LP2985IM5-4.5/NOPBIn StockTexas Instruments
LP2985IM5-4.5/NOPB is a 150mA ultra-low dropout LDO linear voltage regulator by Texas Instruments with a fixed 4.5V output. Key specs: 150mA output current, 250mV dropout voltage, SOT-23-5 package. From $0.33, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LP2985IM5-4.5/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3256(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 250mV dropout voltage at 150mA for high-efficiency operation
- Fixed 4.5V output voltage with ±1% accuracy over temperature
- Low quiescent current of 120µA ideal for battery-powered applications
- Compact SOT-23-5 package for space-constrained designs
- Built-in thermal shutdown and current limiting for robust protection
Applications
The LP2985IM5-4.5/NOPB is ideal for portable and battery-powered electronics where efficient voltage regulation is critical, including smartphones, tablets, and wearable devices. It is widely used in IoT sensor nodes, handheld instruments, and wireless modules requiring a stable 4.5V rail with minimal power loss. Its tiny SOT-23-5 footprint also makes it suitable for space-constrained PCB designs in industrial and consumer applications.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.575V |
| Dropout Voltage1-Nom | 0.28V |
| Input Voltage Absolute-Max | 16V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 5.5V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.01512% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 4.68V |
| Output Voltage1-Min | 4.32V |
| Output Voltage1-Nom | 4.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.953mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 4% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and current rating of the LP2985IM5-4.5/NOPB?
The LP2985IM5-4.5/NOPB provides a fixed 4.5V output voltage with a maximum output current of 150mA. The output voltage accuracy is ±1% over the full operating temperature range of -40°C to +125°C, making it suitable for precision power rails.
What is the dropout voltage of the LP2985IM5-4.5/NOPB?
The LP2985IM5-4.5/NOPB features an ultra-low dropout voltage of approximately 250mV at the full 150mA load current. This low dropout characteristic allows the regulator to maintain regulation with an input voltage as low as 4.75V, which is advantageous in battery-powered systems near end-of-life.
What package does the LP2985IM5-4.5/NOPB come in and what are its dimensions?
The LP2985IM5-4.5/NOPB is available in a SOT-23-5 (5-pin small-outline transistor) package. This compact surface-mount package measures approximately 2.9mm x 1.6mm, making it well suited for space-constrained PCB designs in portable consumer and industrial electronics.
What are typical applications for the LP2985IM5-4.5/NOPB?
This LDO regulator is commonly used in battery-powered devices such as smartphones, wearables, and IoT sensors, as well as in wireless communication modules, handheld test instruments, and embedded microcontroller supply rails requiring a regulated 4.5V output with low quiescent current of 120µA.
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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 |
|---|---|---|
| 1+ | $1.8000 | $1.80 |
| 15+ | $1.0800 | $16.20 |
| 57+ | $0.9000 | $51.30 |
| 7000+ | $0.3371 | $2359.91 |
| 10000+ | $0.3335 | $3334.80 |
| 25000+ | $0.3256 | $8140.50 |
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