LP38500TS-ADJ Texas Instruments Integrated Circuit (Other) In Stock
The LP38500TS-ADJ is a 1.5 A adjustable low-dropout linear regulator from Texas Instruments accepting inputs from 2.7 V to 5.5 V. It features a typical dropout voltage of 220 mV, 0.05%/V line regulation, and -40°C to 125°C operating temperature range. The FlexCap design in a 5-pin SOT-223 package suits portable and industrial power supply rails.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- LP38500TS-ADJ Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LP38500TS-ADJ?
- 1.5 A output current capability for powering DSPs, MCUs, and peripheral subsystems
- Low dropout voltage of 220 mV typical (375 mV max) enabling high efficiency near supply rail
- Adjustable output voltage supporting flexible rail generation from a single regulator
- Wide input range of 2.7 V to 5.5 V compatible with USB, Li-ion, and regulated 5 V sources
- Operating temperature range of -40°C to 125°C for industrial and automotive-adjacent designs
- FlexCap technology allowing output capacitor flexibility without stability concerns
What is LP38500TS-ADJ used for?
The LP38500TS-ADJ is commonly used to generate adjustable low-noise supply rails for DSPs, FPGAs, and analog front-ends in industrial instrumentation and communications equipment. Its 1.5 A current capacity and wide input range make it well-suited for post-regulation in USB-powered devices, embedded computing modules, and battery-operated systems requiring a stable, low-ripple output.
What are the specifications of LP38500TS-ADJ?
| YTEOL | 0 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.375V |
| Dropout Voltage1-Nom | 0.22V |
| JESD-30 Code | R-PSSO-G5 |
| Line Regulation-Max (%/V) | 0.05 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1.5A |
| Output Voltage1-Max | 5V |
| Output Voltage1-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.6,67TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | RAIL |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| ## LP38500TS-ADJ Alternates Showing results | Image |
| 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 LP38500TS-ADJ datasheet?
LP38500TS-ADJ Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LP38500TS-ADJ?
Compatible alternatives and drop-in replacements for LP38500TS-ADJ:
Regulator, 0.6V Min, 5.1V Max, 0.375V Dropout, CMOS, PSSO5
suggested
suggested
suggested
suggested
Frequently Asked Questions
How does the LP38500TS-ADJ dropout voltage compare to competing LDOs when powering a 3.3 V rail from a 3.6 V Li-ion cell?
With a typical dropout voltage of 220 mV and a maximum of 375 mV, the LP38500TS-ADJ can maintain a regulated 3.3 V output when the Li-ion cell discharges to as low as approximately 3.52 V. This outperforms many general-purpose LDOs with 500 mV or higher dropouts, extending useful battery runtime before the regulator drops out of regulation.
What output capacitor types are compatible with the LP38500TS-ADJ FlexCap architecture, and does it require a specific ESR range?
The LP38500TS-ADJ FlexCap design is stable with ceramic, tantalum, and aluminum electrolytic capacitors across a wide ESR range, removing the strict ESR window requirement found in older LDO topologies. Designers can use a low-ESR 10 µF ceramic capacitor for compact layouts or a larger 47 µF tantalum for applications needing lower output impedance at audio and low frequencies.
Can LP38500TS-ADJ operate across the full industrial temperature range, and what is its junction temperature limit?
Yes, the LP38500TS-ADJ is rated from -40°C to a maximum junction temperature of 125°C, covering the full industrial temperature range. At 1.5 A output current, designers must verify that the 5-pin SOT-223 package thermal resistance keeps the junction below 125°C, which typically requires attention to PCB copper area and airflow in high-current applications.
How precisely can the output voltage be set using external resistors with LP38500TS-ADJ, and what line regulation does it guarantee?
The adjustable output of the LP38500TS-ADJ is set with a standard resistor-divider to its feedback pin, and the device guarantees a maximum line regulation of 0.05%/V across its 2.7 V to 5.5 V input range. This means that for a 1 V input change, the output shifts by no more than 0.05%, which is sufficient for precision analog and mixed-signal supply rails requiring better than 1% accuracy.
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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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