LTC3600
RECOMMENDED FOR NEW DESIGNS15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator
- Part Models
- 8
- 1ku List Price
- Starting From $4.27
Overview
- Single Resistor Programmable VOUT
- ±1% ISET Accuracy
- Tight VOUT Regulation Independent of VOUT Voltage
- Easy to Parallel for Higher Current and Heat Spreading
- Wide VOUT Range 0V to VIN – 0.5V
- High Efficiency: Up to 96%
- 1.5A Output Current
- Adjustable Frequency: 200kHz to 4MHz
- 4V to 15V VIN Range
- Current Mode Operation for Excellent Line and Load Transient Response
- Zero Supply Current in Shutdown
- Available in Thermally Enhanced 12-Pin (3mm × 3mm) DFN and MSOP Packages
The LTC3600 is a high efficiency, monolithic synchronous buck regulator whose output is programmed with just one external resistor. The accurate internally generated 50μA current source on the ISET pin allows the use of a single external resistor to program an output voltage that ranges from 0V to 0.5V below VIN. The VOUT voltage feeds directly back to the error amplifier in unity gain fashion and equals the ISET voltage. The operating supply voltage range is 4V to 15V, making it suitable for dual lithium-ion battery and 5V or 12V input point-of-load power supply applications.
The operating frequency is synchronizable to an external clock or programmable from 200kHz to 4MHz with an external resistor. High switching frequency allows the use of small surface mount inductors. The unique constant on-time architecture is ideal for operating at high frequency in high step-down ratio applications that also demand fast load transient response.
Applications
- Voltage Tracking Supplies
- Point-of-Load Power Supplies
- Portable Instruments
- Distributed Power Systems
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Video 1
Brochure 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 |
|---|---|---|---|
| LTC3600EDD#PBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3600EDD#TRPBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3600EMSE#PBF | 12-Lead MSOP w/ EP | ||
| LTC3600EMSE#TRPBF | 12-Lead MSOP w/ EP | ||
| LTC3600IDD#PBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3600IDD#TRPBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3600IMSE#PBF | 12-Lead MSOP w/ EP | ||
| LTC3600IMSE#TRPBF | 12-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LTC3600EMSE#PBF | PRODUCTION | |
| LTC3600EMSE#TRPBF | PRODUCTION | |
| LTC3600IMSE#PBF | PRODUCTION | |
| LTC3600IMSE#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC3600EMSE#PBF | PRODUCTION | |
| LTC3600EMSE#TRPBF | PRODUCTION | |
| LTC3600IMSE#PBF | PRODUCTION | |
| LTC3600IMSE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
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| Temperature Sensors 1 | ||
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| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC3623 | RECOMMENDED FOR NEW DESIGNS | 15V, ±5A Rail-to-Rail Synchronous Buck Regulator |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC3600
LTpowerCAD 1
Design tools for the following parts are available in LTpowerCAD:
- LTC3600
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.
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
Evaluation Kits
LTC3600EDD Demo Board | 4.5V to 15V Input, Adjustable Output with 1.5A IOUT
Resources
Reference Designs
Part Used
Part Used
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