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
- 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
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Markets and Technologies
Product Lifecycle
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)
Documentation
Application Notes (1)
Frequently Asked Questions (1)
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.
Models for the following parts are available in LTspice:
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.
Design tools for the following parts are available in LTpowerCAD:
Design Tools
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
Reference Designs (5)
Reference Materials
Solutions Bulletins & Brochures (1)
Circuit Note (4)
Videos (1)
Wearable VSM Demonstration Platform
Technical Articles (4)
Analog Dialogue
Design Resources
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PCN-PDN Information
Sample & Buy
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.