Alternative Parts

Overview

Features and Benefits

  • Ultralow noise: 9 μV rms
  • No noise bypass capacitor required
  • Stable with 1 μF ceramic input and output capacitors
  • Maximum output current: 200 mA
  • Input voltage range: 2.2 V to 5.5 V
  • Low quiescent current
    • IGND = 10 μA with IOUT = 0 μA
    • IGND = 265 μA with IOUT = 200 mA
  • Low shutdown current: <1 μA
  • Low dropout voltage: 135 mV at IOUT = 200 mA
  • Initial accuracy: ±1%
  • Accuracy over line, load, and temperature: ±2.5%
  • 16 fixed output voltage options: 1.1 V to 3.3 V
  • PSRR performance of 70 dB at 10 kHz
  • Current-limit and thermal overload protection
  • Logic controlled enable
  • Internal pull-down resistor on EN input
  • 5-lead TSOT package
  • 6-lead LFCSP package
  • 4-ball, 0.4 mm pitch WLCSP
  • AEC-Q100 qualified for automotive applications
ADP151-EP supports defense and aerospace applications (AQEC standard)
  • Download ADP151-EP data sheet (pdf)
  • Military temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/12666 DSCC Drawing Number

Product Details

The ADP151 is an ultralow noise, low dropout (LDO) linear regulator that operates from 2.2 V to 5.5 V and provides up to 200 mA of output current. The low 135 mV dropout voltage at 200 mA load improves efficiency and allows operation over a wide input voltage range.

Using an innovative circuit topology, the ADP151 achieves ultralow noise performance without the necessity of a bypass capacitor, making the device ideal for noise-sensitive analog and RF applications. The ADP151 also achieves ultralow noise performance without compromising the power supply rejection ratio (PSRR) or transient line and load performance. The low 265 μA of operating supply current at 200 mA load makes the ADP151 suitable for battery-operated portable equipment.

The ADP151 also includes an internal pull-down resistor on the EN input.

The ADP151 is specifically designed for stable operation with tiny 1 μF, ±30% ceramic input and output capacitors to meet the requirements of high performance, space constrained applications.

The ADP151 is capable of 16 fixed output voltage options, ranging from 1.1 V to 3.3 V.

Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP151 is available in tiny 5-lead TSOT, 6-lead LFCSP, and 4-ball, 0.4 mm pitch, halide-free WLCSP packages for the smallest footprint solution to meet a variety of portable power application requirements.

Applications

  • RF, voltage controlled oscillator (VCO), and phase locked loop (PLL) power supplies
  • Mobile phones
  • Digital camera and audio devices
  • Portable and battery-powered equipment
  • Post dc-to-dc regulation
  • Portable medical devices

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

ADP151-1
ADP151-1.1
ADP151-1.2
ADP151-1.5
ADP151-1.8
ADP151-2
ADP151-2.5
ADP151-2.6
ADP151-2.75
ADP151-2.8
ADP151-2.85
ADP151-3
ADP151-3.0
ADP151-3.3

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

LTPowerCAD

Design tools for the following parts are available in LTpowerCAD:

ADP151

Design Tools

ADI Linear Regulator Design Tool and Parametric Search

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

Reference Designs (4)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy

Sample & Buy functionality exists in desktop site
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.