REG103GA-3.3Alternatives & Equivalent Parts
About REG103GA-3.3
REG103GA-3.3 is a Integrated Circuit component manufactured by Texas Instruments. It comes in a SOT223 (5-Pin) package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | REG103GA-3.3Source | REG103GA-5 | REG103UA-3 | TPA122D |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | SOT223 (5-Pin) | — | Small Outline Packages | Small Outline Packages |
| Pin Count | 6 | — | 8 | 8 |
| Temperature Range | -40.0°C ~ 85.0°C | — | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $3.1275 | $3.8900 | $2.1100 | $0.7440 |
| Electrical Parameters | ||||
| Pbfree Code | Yes | — | — | Yes |
| YTEOL | 15 | — | 0 | 15 |
| Adjustability | FIXED | — | FIXED | — |
| Dropout Voltage1-Max | 0.2 V | — | 0.2 V | — |
| Dropout Voltage1-Nom | 0.115 V | — | 0.115 V | — |
| Input Voltage Absolute-Max | 16 V | — | 16 V | — |
| Input Voltage-Max | 15 V | — | 15 V | — |
| Input Voltage-Min | 3.5 V | — | 3.2 V | — |
| JESD-30 Code | R-PDSO-G6 | — | R-PDSO-G8 | R-PDSO-G8 |
| JESD-609 Code | e4 | — | e4 | e4 |
| Line Regulation-Max | 0.115% | — | 0.105% | — |
| Load Regulation-Max | 0.115% | — | 0.105% | — |
| Number of Functions | 1 | — | 1 | 1 |
| Number of Outputs | 1 | — | 1 | — |
| Operating Temperature TJ-Max | 125 °C | — | 125 °C | — |
| Operating Temperature TJ-Min | -55 °C | — | -55 °C | — |
| Output Current1-Max | 0.5 A | — | 0.5 A | — |
| Output Voltage1-Max | 3.366 V | — | 3.06 V | — |
| Output Voltage1-Min | 3.234 V | — | 2.94 V | — |
| Output Voltage1-Nom | 3.3 V | — | 3 V | — |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-5 | — | SOP8,.25 | SOP8,.25 |
| Package Shape | RECTANGULAR | — | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | — | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TUBE | — | RAIL | — |
| Peak Reflow Temperature (Cel) | 260 | — | 260 | 260 |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — |
| Surface Mount | YES | — | YES | YES |
| Technology | NMOS | — | NMOS | CMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | — | NICKEL PALLADIUM GOLD | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING | — | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | — | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | — | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | 30 | 30 |
| Voltage Tolerance-Max | 2.8% | — | 2.8% | — |
| ## REG103GA-3.3 Alternates Showing results | Image | — | — | — |
| ## REG103UA-3 Alternates Showing results | — | — | Image | — |
| Bandwidth-Nom | — | — | — | 20 kHz |
| Consumer IC Type | — | — | — | AUDIO AMPLIFIER |
| Harmonic Distortion | — | — | — | 0.1% |
| Number of Channels | — | — | — | 2 |
| Output Power-Nom | — | — | — | 0.15 W |
| Supply Current-Max | — | — | — | 3 mA |
| Supply Voltage-Max (Vsup) | — | — | — | 5.5 V |
| Supply Voltage-Min (Vsup) | — | — | — | 2.5 V |
| Temperature Grade | — | — | — | INDUSTRIAL |
| ## TPA122D Alternates Showing results | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for REG103GA-3.3 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating REG103GA-3.3 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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Request Alternatives for REG103GA-3.3FAQ
What is equivalent to REG103GA-3.3?
Known equivalents for REG103GA-3.3 include REG103GA-5, REG103UA-3, TPA122D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of REG103GA-3.3?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify REG103GA-3.3 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.