LTM4693
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LTM4693

Ultrathin Low VIN, 2A Buck-Boost μModule Regulator

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LTspice LTM4693 - ?Module Regulators Download 1.41 KB LTspice LTM4693 Demo Circuit - 2A Buck-Boost uModule Regulator (2.6-5.5V to 3.3V @2A) Download 5.63 KB
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1ku List Price Starting From $4.15
Features
  • Wide Input Voltage Range: 2.6V to 5.5V
  • Adjustable Output Voltage Range: 1.8V to 5.5V
  • 2A of Continuous Output Current with VIN ≥ VOUT (Buck Mode and Buck-Boost Mode); Minimum 1A Continuous Output Current with VIN < VOUT (Boost Mode).
  • Low Ripple Buck-Boost Architecture
  • Programmable Soft-Start and VIN UVLO
  • Burst Mode IQ 15μA for High Efficiency at Light Loads
  • Ultrathin, Small Surface Mount Footprint
  • 3.5mm × 4mm × 1.25mm LGA Package
Additional Details
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The LTM4693 is an ultrathin, highly efficient, 2A buck-boost μModule® DC/DC converter that operates from input voltages above, below or equal to the output voltage. Included in the package are the switching controller, power MOSFETs, inductor and support components. The LTM4693’s advanced topology provides a continuous transfer through all operating modes. VIN operation from 2.6V to 5.5V covers a wide variety of power sources including typical 3.3V and 5V. Output voltage ranging from 1.8V to 5.5V is set by an external resistor. Only a few external components are needed for a typical application.

Selectable Burst Mode® operation reduces quiescent current to 15μA, ensuring high efficiency across the entire load range. To optimize applications for highest efficiency, the switching frequency can be programmed between 1MHz to 4MHz or synchronized to an external clock for noise sensitive circuits.

LTM4693 is available in ultrathin, 3.5mm × 4mm ×1.25mm LGA Package. The LTM4693 is Pb-free and RoHS compliant.

APPLICATIONS

  • Telecom, Datacom (Optical Modules) and Industrial Equipment
  • Medical and Industrial Instruments
  • Wireless RF Transmitter
  • Battery Powered System
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file View Data Sheet (Rev.0)
Documentation View All Documentation
LTspice LTM4693 - ?Module Regulators Download 1.41 KB LTspice LTM4693 Demo Circuit - 2A Buck-Boost uModule Regulator (2.6-5.5V to 3.3V @2A) Download 5.63 KB
Part Models 2
1ku List Price Starting From $4.15
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LTM4693

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UPDATED 09/14/2021
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LTM4693: Ultrathin Low VIN, 2A Buck-Boost μModule Regulator Data Sheet (Rev.0)

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UPDATED 09/14/2021
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LTM4693: 超薄型低VINの2A昇降圧 µModuleレギュレータ データシート

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User Guide

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UPDATED 09/20/2021
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DC3016A - Demo Manual (Rev.0) redirect icon

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UPDATED 06/15/2023
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Documentation

Solutions Bulletin & Brochure 1

Industrial Battery-Powered Solutions

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Power You Can Trust: Achieving Efficient Battery-Powered Solutions

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2021-12-01

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LTM4693 - Ultrathin Low V<sub>in</sub> 2A Buck-Boost μModule Regulator

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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. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTM4693EV#PBF 25-Lead LGA (3.5mm × 4mm × 1.25mm) external-link
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LTM4693IV#PBF 25-Lead LGA (3.5mm × 4mm × 1.25mm) external-link
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Software & Part Ecosystem

Evaluation Kits 1

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DC3016A

LTM4693 | 2.6V - 5.5V Input to 1.8V - 5V Output, Ultrathin 2A Buck-Boost μModule Regulator

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DC3016A

LTM4693 | 2.6V - 5.5V Input to 1.8V - 5V Output, Ultrathin 2A Buck-Boost μModule Regulator

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DC3016A
LTM4693 | 2.6V - 5.5V Input to 1.8V - 5V Output, Ultrathin 2A Buck-Boost μModule Regulator
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Product Detail

Demonstration circuit DC3016A is a buck-boost power supply featuring the LTM4693, ultrathin, highly efficient, 2A buck-boost μModule® regulator. The LTM4693 regulates an output voltage above, below, or equal to the input voltage. This demonstration circuit is designed to have an input voltage from 2.6V to 5.5V with selectable 1.8V, 2.5V, 3.3V, and 5V output voltage up to 2A load. Derating may be necessary for specific VIN, VOUT, and thermal conditions.

This demo board includes a mode selector that allows the converter to run in CCM or Burst Mode® operation. Synchronization to an external clock is also possible. The switching frequency can be adjusted from 1MHz to 4MHz by a resistor. And the soft-start period is programmable by an external capacitor. The LTM4693 data sheet gives a complete description of these functions, operation, and application information. The data sheet must be read in conjunction with this quick start guide for demo circuit 3016A.

Resources

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DC3016A - Demo Manual (Rev.0) Download

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DC3016A - Design Files Download

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DC3016A - Schematic Download

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Evaluation Kits1

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DC3016A

LTM4693 | 2.6V - 5.5V Input to 1.8V - 5V Output, Ultrathin 2A Buck-Boost μModule Regulator

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LTM4693 - ?Module Regulators Download

1.41 K

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LTM4693 Demo Circuit - 2A Buck-Boost uModule Regulator (2.6-5.5V to 3.3V @2A) Download

5.63 K

Reference Designs 1

Figure 1. CN0551 Simplified Block Diagram

CN0551

USB-Powered, 433.92 MHz RF Power Amplifier with Overtemperature Management

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CN0551

USB-Powered, 433.92 MHz RF Power Amplifier with Overtemperature Management

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USB-Powered, 433.92 MHz RF Power Amplifier with Overtemperature Management

Features and Benefits

  • +35 dB Gain
  • 433 MHz ISM Band Optimized
  • 50 Ohm Input and Output Impedance Matched
  • Overtemperature Monitoring
  • Automatic Thermal Shutoff & Turn on
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Reference Designs1

Figure 1. CN0551 Simplified Block Diagram

CN0551

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