LTM8080
Info : RECOMMENDED FOR NEW DESIGNS
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LTM8080

40VIN, Dual 500mA or Single 1A Ultralow Noise, Ultrahigh PSRR μModule Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $12.83
Features
  • 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
Additional Details
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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.

APPLICATIONS

  • RF Power Supplies: PLLs, VCOs, Mixers, LNAs
  • Very Low Noise Instrumentation
  • High Speed/High Precision Data Converters
  • Medical Applications: Imaging, Diagnostics

Protected by U.S. patents, including 11258356B2.

Part Models 4
1ku List Price Starting From $12.83

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTM8080EY#PBF
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LTM8080MPY
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC3071A

LTM8080EY | 40VIN, Dual 500mA or Single 1A Ultralow Noise, Ultrahigh PSRR μModule Regulator

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DC3071A

LTM8080EY | 40VIN, Dual 500mA or Single 1A Ultralow Noise, Ultrahigh PSRR μModule Regulator

LTM8080EY | 40VIN, Dual 500mA or Single 1A Ultralow Noise, Ultrahigh PSRR μModule Regulator

Product Detail

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.

Tools & Simulations

Tools & Simulations 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.

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