New Content (1)
Features and Benefits
- Dual LDOs Powered by an Integrated Switching Step-Down Regulator
- Low Noise Silent Switcher® Architecture with an Integrated EMI Noise Shield
- CISPR22 Class B and CISPR25 Class 5 Compliant
- Ultralow Output RMS Noise: <1μVRMS (10Hz to 100kHz)
- Ultralow Output Spot Noise: 2nV/√Hz at 10kHz
- Ultrahigh PSRR: 80dB at 100kHz
- Wide Input Voltage: 3.5V to 40V
- Wide Output Voltage: 0V to 8V
- Dual 500mA Continuous Current at TA = 85°C
- Voltage Tracking Function to Minimize Power Loss
- 100μA SET Pin Current with ±1% Initial Accuracy
- Selectable Switching Frequency: 200kHz to 2.2MHz
- External Synchronization
- Programmable Power Good
- Parallelable for Lower Noise and Higher Current
- 9mm × 6.25mm × 3.32mm BGA
The LTM8080 is a 40VIN, dual 500mA or single 1A ultralow noise, ultrahigh PSRR μModule® regulator. LTM8080 has cascaded architecture which contains a 40VIN step-down Silent Switcher regulator with an integrated EMI noise shield followed by dual high-performance low dropout linear regulators. The dual LDOs feature ADI’s ultralow noise and ultrahigh PSRR architecture for powering noise-sensitive applications. The LTM8080 is an integrated solution comprised of a switcher and LDOs, which offers both advantages while maintaining a small size and significantly reduced PCB layout sensitivity.
The package includes the controllers, power switches, inductors, and support components. In addition, the LTM8080 has a built-in voltage tracking function that automatically sets VBUS to either 2.5V nominal or 1V higher than VOUT1, whichever is greater, to achieve superior noise performance and minimize power dissipation.
The LTM8080 is packaged in a thermally enhanced, compact (9mm × 6.25mm × 3.32mm) over-molded Ball Grid Array (BGA) package suitable for automated assembly by standard surface mount equipment and is RoHS compliant.
- RF Power Supplies: PLLs, VCOs, Mixers, LNAs
- Very Low Noise Instrumentation
- High Speed/High Precision Data Converters
- Medical Applications: Imaging, Diagnostics
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Demonstration circuit 3071A features the LTM8080 μModule® regulator, a complete, low input noise, ultrahigh PSRR solution with an intermediate power bus and dual output 0.5A LDO regulators, in a thermally enhanced, compact 9mm × 6.25mm × 3.32mm BGA package. DC3071A has a wide operating input range of 4V to 40V. Each of the two outputs is an adjustable 3.3V/0.5A. The operating output range is a wide 0V to 8V. DC3071A also allows for the LDOs to be paralleled up to 1A rail load current.
The LTM8080 includes voltage tracking functionality, external frequency synchronization, and low input noise compliance with CISPR22 Class B. The built-in voltage tracking function automatically sets VBUS to either 2.5V nominal or 1V higher than VOUT1, whichever is greater, to achieve the best noise performance and minimize power dissipation. External frequency synchronization is available through the SYNC pin. It also features the power good feedback function for an adjustable power good threshold.
The μModule regulator targets applications that require a complete switcher and LDO regulators solution with configurable output channels, power good protection features, and ultralow noise performance.
Documentation & Resources
DC3071A - Demo Manual (Rev. 0)12/23/2022
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.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.