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ADM7151ARDZ-02

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Linear Voltage Regulator, 800mA, Adjustable, 1.5 4 V, ±1% 8-Pin, SOIC

  • Package/Case :
  • 8-SOIC (0.154, 3.90mm Width)
  • Product Categories :
  • LDO Linear Regulators ; Positive Linear Regulators (LDO)
  • RoHs Status:
  • Pb-free Halide free
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  • 1674

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ADM7151ARDZ-02 Product Details

FEATURES

Input voltage range: 16 V Maximum output current: 800 mA Adjustable output from 5.1 V Low noise 1.0 �V rms total integrated noise from to 100 kHz 1.6 �V rms total integrated noise from to 100 kHz Noise spectral density: 1.7 nVHz from 10 kHz to 1 MHz Power supply rejection ratio (PSRR) 400 mA load >90 dB from 1 kHz to 100 kHz, VOUT at 1 MHz, VOUT 5 V Dropout voltage: V at VOUT 800 mA load Initial voltage accuracy: �1% Voltage accuracy over line, load and temperature: �2% Quiescent current (IGND): at no load Low shutdown current: 0.1 �A Stable with 10 �F ceramic output capacitor 8-lead LFCSP package and 8-lead SOIC package

800 mA Ultralow Noise, High PSRR, RF Linear Regulator ADM7151
APPLICATIONS

Regulated power noise sensitive applications RF mixers, phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs Clock distribution circuits Ultrasound and other imaging applications High speed RF transceivers High speed, 16-bit or greater ADCs Communications and infrastructure Cable digital-to-analog converter (DAC) drivers

The is a low dropout (LDO) linear regulator that operates from 16 V and provides mA of output current. Using an advanced proprietary architecture, it provides high power supply rejection (>90 dB from 1 kHz to 1 MHz), ultralow noise (1.7 nVHz from 10 kHz to 1 MHz), and excellent line and load transient response with 10 �F ceramic output capacitor. The output voltage can be set to any voltage between 1.5 V and 5.1 V with two resistors. The ADM7151ARDZ-02 is available in two models that optimize power dissipation and PSRR performance as a function of input and output voltage. See Table 6 and Table 7 for selection guides. The ADM7151ARDZ-02 regulator output noise 1.0 �V rms from to 100 kHz, and the noise spectral density is 1.7 nV/Hz from 10 kHz to 1 MHz. The ADM7151ARDZ-02 is available 3 mm LFCSP and 8-lead SOIC packages, making it not only a very compact solution,

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 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

but also providing excellent thermal performance for applications requiring mA of output current in a small, low profile footprint.

Figure 2. Noise Spectral Density (NSD) vs. Frequency for Various CBYP

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Features.............................................................................................. 1 Applications....................................................................................... 1 Typical Application Circuit............................................................. 1 General Description......................................................................... 1 Revision History............................................................................... 2 Specifications..................................................................................... 3 Input and Output Capacitor, Recommended Specifications.. 4 Absolute Maximum Ratings............................................................ 5 Thermal Data................................................................................ 5 Thermal Resistance...................................................................... 5 ESD Caution.................................................................................. 5 Pin Configurations and Function Descriptions........................... 6 Typical Performance Characteristics............................................. 7

Theory of Operation...................................................................... 15 Applications Information.............................................................. 16 Model Selection.......................................................................... 16 Capacitor Selection.................................................................... 16 Enable (EN) and Undervoltage Lockout (UVLO)................. 18 Start-Up Time............................................................................. 19 REF, BYP, and VREG Pins......................................................... 19 Current-Limit and Thermal Overload Protection................. 19 Thermal Considerations............................................................ 19 Printed Circuit Board Layout Considerations........................ 22 Outline Dimensions....................................................................... 23 Ordering Guide.......................................................................... 24

VIN 4.5 V, VOUT 1.5 V, VREF = VREF_SENSE (unity gain), VEN = VIN, IOUT = 10 mA, CIN = COUT = CREG = 10 �F, CREF = CBYP = 1 �F. = 25�C for typical specifications. to +125�C for minimum/maximum specifications, unless otherwise noted. Table 1.

