LTC3113
RECOMMENDED FOR NEW DESIGNS3A Low Noise Buck-Boost DC/DC Converter
- Part Models
- 8
- 1ku List Price
- Starting From $5.98
Overview
- Regulated Output with Input Voltage Above, Below or Equal to the Output Voltage
- 1.8V to 5.5V Input and Output Voltage Range
- 3A Continuous Output Current VIN > 3.0V, VOUT = 3.8V
- 1.5A Continuous Output Current for VIN ≥ 1.8V, VOUT = 3.3V
- Single Inductor
- Low Noise Buck-Boost Architecture
- Up to 96% Efficiency
- Programmable Frequency from 300kHz to 2MHz
- Selectable Burst Mode® Operation
- Output Disconnect in Shutdown
- Shutdown Current: <1μA
- Internal Soft-Start
- Small, Thermally Enhanced 16-Lead (4mm × 5mm × 0.75mm) DFN Package and 20-Lead TSSOP Package
The LTC3113 is a wide VIN range, highly efficient, fixed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides low noise operation, making it well suited for RF and precision measurement applications.
The LTC3113 can deliver up to 3A of continuous output current to satisfy the most demanding applications. Higher output current is possible in stepdown (buck) mode. Integrated low RDS(ON) power MOSFETs and a programmable switching frequency up to 2MHz result in a compact solution footprint. Selectable Burst Mode operation improves efficiency at light loads.
Other features include <1μA shutdown current, integrated soft-start, short-circuit protection, current limit and thermal overload protection. The LTC3113 is housed in the thermally enhanced 16-lead (4mm × 5mm × 0.75mm) DFN and 20-lead TSSOP packages.
Applications
- Wireless Modems
- Backup Power Systems
- Portable Inventory Terminals
- Portable Barcode Readers
- Portable Instrumentation
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3113EDHD#PBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC3113EDHD#TRPBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC3113EFE#PBF | 20-Lead TSSOP w/ EP | ||
| LTC3113EFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LTC3113IDHD#PBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC3113IDHD#TRPBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC3113IFE#PBF | 20-Lead TSSOP w/ EP | ||
| LTC3113IFE#TRPBF | 20-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 30, 2020 - 20_0244 Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
||
| LTC3113EDHD#PBF | PRODUCTION | |
| LTC3113EDHD#TRPBF | PRODUCTION | |
| LTC3113EFE#PBF | PRODUCTION | |
| LTC3113EFE#TRPBF | PRODUCTION | |
| LTC3113IDHD#PBF | PRODUCTION | |
| LTC3113IDHD#TRPBF | PRODUCTION | |
| LTC3113IFE#PBF | PRODUCTION | |
| LTC3113IFE#TRPBF | PRODUCTION | |
|
May 18, 2026 - 26_0072 Epoxy Change for Select TSSOP Products |
||
| LTC3113EFE#PBF | PRODUCTION | |
| LTC3113EFE#TRPBF | PRODUCTION | |
| LTC3113IFE#PBF | PRODUCTION | |
| LTC3113IFE#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LTC3113EFE#PBF | PRODUCTION | |
| LTC3113EFE#TRPBF | PRODUCTION | |
| LTC3113IFE#PBF | PRODUCTION | |
| LTC3113IFE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4417 | RECOMMENDED FOR NEW DESIGNS | Prioritized PowerPath™ Controller |
Tools & Simulations
LTspice 2
- LTC3113 Demo Circuit - Low Noise Buck-Boost Regulator (1.8-5.5V to 3.3V @ 3A)
- LTC3113 Demo Circuit - Low Noise Buck-Boost DC/DC for Pulsed Load or RF Power Amplifier (3.3V to 3.8V@3A)
Models for the following parts are available in LTspice:
- LTC3113
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.
Evaluation Kits
LTC3113EDHD Demo Board