LTM4693
RECOMMENDED FOR NEW DESIGNSUltrathin Low VIN, 2A Buck-Boost μModule Regulator
- Part Models
- 2
- 1ku List Price
- Starting From $5.25
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Informational 1
Video 1
Brochure 2
Book & eBook 1
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) | ||
| LTM4693IV#PBF | 25-Lead LGA (3.5mm × 4mm × 1.25mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 16, 2025 - 25_0052 LTM4693 - Die Thickness and Inductor Change |
||
| LTM4693EV#PBF | PRODUCTION | |
| LTM4693IV#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice 1
Models for the following parts are available in LTspice:
- LTM4693
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LTM4693
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.
Evaluation Kits
Reference Designs
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