LTC3883 LTC3883-1
RECOMMENDED FOR NEW DESIGNSSingle Phase Step-Down DC/DC Controller with Digital Power System Management
- Part Models
- 16
- 1ku List Price
- Starting From $7.28
Overview
- PMBus/I2C Compliant Serial Interface
- Telemetry Read-Back Includes VIN, IIN, VOUT, IOUT, Temperature and Faults
- Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV/OC and Frequency Synchronization (250kHz to 1MHz)
- ±0.5% Output Voltage Accuracy over Temperature
- Integrated 16-Bit ADC and 12-Bit DAC
- Integrated High Side Current Sense Amplifier
- Internal EEPROM with ECC and Fault Logging
- Integrated N-Channel MOSFET Gate Drivers
Power Conversion
- Wide VIN Range: 4.5V to 24V
- VOUT Range: 0.5V to 5.4V
- Analog Current Mode Control Loop
- Accurate PolyPhase® Current Sharing for Up to 6 Phases
- Auto Calibration of Inductor DCR
- Minimum On Time 45ns
- Available in a 32-Lead (5mm × 5mm) QFN Package
- AEC-Q100 Qualified for Automotive Applications
The LTC3883/LTC3883-1 are PolyPhase capable DC/DC synchronous step-down switching regulator controllers with a PMBus compliant serial interface. The controllers use a constant frequency, current mode architecture that is supported by the LTPowerPlay™ software development tool with graphical user interface (GUI).
Switching frequency, output voltage, and device address can be programmed using external configuration resistors. Additionally, parameters can be set via the digital interface or stored in on-chip EEPROM.
The LTC3883/LTC3883-1 can be configured for Burst Mode® operation, discontinuous (pulse-skipping) mode or continuous inductor current mode. The LTC3883 incorporates an internal 5V linear regulator while the LTC3883-1 uses an external 5V supply for minimum power loss.
The LTC3883/LTC3883-1 are available in a 32-lead 5mm × 5mm QFN package.
Applications
- High Current Distributed Power Systems
- Telecom Systems
- Intelligent Energy Efficient Power Regulation
Documentation
Data Sheet 1
User Guide 2
Application Note 6
Technical Articles 5
Informational 1
Product Information 1
Video 4
Product Selector Card 2
Device Drivers 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 |
|---|---|---|---|
| LTC3883EUH#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH#WPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH#WTRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH-1#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH-1#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH-1#WPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883EUH-1#WTRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH#WPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH#WTRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH-1#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH-1#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH-1#WPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC3883IUH-1#WTRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC3880 | RECOMMENDED FOR NEW DESIGNS | Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC3883
- LTC3883-1
Linduino 3
LTpowerCAD 2
- LTC3883 Project - Single Phase Step-Down DC/DC Controller with Digital Power System Management & Rsense Current Sensing (6.5-24V to 1.8V @ 20A)
- LTC3883 Project - Single Phase Step-Down DC/DC Controller with Digital Power System Management & Inductor DCR Current Sensing (6.5-24V to 1.8V @ 20A)
Design tools for the following parts are available in LTpowerCAD:
- LTC3883
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.
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
Evaluation Kits
LTC3883EUH Demo Board | Programming Clamshell Socketed Demo Board
Resources
LTC3883EUH Demo Board | 6.5V < VIN < 24V; 0.5V < VOUT < 5V @ 20A, with RSENSE Current Sense
Resources
Software
LTC3880EUJ/LTC3883EUH | 3-Phase Demo Board, VIN Range: 6.5V to 14V, VOUT Range: 0.5V to 1.8V @ 60A, PMBus Controlled, Works with DC1613 Dongle