STMicroelectronics L4974A DC DC Switching Regulators
Buck Switching Regulator IC Positive Adjustable 5.1V 1 Output 3.5A 20-DIP (0.300", 7.62mm)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
L4974A
Detailed Description
IC REG BUCK ADJ 3.5A 20DIP
Package
20-DIP (0.300", 7.62mm)
Key Features
Package / Case: 20-DIP (0.300", 7.62mm); Mounting Type: Through Hole
Lifecycle Status
Last Time Buy
RoHS State
RoHS Compliant
Datasheet
L4974A Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics L4974A DC DC Switching Regulators technical specifications.
General
Package / Case
20-DIP
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 150°C (TJ)
Lifecycle Status
Last Time Buy
Output Type
Adjustable
Max Input Voltage
50V
Output Current
3.5A
Switching Frequency
100kHz ~ 200kHz
Number of Outputs
1
Topology
Buck
Alternate Parts Comparison (L4974A vs L4972A vs L7987TR vs STBB1-APUR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-DIP | 20-DIP | 16-TSSOP | 10-VFDFN Exposed Pad |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 85°C (TJ) |
| Switching Frequency | 100kHz ~ 200kHz | 100kHz ~ 200kHz | 250kHz ~ 1.5MHz | 1.5MHz |
| Function | Step-Down | Step-Down | Step-Down | Step-Up/Step-Down |
| Max Input Voltage | 50V | 50V | 61V | 5.5V |
| Min Input Voltage | 15V | 15V | 4.5V | 2V |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 3.5A | 2A | 3A | 1.6A (Switch) |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable |
| Output Voltage | 5.1V | 5.1V | 0.8V | 1.2V |
| Action |
More Parts in DC DC Switching Regulators
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
L4972ASTMicroelectronicsBuck Switching Regulator IC Positive Adjustable 5.1V 1 Output 2A 20-DIP (0.300", 7.62mm)