LTM4703
RECOMMENDED FOR NEW DESIGNS16VIN, 12A Ultralow Noise Silent Switcher 3 μModule Regulator
- Part Models
- 2
- 1ku List Price
- Starting From $20.46
Overview
- Complete Solution in <1cm2 (Single-Sided PCB) or .5cm2 (Dual-Sided PCB)
- Low Noise Silent Switcher®3 Architecture
- Ultralow EMI Emissions
- Ultralow RMS Noise (10Hz to 100kHz): 8μVRMS
- ±1.5% Maximum Total DC Output Voltage Error Over Line, Load, and Temperature
- Input Voltage Range: 3V to 16V
- Output Voltage Range: 0.3V to 6V
- 12A Maximum Continuous Output Current
- Adjustable and Synchronizable: 300kHz to 3MHz
- Current Mode Control, Fast Transient Response
- Forced Continuous Mode (FCM) Capability
- Multiphase Parallel with Current Sharing
- Programmable Power Good
- 6.25mm × 6.25mm × 5.07mm BGA Package
The LTM®4703 is a complete 12A step-down Silent Switcher 3 μModule® (micromodule) regulator in a tiny 6.25mm × 6.25mm × 5.07mm ball grid array (BGA) package.The package includes the switching controller, the power MOSFETs, an inductor, and support components. Operating over an input voltage range of 3V to 16V, the LTM4703 supports an output range of 0.3V to 6V. A single resistor sets the output voltage, providing unity gain operation over the output range and resulting in virtually constant output noise independent of the output voltage. Only bulk input and output capacitors are needed to finish the design.
The LTM4703 employs Silent Switcher 3 architecture with internal hot loop bypass capacitors to achieve both low electromagnetic interference (EMI) and high efficiency. Also, the LTM4703 has an ultralow noise architecture to obtain exceptional low-frequency (<100kHz) output noise. These low EMI and low noise features make the LTM4703 ideal for high current and noise-sensitive applications, which benefit from the high efficiency of a synchronous switching regulator.
The LTM4703 is available with a RoHS-compliant terminal finish.
APPLICATIONS
- Telecom, Networking, and Industrial Equipment
- RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs
- Low Noise Instrumentation
- High Speed/High Precision Data Converters
- Medical Equipment
Documentation
Data Sheet 1
User Guide 1
Brochure 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 |
|---|---|---|---|
| LTM4703EY#PBF | 49-Lead BGA (6.25mm x 6.25mm x 5.02mm) | ||
| LTM4703IY#PBF | 49-Lead BGA (6.25mm x 6.25mm x 5.02mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 9, 2025 - 25_0115 LTM4703 - Die Thickness Change |
||
| LTM4703EY#PBF | PRODUCTION | |
| LTM4703IY#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTM4703
LTpowerCAD 1
Design tools for the following parts are available in LTpowerCAD:
- LTM4703
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.
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
LTM4703 |16V, 12A Step-Down μModule Regulator with Low Noise Reference
Resources
LTM4703 |16V, 12A Step-Down μModule Regulator with Low Noise Reference