L5972D STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The L5972D is a voltage-mode step-down DC-DC switching regulator from STMicroelectronics accepting 4.4V to 36V input and designed for efficient power conversion in industrial and consumer applications in an 8-pin SOP package. It features internal power switch, voltage-mode PWM control, and operates across a wide input range with nominal 12V operation. Available from stock worldwide at competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- L5972D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0500(MOQ 5)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.4V to 36V input voltage range with nominal 12V operation suits automotive, industrial, and telecom power rails
- Voltage-mode PWM control provides stable regulation with simple external compensation for reliable step-down conversion
- Compact 8-pin SOP package integrates control and power stage to minimize external component count and PCB footprint
- RoHS compliant (JESD-609 e4) switching regulator with single-function design simplifies BOM management
Applications
The L5972D is used in industrial power supplies, automotive accessories, and consumer electronics requiring efficient step-down voltage conversion from a wide input range of 4.4V to 36V down to regulated lower voltages for microcontrollers, DSPs, and peripheral circuits. Its voltage-mode PWM architecture ensures stable output under varying load conditions, making it suitable for point-of-load converters in distributed power architectures for telecom equipment and embedded systems. It is also commonly applied in motor driver pre-regulators, LED driver power stages, and battery management systems where compact and efficient 36V-rated buck converters are required.
Specifications
| Factory Lead Time | 12Weeks |
| YTEOL | 7 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 4.4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 280kHz |
| Technology | MOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| ## L5972D Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for L5972D:
suggested
suggested
Frequently Asked Questions
What is the input voltage range of the L5972D?
The L5972D accepts an input voltage from 4.4V minimum to 36V maximum, with a nominal design input of 12V. This wide range makes it suitable for automotive 12V and 24V battery systems, industrial 24V and 36V rails, and consumer power adapters, providing design flexibility across multiple market segments.
What control architecture does the L5972D use?
The L5972D uses voltage-mode PWM (Pulse Width Modulation) control, where the output voltage is sampled and compared to an internal reference to adjust the duty cycle of the internal power switch. Voltage-mode control simplifies external compensation design and provides robust regulation against input voltage and load transients.
What package does the L5972D come in and how many pins does it have?
The L5972D is housed in an 8-pin SOP (Small Outline Package) surface-mount package (JESD-30 R-PDSO-G8), which combines the PWM controller and integrated power switch in a compact footprint. This reduces the number of external components required and simplifies PCB layout for step-down converter designs.
What are typical applications for the L5972D?
The L5972D is widely used in point-of-load DC-DC converters for industrial controllers, automotive power modules, LED drivers, telecom equipment, and embedded computing boards. It is well suited for stepping down 12V or 24V system rails to the lower voltages needed by microcontrollers, FPGAs, memory devices, and communication ICs.
Is the L5972D RoHS compliant and what is the typical lead time?
Yes, the L5972D is RoHS compliant, indicated by its JESD-609 e4 code. The standard factory lead time is approximately 12 weeks, so designers should account for procurement lead time when planning production schedules and consider maintaining safety stock for high-volume or time-critical designs.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $4.0500 | $20.25 |
| 10+ | $1.6344 | $16.34 |
| 25+ | $1.4905 | $37.26 |
| 100+ | $1.3000 | $130.00 |
| 200+ | $1.0600 | $212.00 |
| 500+ | $1.0500 | $525.00 |
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