LM2586S-3.3In StockTexas Instruments
LM2586S-3.3 is a current-mode switching regulator with fixed 3.3V output, 40V max input, and 3A output capability. Features internal compensation and soft-start. From $5.13 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- LM2586S-3.3 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.1326(MOQ 90)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V regulated output for stable power delivery in embedded systems
- Wide input voltage range of 4V to 40V supporting diverse power sources
- Current-mode control for improved transient response and cycle-by-cycle current limiting
- Internal soft-start reduces inrush current during power-up
- Single-function design simplifies PCB layout and reduces external component count
- DPAK package enables efficient thermal dissipation in space-constrained designs
Applications
The LM2586S-3.3 is widely used in industrial power supplies, embedded computing boards, and automotive electronics requiring a stable 3.3V rail from higher-voltage sources. It is well-suited for point-of-load regulators in telecom equipment, motor drive control cards, and battery-powered instruments where efficiency and compact form factor are critical. Its fixed-output configuration also simplifies designs in consumer electronics and IoT edge devices that standardize on 3.3V logic.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 7A |
| Output Voltage-Max | 3.43V |
| Output Voltage-Min | 3.17V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 235 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 200kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 20 |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM2586S-3.3?
The LM2586S-3.3 accepts an input voltage from 4V minimum to 40V maximum, with a nominal operating point of 5V. This wide range makes it suitable for a variety of industrial, automotive, and consumer power supply designs.
What output voltage and current does the LM2586S-3.3 provide?
The LM2586S-3.3 provides a fixed regulated output of 3.3V, supporting output currents up to 3A. Its current-mode control architecture ensures accurate regulation even under varying load conditions.
What package does the LM2586S-3.3 come in, and why does it matter?
The LM2586S-3.3 is available in a TO-263 (DPAK) surface-mount package, which offers excellent thermal performance for high-current applications. This package makes it easy to solder onto PCBs while efficiently dissipating heat without a bulky heatsink.
What are common applications for the LM2586S-3.3?
The LM2586S-3.3 is commonly used in point-of-load regulators, industrial control boards, automotive electronics, embedded computing platforms, and IoT devices that require a reliable 3.3V power rail from a higher-voltage bus.
Are there pin-compatible or functional alternatives to the LM2586S-3.3?
Functional alternatives include other members of the LM2586 family such as the LM2586S-5.0 for 5V output, as well as switching regulators like the LM2576 series for lower-current applications. Always verify voltage, current, and package compatibility before substituting.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 90+ | $5.1326 | $461.93 |
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