L5300RPT STMicroelectronics Integrated Circuit (Other) In Stock
STMicroelectronics L5300RPT is an automotive-grade 5 V fixed low-dropout voltage regulator with 300 mA output current, 500 mV typical dropout voltage, and a wide 6 V to 28 V input range. Ultra-low 55 µA quiescent current makes it ideal for always-on automotive ECU supply rails. Available in stock worldwide with competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 4
- Lifecycle
- OBSOLETE
- Datasheet
- L5300RPT Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of L5300RPT?
- 300 mA output current at 5 V with only 500 mV typical dropout voltage minimizes power dissipation in automotive 12 V systems
- 55 µA ultra-low quiescent current extends battery standby life in always-on ECU and telematics supply rails
- Wide 6 V to 28 V input range with 40 V absolute maximum rating withstands automotive load dump transients
What is L5300RPT used for?
The L5300RPT is designed for automotive electronic control units, body control modules, and telematics units that require a stable 5 V regulated supply from a 12 V or 24 V vehicle battery bus. Its 55 µA quiescent current and 300 mA output capability make it well suited for powering microcontrollers, sensors, and CAN transceivers in always-on standby circuits where minimizing battery drain is critical. The 40 V absolute maximum input rating ensures survival through automotive load dump and cold-crank transient conditions.
What are the specifications of L5300RPT?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.5V |
| Dropout Voltage1-Nom | 1V |
| Input Voltage Absolute-Max | 40V |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 6V |
| JESD-30 Code | R-PSSO-G4 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.04% |
| Load Regulation-Max | 0.055% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 5.25V |
| Output Voltage1-Min | 4.75V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.37,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 5% |
| Package | Other |
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 L5300RPT datasheet?
L5300RPT Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for L5300RPT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output voltage and dropout characteristics does the L5300RPT deliver in automotive 12 V systems?
The L5300RPT provides a fixed 5 V output with a typical dropout voltage of only 500 mV at 300 mA load. In a 12 V automotive system, this means the regulator maintains a clean 5 V output even when the battery voltage drops to as low as 5.5 V during cold-crank events, ensuring continuous microcontroller and sensor operation.
How does the L5300RPT's 55 µA quiescent current benefit always-on ECU supply designs?
With a quiescent current of only 55 µA, the L5300RPT draws minimal battery power when the vehicle is parked with ignition off. Over a 30-day standby period, this equates to less than 40 mAh of total consumption, making it highly suitable for telematics units, keyless entry modules, and alarm systems that must remain active from the vehicle battery at all times.
Can the L5300RPT survive automotive load dump transients without external protection?
The L5300RPT has an absolute maximum input voltage rating of 40 V, providing direct tolerance against standard automotive load dump transients that can spike to 35 V to 40 V on a 12 V bus. Its 6 V to 28 V operating input range covers both 12 V and 24 V vehicle electrical systems, reducing the need for external clamp devices in most automotive ECU supply designs.
Which automotive applications are best matched to the L5300RPT's 300 mA current capability?
The L5300RPT's 300 mA at 5 V suits automotive applications with moderate current loads, including body control module microcontrollers, CAN bus transceivers, TPMS receivers, door lock actuator drivers, and dashboard sensor clusters. Its low dropout and 55 µA quiescent current make it especially effective when powering low-to-medium current loads in always-on or sleep-mode ECU circuits.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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