LT3592IMSE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Step-down LED driver supplying up to 500 mA of constant current with a wide input voltage range and 10:1 analog dimming ratio. Designed for LED backlighting and indicator applications, it integrates current regulation in a compact 10-pin MSOP package with worldwide distribution.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LT3592IMSE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8100(MOQ 19)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 500 mA constant LED current output with step-down topology enables efficient driving of series LED strings from high-voltage rails without an external linear regulator
- 10:1 analog dimming range via a single control voltage allows smooth brightness adjustment from full current to 50 mA without perceptible LED color shift
- Wide input voltage range accommodates automotive 12V rails, USB 5V supplies, and unregulated 24V industrial bus voltages in a single design
- Integrated current-sense resistor-less architecture (internal reference) reduces BOM parts and PCB area versus discrete buck LED driver designs
- 10-pin MSOP package provides a compact 3.0 mm × 3.0 mm footprint for space-constrained backlighting modules and portable instrument panels
Applications
The LT3592 is used in LCD backlighting for industrial HMI panels, portable instruments, and medical device displays where constant 500 mA LED current and 10:1 analog dimming must be maintained across a wide 4V to 36V input range. It also drives indicator LED strings in automotive dashboards and LED status arrays in telecom equipment where efficiency above 85% at full load reduces heat management requirements.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1664 |
| YTEOL | 10 |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Multiplexed Display Capability | NO |
| Number of Functions | 1 |
| Number of Segments | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max | 36V |
| Supply Voltage-Min | 3.6V |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What LED current does the LT3592IMSE provide and how is dimming controlled?
The LT3592IMSE delivers up to 500 mA of regulated constant current to a series LED string. Dimming is controlled by a single analog voltage applied to the CTRL pin, providing a 10:1 dimming range from 500 mA down to approximately 50 mA, suitable for automatic brightness adjustment in battery-powered LCD backlight modules driven by a DAC output.
What input voltage range does the LT3592 support and which power sources does that cover?
The LT3592 operates from input voltages spanning approximately 4V to 36V, covering USB 5V, 12V automotive batteries, 24V industrial bus rails, and unregulated wall adapters in a single circuit. This wide range eliminates the need for a pre-regulator in multi-source LED driver designs and simplifies certification for equipment operating from variable or poorly regulated supplies.
How does the LT3592's step-down topology improve efficiency compared to a linear LED driver at 12V input?
A step-down (buck) topology transfers energy inductively rather than dissipating the voltage difference across a pass element. At a 12V input driving a 3V LED string at 500 mA, the LT3592 achieves efficiency above 85%, dissipating under 270 mW of heat, whereas a linear driver would dissipate 4.5W (9V drop × 500 mA), requiring a heat sink and increasing junction temperatures by more than 40°C.
When is the LT3592 a better fit than LT3591 for an LED backlight design?
The LT3592 is preferable when the design needs a 10:1 analog dimming range via a control voltage rather than a fixed resistor-set current, or when the input voltage exceeds the LT3591's 30V absolute maximum. For industrial panels operating from a 24V to 30V rail with continuously variable ambient-light compensation, the LT3592's 36V input rating and analog CTRL pin provide capabilities the lower-voltage LT3591 cannot match.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 1000+ | $2.8100 | $2810.00 |
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