LP38513T-1.8 Texas Instruments Integrated Circuit (Other) In Stock
LP38513T-1.8 is a 1.8V fixed ultra-low dropout linear regulator with 3A output current and 450mV typical dropout voltage. It supports input voltages from 2.25V to 5.5V, ideal for portable electronics, IoT devices, and battery-powered systems requiring stable low-noise power supply.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- LP38513T-1.8 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low dropout voltage of 450mV typical at 3A output current
- Fixed 1.8V output with tight ±1% initial accuracy
- Wide input voltage range: 2.25V to 5.5V
- High output current capability up to 3A
- Low quiescent current for improved battery life in portable designs
- Available in compact SOT-223-5 package for space-constrained applications
Applications
The LP38513T-1.8 is well suited for portable consumer electronics such as smartphones, tablets, and handheld gaming devices where efficient, low-noise 1.8V power rails are essential. It is widely used in IoT modules, wireless sensor nodes, and embedded systems requiring stable regulation from Li-ion or USB power sources. Additionally, it serves as a post-regulator in multi-rail power architectures for FPGAs, DSPs, and memory interfaces.
Specifications
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.425V |
| Dropout Voltage1-Nom | 0.45V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.25V |
| JESD-30 Code | R-XZFM-T5 |
| JESD-609 Code | e0 |
| Line Regulation-Max | 0.00351% |
| Load Regulation-Max | 0.0036% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 3A |
| Output Voltage1-Max | 1.8468V |
| Output Voltage1-Min | 1.7532V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | ZIP5,.15,.17,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | RAIL |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Finish | Tin/Lead (Sn85Pb15) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | ZIG-ZAG |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2.6% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| 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 dropout voltage of the LP38513T-1.8?
The LP38513T-1.8 features an ultra-low dropout voltage of 450mV nominal (425mV maximum) at a 3A output current, making it highly efficient in applications where the input and output voltage difference is small, such as battery-powered and USB-powered systems.
What input voltage range does the LP38513T-1.8 support?
The LP38513T-1.8 accepts an input voltage range from 2.25V to 5.5V, with an absolute maximum rating of 6V. This wide range allows it to be powered directly from single-cell Li-ion batteries, USB 5V rails, or regulated bus voltages in embedded and portable designs.
What are typical applications for the LP38513T-1.8?
The LP38513T-1.8 is commonly used to power 1.8V logic rails in microcontrollers, FPGAs, and memory interfaces. It is also a strong fit for IoT sensors, handheld devices, wearables, and any system that requires a clean, stable 1.8V supply with up to 3A load capability.
What package does the LP38513T-1.8 come in?
The LP38513T-1.8 is offered in a SOT-223-5 package, which provides good thermal dissipation through its exposed tab while keeping the PCB footprint compact. This package is suitable for surface-mount assembly in space-constrained designs.
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