LTC3265
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3265

Low Noise Dual Supply with Boost and Inverting Charge Pumps

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $4.55
Features
  • Boost Charge Pump Generates 2 • VIN_P (VIN_P Range: 4.5V to 16V)
  • Inverting Charge Pump Generates –VIN_N (VIN_N Range: 4.5V to 32V)
  • Low Noise Positive LDO Post Regulator Up to 50mA
  • Low Noise Negative LDO Post Regulator Up to 50mA
  • 135μA Quiescent Current in Burst Mode® Operation with Both LDO Regulators On
  • 50kHz to 500kHz Programmable Oscillator Frequency
  • Stable with Ceramic Capacitors
  • Short-Circuit/Thermal Protection
  • Low Profile 3mm × 5mm 18-Lead DFN and Thermally Enhanced 20-Lead TSSOP Packages
Additional Details
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The LTC3265 is a low noise dual polarity output power supply including a boost charge pump, an inverting charge pump and two low noise positive and negative LDO post regulators. The boost charge pump powers the positive LDO post regulator while the inverting charge pump powers the negative LDO regulator. Each LDO can provide up to 50mA of output current. The LDO output voltages can be adjusted using external resistor dividers.

The charge pumps employ low quiescent current Burst Mode operation or low noise constant frequency mode. During Burst Mode operation, the boost charge pump regulates its output (VOUT +) to 0.94 • 2 • VIN_P while the inverting charge pump regulates its output (VOUT ) to –0.94 • VIN_N. In Burst Mode operation the LTC3265 draws only 135μA of quiescent current with both LDOs on. In constant frequency mode, the boost and inverting charge pumps produce outputs equal to 2 • VIN_P and –VIN_N respectively and operate at a fixed 500kHz or to a programmed value between 50kHz to 500kHz using an external resistor. The LTC3265 is available in low profile 3mm × 5mm × 0.75mm 18-lead DFN and thermally enhanced 20-lead TSSOP packages.

Applications

  • Low Noise Bipolar/Inverting Supplies
  • Industrial/Instrumentation Low Noise Bias Generators
Part Models 16
1ku List Price Starting From $4.55

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

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PCN

Apr 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3265EFE#PBF

PRODUCTION

LTC3265EFE#TRPBF

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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DC2235A

LTC3265 Demo Board | Dual Supply Boost/Inverting Charge Pumps with Post-Regulator LDOs, 4.5V ≤ VIN ≤ 16V, VOUT = ±5V/±15V/±24V @ 50mA

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DC2235A

LTC3265 Demo Board | Dual Supply Boost/Inverting Charge Pumps with Post-Regulator LDOs, 4.5V ≤ VIN ≤ 16V, VOUT = ±5V/±15V/±24V @ 50mA

LTC3265 Demo Board | Dual Supply Boost/Inverting Charge Pumps with Post-Regulator LDOs, 4.5V ≤ VIN ≤ 16V, VOUT = ±5V/±15V/±24V @ 50mA

Product Detail

Demonstration Circuit 2235A has boost and inverting charge pumps each with a low noise LDO post regulator featuring the LTC3265EDHC. The LTC3265 operates with an input voltage from 4.5V to 16V for the boost charge pump and from 4.5V to 32V for the inverting charge pump. The demo board provides selectable LDO± output set magnitudes of 5V, 15V, and 24V for each polarity. The demo board also provides the means to select between low power Burst Mode® operation or low noise constant-frequency mode operation, plus select an operating frequency of 500kHz, 200kHz, or 50kHz.

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AD-FMCXMWBR1-EBZ

FMC X-Microwave Compatible Level Translator and Power Supply Kit

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AD-FMCXMWBR1-EBZ

FMC X-Microwave Compatible Level Translator and Power Supply Kit

FMC X-Microwave Compatible Level Translator and Power Supply Kit

Features and Benefits

  • FMC-compatible form factor
  • Powered from FMC connector with external supply possibility
  • Provides level translation and various supply values
  • Compatible with RaspberryPi X-MW controller 

Product Detail

The AD-FMCXMWBR1-EBZ is a level translator and power supply board, with FMC-compatible form factor. It is powered from the FMC connector, with the possibility to add an external supply, for application that require higher load currents. In this case, the external supply is prioritized. 

AD-FMCXMWBR1-EBZ allows multiple level translated digital communications paths between a controller/FPGA device and X-MW blocks. The module provides multiple supply voltages with high current capability, that can be used to bias the X-MW blocks or other IC’s in a prototype design.

APPLICATIONS

  • RF and Microwave designs
  • Voltage level translation
  • General-purpose software radios
  • Radar systems
  • Point to point communication systems
  • Multiple input/multiple output (MIMO) radios
  • Automated test equipment
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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