LT1965IMS8E-2.5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT1965IMS8E-2.5#PBF is a fixed 2.5 V automotive-grade low-dropout linear regulator from Analog Devices, delivering up to 1.1 A output current with a typical 310 mV dropout voltage. It accepts input voltages from 3.5 V to 20 V and is rated for automotive applications in a compact 8-pin MSOP with exposed pad. Ideal for precision reference supplies, automotive ECU rails, and noise-sensitive analog circuitry requiring a stable 2.5 V rail.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1965IMS8E-2.5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1100(MOQ 19)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 2.5 V output LDO with 1.1 A output current capability
- Low 310 mV typical dropout voltage for efficient operation near output voltage
- Wide 3.5 V to 20 V input voltage range
- Automotive-grade design for harsh temperature and transient environments
- 8-pin MSOP with exposed thermal pad for improved heat dissipation
- Precision fixed output ideal for ADC reference and analog circuit bias
Applications
The LT1965IMS8E-2.5#PBF is used in automotive electronic control units (ECUs) and infotainment systems that require a stable 2.5 V reference rail from a 12 V or 5 V input with high noise immunity. Its 1.1 A output and 310 mV dropout make it suitable for powering microcontrollers, analog front ends, and precision ADC reference circuits in space-constrained automotive modules. Industrial sensors and test equipment also use this LDO as a post-regulation stage to eliminate switching regulator ripple from sensitive analog measurement circuits.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1662 |
| YTEOL | 10 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.49V |
| Dropout Voltage1-Nom | 0.31V |
| Input Voltage Absolute-Max | 22V |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 3.5V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0115% |
| Load Regulation-Max | 0.033% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1.1A |
| Output Voltage1-Max | 2.575V |
| Output Voltage1-Min | 2.425V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of LT1965IMS8E-2.5#PBF at full load, and why does it matter for automotive battery-backed supplies?
The LT1965IMS8E-2.5#PBF has a typical dropout voltage of 310 mV and a maximum of 490 mV at 1.1 A output. In automotive cold-crank conditions where the battery voltage can drop to 3 V to 4 V, a low dropout below 500 mV ensures the 2.5 V output remains regulated even under worst-case supply voltage dips.
How does LT1965IMS8E-2.5#PBF compare to a switching regulator for powering a precision ADC reference in a noisy automotive environment?
Unlike switching regulators that introduce 100 kHz to several MHz switching ripple on the output rail, the LT1965IMS8E-2.5#PBF LDO provides a clean DC 2.5 V output with very low output noise, typically under 50 µV RMS. This makes it the preferred choice for driving ADC voltage references and precision op-amp bias rails in automotive ECUs where switching noise degrades measurement accuracy.
Which package does LT1965IMS8E-2.5#PBF use, and how does the exposed thermal pad help manage 1.1 A load dissipation?
The LT1965IMS8E-2.5#PBF uses an 8-pin MSOP package with an exposed copper pad on the underside, which bonds directly to the PCB ground plane through thermal vias. At 1.1 A output with a 3.5 V input delivering 2.5 V out, the power dissipation is approximately 1.1 W; the exposed pad reduces junction-to-board thermal resistance to keep the die well within its rated operating temperature.
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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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