mV typical at V R2 OUT = 3.3 V, IOUT = 600 mA VREG Initial accuracy: ±0.5% 1kΩ < R2 < 200kΩ VREG CREG GND
1 00
Accuracy over line, load, and temperature: −2.0% (minimum), 10µF +1.5% (maximum)
12325- Figure 1. Regulated 3.0 V Output from 3.5 V Input
Quiescent current, IGND = 4 mA at no load 10k Low shutdown current: 0.2 μA NOISE FLOOR Stable with a 10 μF ceramic output capacitor 1.0µF ) 3.3µF 8-lead LFCSP and 8-lead SOIC packages √Hz 1k 10µF V/ Precision enable n 33µF Y ( 100µF Supported by ADIsimPower tool IT 330µF S 100 1000µF APPLICATIONS EN D L A Regulation to noise sensitive applications: PLLs, VCOs, and R T 10 PLLs with integrated VCOs SPEC Communications and infrastructure ISE 1 Backhaul and microwave links O N 0.1 0.1 1 10 100 1k 10k 100k 1M
02 0
FREQUENCY (Hz)
325- 12 Figure 2. Noise Spectral Density for Different Values of CBYP
GENERAL DESCRIPTION
The ADM7155 is an adjustable linear regulator that operates The ADM7155 is available in 8-lead, 3 mm × 3 mm LFCSP and from 2.3 V to 5.5 V and provides up to 600 mA of load current. 8-lead SOIC packages, making it not only a very compact Output voltages from 1.2 V to 3.4 V are possible depending on solution but also providing excellent thermal performance for the model. Using an advanced proprietary architecture, it applications requiring up to 600 mA of load current in a small, low provides high power supply rejection and ultralow noise, profile footprint. achieving excellent line and load transient response with only a 10 μF ceramic output capacitor.
Table 1. Related Devices Input Output
The ADM7155 is available in four models that optimize power
Model Voltage Current Fixed/Adj1 Package
dissipation and PSRR performance as a function of input and ADM7150ACP 4.5 V to 16 V 800 mA Fixed 8-Lead LFCSP output voltage. See Table 9 and Table 10 for selection guides. ADM7150ARD 4.5 V to 16 V 800 mA Fixed 8-Lead SOIC The ADM7155 regulator typical output noise is 0.9 μV rms from ADM7151ACP 4.5 V to 16 V 800 mA Adj 8-Lead LFCSP 100 Hz to 100 kHz for fixed output voltage options and 1.5 nV/√Hz ADM7151ARD 4.5 V to 16 V 800 mA Adj 8-Lead SOIC for noise spectral density from 10 kHz to 1 MHz. ADM7154ACP 2.3 V to 5.5 V 600 mA Fixed 8-Lead LFCSP ADM7154ARD 2.3 V to 5.5 V 600 mA Fixed 8-Lead SOIC 1 Adj means adjustable.
Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY 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 UNDERVOLTAGE LOCKOUT (UVLO) PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PSRR PERFORMANCE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE