STMicroelectronics L4978 DC DC Switching Regulators
Buck Switching Regulator IC Positive Adjustable 3.3V 1 Output 2A 8-DIP (0.300", 7.62mm)
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
L4978
Detailed Description
IC REG BUCK ADJUSTABLE 2A 8DIP
Package
8-DIP (0.300", 7.62mm)
Key Features
Package / Case: 8-DIP (0.300", 7.62mm); Mounting Type: Through Hole
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
L4978 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics L4978 DC DC Switching Regulators technical specifications.
General
Package / Case
8-DIP
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 150°C (TJ)
Lifecycle Status
Active
Output Type
Adjustable
Max Input Voltage
55V
Output Current
2A
Switching Frequency
100kHz ~ 300kHz
Number of Outputs
1
Topology
Buck
Alternate Parts Comparison (L4978 vs MC34063EBN vs ST662ABN vs ST763ACN)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 8-DIP | 8-DIP | 8-DIP | 8-DIP |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TJ) |
| Switching Frequency | 100kHz ~ 300kHz | 33kHz | 400kHz | 200kHz |
| Max Input Voltage | 55V | 40V | 5.5V | 11V |
| Min Input Voltage | 8V | 3V | 4.5V | 3.3V |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive or Negative | Positive | Positive |
| Output Current | 2A | 1.5A (Switch) | 30mA | 500mA |
| Output Type | Adjustable | Adjustable | Fixed | Fixed |
| Output Voltage | 3.3V | 1.25V | 12V | 3.3V |
| Synchronous Rectifier | No | No | No | No |
| 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.
MC34063ACNSTMicroelectronicsBuck, Boost Switching Regulator IC Positive or Negative Adjustable 1.25V 1 Output 1.5A (Switch) 8-DIP (0.300", 7.62mm)