-
LTC3026: 1.5A Low Input Voltage VLDO Linear Regulator Data Sheet8/14/2012PDF259K
Overview
Features and Benefits
- Input Voltage Range:
- 1.14V to 3.5V (with Boost Enabled)
- 1.14V to 3.5V (with Boost Enabled)
- Low Dropout Voltage: 100mV at IOUT = 1.5A
- Adjustable Output Range: 0.4V to 2.6V
- Output Current: Up to 1.5A
- Excellent Supply Rejection Even Near Dropout
- Shutdown Disconnects Load from VIN and VBST
- Low Operating Current: IIN = 950µA at VIN = 1.5V
- Low Shutdown Current:
- IIN < 1µA (Typ)
- IBST = 0.1µA (Typ)
- Stable with 10µF or Greater Ceramic Capacitors
- Short-Circuit, Reverse Current Protected
- Overtemperature Protected
- Available in 10-Lead MSOP and 10-Lead (3mm × 3mm) DFN Packages
Product Details
The LTC3026 is a very low dropout (VLDO™) linear regulator that can operate at input voltages down to 1.14V. The device is capable of supplying 1.5A of output current with a typical dropout voltage of only 100mV. To allow operation at low input voltages the LTC3026 includes a boost converter that provides the necessary headroom for the internal LDO circuitry.
Output current comes directly from the input supply to maximize efficiency. The boost converter requires only a small chip inductor and ceramic capacitor for operation. Additionally, the boosted output voltage of one LTC3026 can supply the boost voltage for other LTC3026s, thus requiring a single inductor for multiple LDOs. A user supplied boost voltage can be used eliminating the need for an inductor altogether.
The LTC3026 regulator is stable with 10μF or greater ceramic output capacitors. The device has a low 0.4V reference voltage which is used to program the output voltage via two external resistors. The device also has internal current limit, overtemperature shutdown, and reverse output current protection. The LTC3026 is available in a small 10-lead MSOP or low profile (0.75mm) 10-lead 3mm × 3mm DFN package.
Features | |
LTC3026 | Integrated boost converter |
LTC3026-1 | Boost converter internally disabled and required an external 5V supply to operate |
Applications
- High Efficiency Linear Regulator
- Post Regulator for Switching Supplies
- Microprocessor Supply
Product Categories
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)
Documentation & Resources
-
R415 Reliability Data3/23/2018PDF25 K
-
DC833A - Demo Manual9/24/2009PDF391K
-
Linear Low Dropout (LDO) Regulator Solutions4/17/2018PDF3 M
-
Power Management Solutions for NXP Processors4/9/2018PDF8 M
-
LDO Linear Regulators Rival Switchers for Efficiency5/1/2005 LT Journal
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.
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:
Reference Designs (11)
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 |
---|---|---|---|---|
LTC3026EDD#PBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
LTC3026EDD#TRPBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
LTC3026EMSE#PBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
LTC3026EMSE#TRPBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
LTC3026IDD#PBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
LTC3026IDD#TRPBF | Material Declaration | Reliability Data | 10-Lead DFN (3mm x 3mm w/ EP) | |
LTC3026IMSE#PBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
LTC3026IMSE#TRPBF | Material Declaration | Reliability Data | 10-Lead MSOP w/ EP | |
Wafer Fabrication Data | R415 Reliability Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
LTC3026 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
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.