LT8625SP/LT8625SP-1
RECOMMENDED FOR NEW DESIGNS18V/8A Step-Down Silent Switcher 3 with Ultralow Noise Reference
- Part Models
- 4
- 1ku List Price
- Starting From $5.50
Overview
- Silent Switcher® 3 Architecture
- Ultralow RMS Noise (10Hz to 100kHz): 4μVRMS
- Ultralow Spot Noise: 4nV/√Hz at 10kHz
- Ultralow EMI Emissions on Any PCB
- Internal Bypass Capacitors Reduce Radiated EMI
- High Efficiency at High Frequency
- Ultrafast Transient Response: 1μs
- Fast Minimum Switch On-Time: 15ns
- Input Voltage Range: 2.7V to 18V
- Output Voltage Range: 0V to (PVIN − 0.5V)
- 8A Maximum Continuous Output Current
- Precision Reference: ± 0.8% Over Temperature with Remote Sense
- Supports Dynamic Output Voltage Control
- PolyPhase® Operation: Up to 12 Phases
- Forced Continuous Mode Capability
- Adjustable and Synchronizable: 300kHz to 4MHz
- Programmable Power Good
- Small 20-Lead 4mm × 3mm (LT8625SP) or 24-Lead 4mm × 4mm (LT8625SP-1) LQFN Exposed Back Package for Optional Heat Sink Mount
The LT8625SP/LT8625SP-1 synchronous step-down regulator features third-generation Silent Switcher technology which is uniquely designed to combine an ultralow noise reference with Silent Switcher architecture in order to achieve both high efficiency and excellent wideband noise performance.
The innovative ultralow noise architecture provides exceptional low frequency (0.1Hz to 100kHz) output noise performance in a switching regulator. The output voltage can be programmed with a single resistor, providing unity-gain operation over the output range, resulting in virtually constant output noise independent of output voltage.
Silent Switcher architecture minimizes EMI emissions while delivering high efficiency at high switching frequencies. The top of the package features exposed die for optional heat sink attachment which can be used to significantly improve thermal performance.
The LT8625SP/LT8625SP-1 is ideal for high current, noise sensitive applications which benefit from the high efficiency of a synchronous switching regulator.
Applications
- RF Power Suppliers: PLLs, VCOs, Mixers, LNAs, PAs
- High Speed/High Precision ADCs/DACs
- Low Noise Instrumentation
Documentation
Data Sheet 1
User Guide 2
Technical Articles 3
Video 1
Book & eBook 1
Brochure 1
Analog Dialogue 1
Webcast 2
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 |
|---|---|---|---|
| LT8625SPJV#TRMPBF | 20-Lead (3mm × 4mm × 0.95mm) | ||
| LT8625SPJV#TRPBF | 20-Lead (3mm × 4mm × 0.95mm) | ||
| LT8625SPJV-1#TRMPBF | 24-Lead (4mm × 4mm × 0.95mm) | ||
| LT8625SPJV-1#TRPBF | 24-Lead (4mm × 4mm × 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:
- LT8625S
- LT8625SP
- LT8625SP-1
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LT8625S
- LT8625SP
- LT8625SP(INVERTING)
- LT8625SP-1
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.
