L5980 STMicroelectronics Integrated Circuit (Small Outline No-lead) In Stock
The L5980 is a single-channel step-down (buck) switching regulator from STMicroelectronics with 700 mA output current and adjustable output voltage. It accepts 2.9 V to 18 V input and uses voltage-mode PWM control in a compact 8-pin VFQFPN package. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- L5980 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of L5980?
- 700 mA continuous output current for medium-load applications
- Wide 2.9 V to 18 V input voltage range covers automotive and industrial rails
- Adjustable output voltage via external resistor divider
- Voltage-mode PWM control for stable regulation
- Compact 8-pin VFQFPN package for minimal PCB footprint
- Nominal 12 V input optimized for standard adapter and automotive 12 V rails
What is L5980 used for?
The L5980 suits DC-DC power conversion in set-top boxes, industrial control boards, and automotive infotainment systems where a 12 V bus must be stepped down to core logic rails of 1.8 V to 5 V at up to 700 mA. Its wide 2.9 V to 18 V input range accommodates both automotive battery variations and 5 V to 12 V desktop adapter supplies. The 8-pin VFQFPN package integrates easily into high-density power-management sections with minimal external passives.
What are the specifications of L5980?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 2.9V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.6A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.11,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1000kHz |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
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 L5980 datasheet?
L5980 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for L5980?
Compatible alternatives and drop-in replacements for L5980:
Frequently Asked Questions
What is the input voltage range of the L5980 and which power supply rails does that cover in automotive designs?
The L5980 accepts input voltages from 2.9 V to 18 V, covering the standard automotive 12 V battery rail including cold-crank conditions down to approximately 6 V and load-dump transients up to 18 V. This range also accommodates 5 V USB bus inputs and industrial 12 V adapter rails, making the L5980 highly versatile across different system architectures.
How much continuous output current can the L5980 deliver and what load types does that support?
The L5980 delivers up to 700 mA of continuous output current, sufficient for powering ARM Cortex-M microcontrollers, FPGA I/O banks, LCD controllers, and multiple sensor modules simultaneously. At 700 mA and a typical 3.3 V output, the regulator can supply up to 2.31 W of power while maintaining stable voltage-mode PWM regulation.
How does the L5980 compare in board space to a traditional SOIC-8 buck regulator of similar current rating?
The L5980 comes in an 8-pin VFQFPN (QFN-style) package measuring approximately 3 mm × 3 mm, roughly 50% smaller in footprint than a traditional SOIC-8 package at the same 700 mA current rating. The exposed thermal pad on the underside also improves heat dissipation, enabling full 700 mA operation with minimal copper pours on a 2-layer PCB.
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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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