Analog Devices Inc. LTM4626 & LTM4638 µModule Regulators
Analog Devices LTM4626 and LTM4638 Step-Down µModule Regulators are complete step-down DC-DC switching mode power regulators in a tiny 6.25mm × 6.25mm BGA (Ball Grid Array) package. The µModule (microModule) package includes the switching controller, power FETs, inductor, and support components. Operating over an input voltage range of 3.1V to 20.0V, the LTM4626 and LTM4638 support an output voltage range of 0.6V to 5.5V, set by a single external resistor. The devices deliver a continuous output current of up to 12A (LTM4626) and 15A (LTM4638). Only bulk input and output capacitors are needed.
The LTM4626 and LTM4638 µModules support selectable discontinuous mode operation and output voltage tracking for supply rail sequencing. The high switching frequency and current mode control features of these devices enable a very fast transient response to line and load changes without sacrificing stability.
Fault protection features include overvoltage, overcurrent, and overtemperature protection. Integrated heat sink inductors add additional thermal protection.
Features
- 3.1V to 20V Input voltage range
- 0.6V to 5.5V Output voltage range
- Output current
- 12A LTM4626
- 15A LTM4638
- ±1.5% Maximum total dc output voltage error over line, load, and temperature
- Differential remote sensing amp
- Current mode control, fast transient response
- External frequency synchronization
- Multiphase parallel current sharing with multiple LTM4626s
- Output voltage tracking
- Selectable discontinuous mode
- Power good indicator
- Overvoltage, overcurrent, and overtemperature protection
- Inductors for heat sinks
- Package of 49-lead BGA
- Package dimensions:
- LTM4626 at 6.25mm × 6.25mm × 3.87mm
- LTM4638 at 6.25mm × 6.25mm × 5.02mm
Applications
- Telecom, datacom, networking, and industrial equipment
- Medical diagnostic equipment
- Data storage rack units and cards
- Test and debug systems
Technical Articles
- How to Select the Best Power Solution for RF Signal Chain Phase Noise Performance
Proper choice of power modules is paramount and can lead to as much as a 10dB improvement of phase noise at 10kHz offset, so knowing the correct power solution to choose is very important for optimizing your RF signal chain. - Analog Devices Design Note: 20V Input, Tiny, 6.25mm × 6.25mm, 12A and 15A µModule Regulators
Videos
Related Products
Analog Devices Inc. Reguladores µModule LTM46xx
Soluções de controle de potência System-in-package (SiP) acondicionadas em pacotes BGA ou LGA compactos para montagem em superfície.
Development Tools
Analog Devices Inc. LTM4626 Demo Boards DC2666A-A/B
Features the LTM4626 Step-Down µModule® Regulators in a tiny 6.25mm × 6.25mm BGA package.
Analog Devices Inc. LTM4626 Demo Boards DC2665x
Demonstration and evaluation boards featuring the LTM4626 or LTM4638 µModule regulator.
Analog Devices Inc. DC2665B-B Evaluation Board
Features the LTM®4638 µModule® regulator, high-performance and high-efficiency step-down regulator.
LTM4626 Application Circuit
LTM4638 Application Circuit
