Features and Benefits
- Wide Input Voltage Range: 3V to 80V
- Low Quiescent Current: 46μA
- Low Dropout Voltage: 300mV
- Output Current: 50mA
- PWRGD Flag with Programmable Delay
- No Protection Diodes Needed
- Adjustable Output from 1.24V to 60V
- 1μA Quiescent Current in Shutdown
- Stable with 1μF Output Capacitor
- Stable with Ceramic, Tantalum, and Aluminum Capacitors
- Reverse-Battery Protection
- No Reverse Current Flow from Output to Input
- Thermal Limiting
- Thermally Enhanced 12-Lead MSOP and 10-Pin (3mm × 3mm) DFN Packages
The LT3011 is a high voltage, micropower, low dropout linear regulator. The device is capable of supplying 50mA of output current with a dropout voltage of 300mV. Designed for use in battery-powered high voltage systems, the low quiescent current (46μA operating and 1μA in shutdown) is well controlled in dropout, making the LT3011 an ideal choice.
The LT3011 includes a PWRGD flag to indicate output regulation. The delay between regulated output level and flag indication is programmable with a single capacitor. The LT3011 also has the ability to operate with very small output capacitors; it is stable with only 1μF on the output. Small ceramic capacitors can be used without the addition of any series resistance (ESR) as is common with other regulators. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting, and reverse current protection.
The LT3011 features an adjustable output with a 1.24V reference voltage. The device is available in the thermally enhanced 12-lead MSOP and the low profile (0.75mm) 10-pin (3mm × 3mm) DFN package, both providing excellent thermal characteristics.
- Low Current High Voltage Regulators
- Regulator for Battery-Powered Systems
- Telecom Applications
- Automotive Applications
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 (1)
Demonstration circuit 1407A is a high voltage low dropout micropower linear regulator featuring the LT3011 in the thermally enhanced MSOP-12 package. The DC1407A has an input voltage range from 3V to 80V and is capable of delivering up to 50mA of output current. The output voltage is jumper-selectable and can be set to 3.3V, 5V or a user-determined value. Operating quiescent current is 46µA and the shutdown current is less than 1µA. The LT3011 includes a PWRGD flag to indicate output regulation.
Tools & Simulations
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.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Models for the following parts are available in LTspice:
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.
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.