LP3893ET-1.5 Texas Instruments Integrated Circuit (Other) In Stock
LP3893ET-1.5 is a fixed 1.5 V LDO linear regulator capable of sourcing up to 3 A with a typical dropout voltage of only 0.27 V. Input voltage range spans 2.5 V to 5.5 V, making it suitable for point-of-load regulation from 3.3 V rails. Available worldwide in SMD package for portable and embedded power supply designs.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- LP3893ET-1.5 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LP3893ET-1.5?
- High-current 3 A output with only 0.27 V typical dropout voltage for efficient low-headroom regulation
- Fixed 1.5 V output and 2.5 V to 5.5 V input range directly compatible with 3.3 V system rails
- Outstanding 0.00045% line regulation ensuring stable 1.5 V supply under varying load and input conditions
What is LP3893ET-1.5 used for?
LP3893ET-1.5 is used as a point-of-load regulator supplying 1.5 V at up to 3 A for FPGAs, memory modules, and DSP core voltage rails. Its low 0.27 V dropout voltage makes it efficient when stepping down from a 3.3 V bus without a switching converter. The device is widely deployed in embedded computing boards, wireless access points, and industrial control systems.
What are the specifications of LP3893ET-1.5?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 0.27V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.5V |
| JESD-30 Code | R-XZFM-T5 |
| Line Regulation-Max | 0.00045% |
| 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 | 1.545V |
| Output Voltage1-Min | 1.455V |
| Output Voltage1-Nom | 1.5V |
| Package Body Material | UNSPECIFIED |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | ZIG-ZAG |
| Voltage Tolerance-Max | 3% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LP3893ET-1.5 datasheet?
LP3893ET-1.5 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LP3893ET-1.5?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What maximum output current can LP3893ET-1.5 deliver and what is its dropout voltage?
LP3893ET-1.5 delivers up to 3 A continuous output current with a typical dropout voltage of only 0.27 V, enabling efficient 1.5 V regulation from a 2.5 V or higher supply without excessive power dissipation.
What input voltage range does LP3893ET-1.5 support for powering from a 3.3 V system bus?
LP3893ET-1.5 accepts input voltages from 2.5 V to 5.5 V, making it directly compatible with 3.3 V and 5 V system buses to generate a regulated 1.5 V core voltage for FPGAs and memory devices.
How does LP3893ET-1.5 compare to a switching regulator for generating 1.5 V in noise-sensitive circuits?
LP3893ET-1.5 is a linear LDO producing a clean 1.5 V output with 0.00045% line regulation and no switching noise, making it preferable over buck converters for powering ADC reference rails, RF circuits, and FPGA core voltages in noise-sensitive PCB layouts.
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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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