STMicroelectronics L4973D5.1 DC DC Switching Regulators
Buck Switching Regulator IC Positive Adjustable (Fixed) 5.1V (5.1V) 1 Output 3.5A 20-SOIC (0.295", 7.50mm Width)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
L4973D5.1
Detailed Description
IC REG BUCK ADJ/5.1V 3.5A 20SO
Package
20-SOIC (0.295", 7.50mm Width)
Key Features
Package / Case: 20-SOIC (0.295", 7.50mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
L4973D5.1 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics L4973D5.1 DC DC Switching Regulators technical specifications.
General
Package / Case
20-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C (TJ)
Lifecycle Status
Active
Output Type
Adjustable (Fixed)
Max Input Voltage
55V
Output Current
3.5A
Switching Frequency
100kHz ~ 300kHz
Number of Outputs
1
Topology
Buck
Alternate Parts Comparison (L4973D5.1 vs L4973D3.3-013TR vs L4973D5.1-013TR vs L4963D013TR)
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-SOIC | 20-SOIC | 20-SOIC | 20-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Switching Frequency | 100kHz ~ 300kHz | 100kHz ~ 300kHz | 100kHz ~ 300kHz | 42kHz ~ 83kHz |
| Function | Step-Down | Step-Down | Step-Down | Step-Down |
| Max Input Voltage | 55V | 55V | 55V | 46V |
| Min Input Voltage | 8V | 8V | 8V | 9V |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 3.5A | 3.5A | 3.5A | 1.5A |
| Output Type | Adjustable (Fixed) | Adjustable (Fixed) | Adjustable (Fixed) | Adjustable |
| Output Voltage | 5.1V (5.1V) | 0.5V (3.3V) | 5.1V (5.1V) | 5.1V |
| 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.
L4973D5.1-013TRSTMicroelectronicsBuck Switching Regulator IC Positive Adjustable (Fixed) 5.1V (5.1V) 1 Output 3.5A 20-SOIC (0.295", 7.50mm Width)
L4963D013TRSTMicroelectronicsBuck Switching Regulator IC Positive Adjustable 5.1V 1 Output 1.5A 20-SOIC (0.295", 7.50mm Width)
L4972AD013TRSTMicroelectronicsBuck Switching Regulator IC Positive Adjustable 5.1V 1 Output 2A 20-SOIC (0.295", 7.50mm Width)