LT7184S
RECOMMENDED FOR NEW DESIGNSDual Channel 9A, 16V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management
- Part Models
- 2
- 1ku List Price
- Starting From $8.61
Overview
- Silent Switcher® 2 Architecture: Enables Compact, Efficient, Low EMI Solution
- PMBus/I2C Serial Interface
- Telemetry Read Back Includes: VOUT, IOUT, VIN, Die Temperature, Faults
- Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, UV/OV, Phase, Frequency (up to 4MHz), Loop Compensation
- Integrated EEPROM with Fault Event Log
- Set Key Parameters with Configuration Resistors for Operation without Programming
- ±0.25% Output Voltage Accuracy over Temperature from 0.6V to 1.375V
- PolyPhase® Load Sharing for up to Eight Phases
- Wide VIN Range: Down to 2.9V, or 1.5V with EXTVCC up to 16V
- Over 94% Peak Efficiency at 1MHz, 12VIN to 3.3VOUT
- VOUT Range: 0.4V to 5.5V (up to 85% x VIN);
- Differential Remote VOUT Sense
- External Frequency Synchronization
- 36-Lead (4mm x 5mm) LQFN Package
The LT7184S is a dual-output monolithic PolyPhase DC/DC synchronous step-down regulator that delivers up to 7A of continuous current from both channels simultaneously and supports loads from -8A to +9A in either channel. The LT7184S features secondgeneration Silent Switcher® architecture with integrated VIN bypass capacitors for fast, clean, lowovershoot switching edges to deliver high efficiency at high switching frequencies and minimize Electromagnetic interference (EMI) emissions. The I2Cbased PMBus 1.3-compliant serial interface enables control of device functions and provides telemetry information for system monitoring. The LT7184S is supported by the LTpowerPlay® graphical user interface tool. The output voltage, frequency, phase, and device address can be configured using resistors for operation without programming. Settings can also be written via the serial interface and/or stored in EEPROM. The controlled on-time valley current mode control architecture with 25ns (typical) minimum on-time enables high switching frequency at low output voltage with excellent transient response in a small overall solution size.
Applications
- Communications, Storage, and Industrial Systems
- Data Center and Solid-State Drive Power Supplies
Documentation
Data Sheet 1
User Guide 2
Product Selector Card 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 |
|---|---|---|---|
| LT7184SRV#PBF | 36-Lead LQFN Package (4mm × 5mm × 0.95mm) | ||
| LT7184SRV#TRPBF | 36-Lead LQFN Package (4mm × 5mm × 0.95mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT7184S
LTpowerPlay®
LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.
Open ToolLTspice® 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
Dual Channel 9A, 16V, PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management