LM2585SX-ADJ/NOPB Texas Instruments power-management (D2PAK-5) In Stock
LM2585SX-ADJ/NOPB is a 3A adjustable boost/flyback regulator with integrated switch, D2PAK-5. From $1.35 at 223+pcs. In stock, ships globally.
- Manufacturer
- Texas Instruments
- Package
- D2PAK-5
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LM2585SX-ADJ/NOPB Datasheet PDF
- Category
- power-management
- Price
- From $3.3045(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3A internal switch for boost and flyback topologies
- Adjustable output voltage via resistor divider
- 100kHz fixed switching frequency
- Soft-start reduces inrush current at power-up
- Wide input: 4V to 40V for industrial applications
Applications
Used in industrial boost converters, flyback isolated power supplies, LED drivers requiring step-up voltage, and automotive auxiliary power rails. D2PAK package provides excellent thermal performance for high-power designs.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1996-02-01 |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PSSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 7A |
| Output Voltage-Max | 60V |
| Output Voltage-Min | 1.23V |
| Output Voltage-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.6,67TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 115mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 115kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | D2PAK-5 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2585SX-ADJ/NOPB:
Switching Regulator, Current-mode, 7A, 125kHz Switching Freq-Max, BIPolar, PSSO5
Frequently Asked Questions
What topologies does LM2585 support?
The LM2585 supports boost (step-up), flyback (isolated), and SEPIC topologies. The internal 3A NPN switch handles the power conversion. Choice of topology depends on whether isolation or voltage polarity inversion is needed.
What is the output voltage range?
The ADJ version uses an external resistor divider to set output voltage from 3V to any practical level. The 1.23V internal reference feeds the feedback comparator. Higher output voltages are limited by the 40V maximum switch voltage rating.
What external components does LM2585 need?
Basic boost application requires an inductor (typically 68-330µH at 3A), Schottky diode (3A rated), input/output capacitors, and feedback resistor divider. Soft-start capacitor is optional but recommended. Total external BOM is 5-7 components.
What is the efficiency of LM2585?
Typical boost efficiency is 75-85% depending on input/output ratio and load. The 100kHz switching frequency and bipolar switch technology are less efficient than modern MOSFET-based converters, but the LM2585 remains popular for its simplicity and robustness.
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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.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $6.7700 | $67.70 |
| 25+ | $6.2900 | $157.25 |
| 56+ | $3.5731 | $200.09 |
| 73+ | $3.4388 | $251.03 |
| 91+ | $3.3045 | $300.71 |
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