UA7905CKTTR Texas Instruments Integrated Circuit (Other) In Stock
The UA7905CKTTR is a fixed -5V negative linear voltage regulator IC from Texas Instruments capable of delivering 1.5A output current. It features a 1.1V nominal dropout voltage, line regulation of 0.05% max, and supports input voltages from 7V to 25V in a 3-pin TO-263 surface-mount package.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- UA7905CKTTR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed -5V negative output linear regulation delivering up to 1.5A for dual-supply analog circuits
- Low dropout voltage of 1.1V nominal enabling efficient regulation from input voltages as low as 7V
- Excellent line regulation of 0.05% maximum ensuring stable output across varying input conditions
- 3-pin TO-263 surface-mount package (JEDEC R-PSSO-G3) for high-current SMD power regulation
Applications
The UA7905CKTTR is used in analog and mixed-signal circuits requiring a stable negative 5V supply rail, such as operational amplifier circuits, data acquisition systems, and audio processing boards. It is well-suited for dual-supply systems where both positive and negative regulated voltages are needed for proper biasing of precision analog components. Its 1.5A output capability also makes it effective in motor driver bias supplies and industrial instrumentation power stages.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1.1V |
| Input Voltage Absolute-Max | 35V |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 7V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.05% |
| Load Regulation-Max | 0.1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 1.5A |
| Output Voltage1-Max | 5.25V |
| Output Voltage1-Min | 4.75V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.55TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Voltage Tolerance-Max | 5% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
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 of the UA7905CKTTR?
The UA7905CKTTR provides a fixed negative output voltage of -5V with a maximum output current of 1.5A, making it suitable for powering analog circuits, op-amps, and other components requiring a stable negative supply rail.
What is the input voltage range of the UA7905CKTTR?
The UA7905CKTTR accepts an input voltage ranging from -7V minimum to -25V maximum (in absolute terms up to -35V transient), allowing it to be used with a variety of unregulated negative supply voltages in analog power systems.
What is the dropout voltage of the UA7905CKTTR?
The UA7905CKTTR has a nominal dropout voltage of 1.1V, meaning the input must be at least 1.1V more negative than the -5V output to maintain regulation, which allows efficient use even with lower voltage unregulated supplies.
What package is the UA7905CKTTR available in?
The UA7905CKTTR comes in a 3-pin TO-263 surface-mount package with JEDEC code R-PSSO-G3, a robust power package offering good thermal performance and suitable for high-current surface-mount regulator applications.
Is the UA7905CKTTR RoHS compliant?
Yes, the UA7905CKTTR carries a Pb-free code of 'Yes' and JESD-609 code e3, confirming that it is manufactured with lead-free materials and meets RoHS requirements for hazardous substance restrictions.
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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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