LT3027
Dual 100mA, Low Dropout, Low Noise, Micropower Regulator with Independent Inputs
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Overview
Features and Benefits
- Low Noise: 20µVRMS (10Hz to 100kHz)
- Low Quiescent Current: 25µA/Channel
- Independent Inputs
- Wide Input Voltage Range: 1.8V to 20V
- Output Current: 100mA/Channel
- Very Low Shutdown Current: <0.1µA
- Low Dropout Voltage: 300mV at 100mA
- Adjustable Output from 1.22V to 20V
- Stable with 1µF Output Capacitor
- Stable with Aluminum, Tantalum or Ceramic Capacitors
- Reverse Battery Protected
- No Protection Diodes Needed
- Overcurrent and Overtemperature Protected
- Tracking/Sequencing Capability
- Thermally Enhanced 10-Lead MSOP and DFN Packages
Product Details
The LT3027 is a dual, micropower, low noise, low dropout regulator with independent inputs. With an external 0.01µF bypass capacitor, output noise is a low 20µVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 25µA quiescent current per channel makes it an ideal choice. In shutdown, quiescent current drops to less than 0.1µA. Shutdown control is independent for each channel, allowing for flexibility in power management. The device is capable of operating over an input voltage from 1.8V to 20V, and can supply 100mA of output current from each channel with a dropout voltage of 300mV. Quiescent current is well controlled in dropout.
The LT3027 regulator is stable with output capacitors as low as 1µF. Small ceramic capacitors can be used without the series resistance required by other regulators.
Internal protection circuitry includes reverse battery protection, current limiting and thermal limiting protection. The device is available as an adjustable device with a 1.22V reference voltage. The LT3027 regulator is available in the thermally enhanced 10-lead MSOP and low profile (0.75mm) 3mm × 3mm DFN packages.
Applications
- Cellular Phones
- Pagers
- Battery-Powered Systems
- Frequency Synthesizers
- Wireless Modems
- Tracking/Sequencing Power Supplies
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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R386 Reliability Data3/22/2018PDF139 K
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DC811A - Demo Manual9/24/2009PDF316K
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Linear Low Dropout (LDO) Regulator Solutions4/17/2018PDF3 M
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:
LT3027
Reference Designs (2)
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LT3027EDD#PBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
| LT3027EDD#TRPBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
| LT3027EMSE#PBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
| LT3027EMSE#TRPBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
| LT3027IDD#PBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
| LT3027IDD#TRPBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
| LT3027IMSE#PBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
| LT3027IMSE#TRPBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
| Wafer Fabrication Data | R386 Reliability Data |
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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.