Parameter INPUT VOLTAGE RANGE OPERATING SUPPLY CURRENT SHUTDOWN CURRENT OUTPUT NOISE SPECTRAL DENSITY POWER SUPPLY REJECTION RATIO ADM7151-04 Symbol VIN IGND IIN-SD OUTNOISE NSD PSRR Test Conditions/Comments IOUT 0 �A IOUT 800 mA VEN = GND to 100 kHz, independent of output voltage to 100 kHz, independent of output voltage 10 kHz to 1 MHz, independent of output voltage 1 kHz to 100 kHz, VIN 6.2 V, VOUT mA 1 MHz, VIN 6.2 V, VOUT mA 1 kHz to 100 kHz, VIN 6.2 V, VOUT mA 1 MHz, VIN 6.2 V, VOUT mA 1 kHz to 100 kHz, VIN 5.2 V, VOUT mA 1 MHz, VIN 5.2 V, VOUT mA 1 kHz to 100 kHz, VIN 5.2 V, VOUT mA 1 MHz, VIN 5.2 V, VOUT 400 mA VOUT = VREF IOUT mA < IOUT < 800 mA, over line, load and temperature VIN 16 V IOUT 800 mA Min 4.5 Typ Max Unit �A �V rms �V rms nV/Hz dB %

VOUT REGULATION Line Regulation Load Regulation 1 CURRENT-LIMIT THRESHOLD VREF Current Limit Threshold VOUT Current Limit Threshold 2 DROPOUT VOLTAGE 3 PULL-DOWN RESISTANCE VOUT Pull-Down Resistance VREG Pull-Down Resistance VREF Pull-Down Resistance VBYP Pull-Down Resistance START-UP TIME 4 VOUT Start-Up Time VREG Start-Up Time VREF Start-Up Time THERMAL SHUTDOWN Thermal Shutdown Threshold Thermal Shutdown Hysteresis UNDERVOLTAGE THRESHOLDS Input Voltage Rising Input Voltage Falling Hysteresis

1.0 VDROPOUT IOUT = 400 mA, VOUT 5 V IOUT = 800 mA, VOUT 5 V VEN 0 V, VOUT 1 V VEN 0 V, VREG 1 V VEN 0 V, VREF 1 V VEN 0 V, VBYP 1 V VOUT 5 V

VOUT-PULL VREG-PULL VREF-PULL VBYP-PULL tSTART-UP tREG-START-UP tREF-START-UP TSSD TSSD-HYS UVLORISE UVLOFALL UVLOHYS


Feature

  • Input voltage range: 4.5 V to 16 V
  • Maximum output current: 800 mA
  • Adjustable output from 1.5 V to 5.1 V
  • Low noise
    • 1.0 μV rms total integrated noise from 100 Hz to 100 kHz
    • 1.6 μV rms total integrated noise from 10 Hz to 100 kHz
  • Noise spectral density: 1.7 nV√Hz from 10 kHz to 1 MHz
  • Power supply rejection ratio (PSRR) at 400 mA load
    • >90 dB from 1 kHz to 100 kHz, VOUT = 5 V
    • >60 dB at 1 MHz, VOUT = 5 V
  • Dropout voltage: 0.6 V at VOUT = 5 V, 800 mA load
  • Initial voltage accuracy: ±1%
  • Voltage accuracy over line, load and temperature: ±2%
  • Quiescent current (IGND): 4.3 mA at no load
  • Low shutdown current: 0.1 μA
  • Stable with a 10 μF ceramic output capacitor
  • 8-lead LFCSP package and 8-lead SOIC package

Applications

  • Regulated power noise sensitive applications
    • RF mixers, phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs
  • Clock distribution circuits
  • Ultrasound and other imaging applications
  • High speed RF transceivers
  • High speed, 16-bit or greater ADCs
  • Communications and infrastructure
  • Cable digital-to-analog converter (DAC) drivers

ADM7151ARDZ-02 Pinout
(Picture: Pinout)

ADM7151ARDZ-02 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Manufacturer
  • Analog Devices Inc.
  • Input Voltage MAX
  • 16 V
  • Output Voltage
  • 5.1 V
  • Dropout Voltage Max
  • 0.6 V
  • Output Current
  • 800 mA
  • Load Regulation
  • 0.5 % / A
  • Number of Outputs
  • 1 Output
  • Output Type
  • Adjustable
  • Maximum Operating Temperature
  • + 125 C
  • Mounting Style
  • SMD/SMT
  • Package / Case
  • SOIC-EP-8
  • Input Voltage MIN
  • 4.5 V
  • Line Regulation
  • 0.01 % / V
  • Minimum Operating Temperature
  • - 40 C
  • Packaging
  • Tube
  • Product
  • LDO Voltage Regulators
  • PSRR / Ripple Rejection Typ
  • 90 dB
  • Factory Pack Quantity
  • 98
  • Type
  • Ultralow Noise High PSRR
  • Voltage Regulation Accuracy
  • 2 %

ADM7151ARDZ-02 Documents

  • ADM7151 Technical Documentation/Data sheet

ADM7151ARDZ-02 Related Products

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Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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