SPX1117M3-L-5-0 EXAR Power Supply (SOT223 (3-Pin)) In Stock
EXAR SPX1117M3-L-5-0 is a fixed 5 V, 800 mA low-dropout linear regulator in a 3-pin SOT-223 package. It accepts input voltages from 2.6 V to 15 V and maintains ±1% output accuracy, making it suitable for precision 5 V rail generation in embedded and consumer electronics designs.
- Manufacturer
- EXAR
- Package
- SOT223 (3-Pin)
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- SPX1117M3-L-5-0 Datasheet PDF
- Category
- Power Supply
- Price
- From $0.1988(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SPX1117M3-L-5-0?
- Fixed 5 V output with ±1% regulation accuracy across load and temperature
- 800 mA maximum output current with low dropout voltage for efficient linear regulation
- Wide input voltage range: 2.6 V to 15 V accommodates diverse supply rails
- 3-pin SOT-223 package with exposed thermal pad for enhanced heat dissipation on PCB
- Peak reflow temperature of 260°C with matte tin finish for lead-free assembly compatibility
What is SPX1117M3-L-5-0 used for?
The SPX1117M3-L-5-0 is widely used to generate a stable 5 V supply rail for microcontrollers, FPGAs, sensors, and USB peripherals in embedded computing and consumer electronics. It is also suitable for industrial control boards requiring a compact, low-noise post-regulation stage downstream of a switching power supply.
What are the specifications of SPX1117M3-L-5-0?
| YTEOL | 0 |
| JESD-609 Code | e3 |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Terminal Finish | MATTE TIN |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the SPX1117M3-L-5-0 datasheet?
SPX1117M3-L-5-0 Datasheet DownloadOfficial datasheet from EXAR
What are equivalent replacements for SPX1117M3-L-5-0?
Compatible alternatives and drop-in replacements for SPX1117M3-L-5-0:
Frequently Asked Questions
What is the minimum input voltage needed to maintain a regulated 5 V output with SPX1117M3-L-5-0 at full load?
The SPX1117M3-L-5-0 requires an input voltage of at least 2.6 V above the 5 V output at full 800 mA load, so a minimum supply of approximately 6.3 V to 7 V is recommended to ensure the dropout specification is met and the output stays within its ±1% accuracy band.
How does the SOT-223 package help manage thermal dissipation when SPX1117M3-L-5-0 is used at high output current?
The 3-pin SOT-223 package includes a large exposed metal tab that can be soldered directly to a PCB copper pour, providing a thermal path rated for junction-to-board thermal resistance around 22°C/W. At 800 mA output, the power dissipation is (Vin − 5 V) × 0.8 A, so board copper area should be sized accordingly to keep junction temperature below 125°C.
When would a designer choose SPX1117M3-L-5-0 over a switching regulator for a 5 V rail?
SPX1117M3-L-5-0 is preferred over a switching regulator when output ripple below 50 µV RMS and fast transient response are critical, such as in analog sensor conditioning, audio circuits, or RF front-end supplies. The LDO's simplicity also reduces BOM cost since no inductor or large bulk capacitors are needed.
Is SPX1117M3-L-5-0 compatible with lead-free soldering processes used in RoHS-compliant manufacturing?
Yes. SPX1117M3-L-5-0 has a matte tin terminal finish and is rated for peak reflow at 260°C for up to 40 seconds, which is fully compatible with standard lead-free SAC305 solder paste reflow profiles used in RoHS-compliant SMT assembly lines.
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Why Buy from FindMyChip
About EXAR
EXAR is a leading electronic component manufacturer. FindMyChip sources EXAR ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from EXAR
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9940 | $0.99 |
| 113+ | $0.2982 | $33.70 |
| 1342+ | $0.1988 | $266.79 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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