Features and Benefits
- Regulates VOUT Above, Below or Equal to VIN
- Wide VIN Range: 2.4V to 25V, <1V to 25V (Using EXTVCC Input)
- VOUT Range: 1V to 25V
- Adjustable Output Voltage (LTC3130)
- Four Selectable Fixed Output Voltages (LTC3130-1)
- 1.2µA No-Load Input Current in Burst Mode® Operation (VIN = 12V, VOUT = 5V)
- 600mA Output Current in Buck Mode
- Pin-Selectable 850mA/450mA Current Limit (LTC3130)
- Up to 95% Efficiency
- Pin-Selectable Burst Mode Operation
- 1.2MHz Ultralow Noise PWM Frequency
- Accurate RUN Pin Threshold n Power Good Indicator
- Programmable Maximum Power Point Control
- IQ = 500nA in Shutdown
- Thermally-Enhanced 20-Lead 3mm × 4mm QFN and 16-Lead MSOP Packages
The LTC3130/LTC3130-1 are high efficiency, low noise, 600mA buck-boost converters with wide VIN and VOUT ranges. For high efficiency operation at light loads, BurstMode operation can be selected, reducing the quiescent current to just 1.6µA. Converter start-up is achieved from sources as low as 7.5µW.
TheLTC3130/LTC3130-1 employ an ultralow noise, 1.2MHz PWM architecture that minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Built-in loop compensation and soft-start reduces external parts count and simplifies the design. Features include an accurate RUN comparator threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal sources such as photovoltaic panels. The LTC3130-1 includes an internal voltage divider to provide four selectable fixed output voltages.
Additional features include a power good output, an external VCC input and thermal shutdown.
The LTC3130 and LTC3130-1 are available in thermally-enhanced 20-lead 3mm × 4mm QFN and 16-lead MSOP packages.
- Long-Life, Battery-Operated Instruments
- Portable Military Radios
- Low Power Sensors
- Solar Panel Post-Regulator/Charger
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)
Demonstration circuit 2397A features the LTC3130-1, a wide input voltage, wide output voltage operating range, high efficiency, low noise monolithic DC/DC buck-boost converter that provides 600mA of output current when in buck mode.
The LTC3130-1 has 4-pin selectable output voltages (1.8V, 3.3V, 5V and 12V) and operates from input voltages of 2.4V to 25V. The LTC3130-1 incorporates a proprietary low noise switching algorithm which optimizes efficiency with input voltages above, below, or equal to the output voltage and ensures seamless transitions between operating modes.
Demonstration Circuit 2355A features the LTC3130, a wide input voltage, wide output voltage operating range, high efficiency, low noise monolithic DC/DC buck-boost converter that can provide up to 600mA output current in buck mode.
The LTC3130 operates from input voltages of 2.4V to 25V. The demo board has been designed with the adjustable output voltage set to 5V. The LTC3130 incorporates a proprietary low noise switching algorithm which optimizes efficiency with input voltages above, below or equal to the output voltage and ensures seamless transitions between operating modes.
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.
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.