Analog Devices Inc. LTM4703 12A Step-Down Silent Switcher 3 μModules®
Analog Devices Inc. LTM4703 12A Step-Down Silent Switcher 3 μModules® are housed in a 6.25mm × 6.25mm × 5.07mm BGA package. The LTM4703 regulators integrate the switching controller, power MOSFETs, an inductor, and support components. An input voltage range of 3V to 16V provides an output range of 0.3V to 6V, adjustable with a single resistor. The output noise remains nearly constant across the range, and only bulk input/output capacitors are required for completion. The Silent Switcher 3 architecture, with internal hot loop bypass capacitors, ensures low EMI and high efficiency. The ultra-low noise design minimizes low-frequency output noise, making this Analog Devices series ideal for high-current, noise-sensitive applications. The LTM4703 is RoHS compliant.
Features
- Complete solution in <1cm2 (single-sided PCB) or 0.5cm2 (dual-sided PCB)
- Low noise Silent Switcher 3 architecture
- Ultra-low EMI emissions
- Ultra-low RMS noise (10Hz to 100kHz): 8μVRMS
- ±1.5% maximum total DC output voltage error over line, load, and temperature
- 3V to 16V input voltage range
- 0.3V to 6V output voltage range
- 12A maximum continuous output current
- 300kHz to 3MHz adjustable and synchronizable frequency range
- 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
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
Videos
TYPICAL APPLICATION
Additional Resources
Evaluation Board
Analog Devices Inc. EVAL-LTM4703-AZ Evaluation Board
DC-DC step-down switching converter featuring the LTM®4703 μModule® regulator.
Published: 2024-09-23
| Updated: 2025-08-06