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Exact specifications should be obtained from the product data sheet.
| Manufacturer Product Number | LM78S40J |
| Manufacturer | National Semiconductor |
| NavitasChip Part Number | NAVI-12119672 |
| Description | IC REG BUCK BST ADJ 1.5A 16CDIP |
| Spec | 16-CDIP (0.300", 7.62mm) |
| Package | Bulk |
| Datasheet | Datasheet |
Product Attributes
| Type | Description |
|---|---|
| Category | Voltage Regulators - DC DC Switching Regulators |
| Manufacturer | National Semiconductor |
| Package | Bulk |
| Product Status | Active |
| Function | Step-Up, Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Boost, Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 40V |
| Current - Output | 1.5A (Switch) |
| Frequency - Switching | 100Hz ~ 100kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -55°C ~ 125°C |
| Mounting Type | Through Hole |
| Supplier Device Package | 16-CDIP |
| Part Status | Active |
Documents & Media
| Resource Type | Link |
|---|---|
| Datasheet | National Semiconductor LM78S40J Datasheet |
| Product Image | View Large Image |
Environmental & Export Classifications
| Attribute | Description |
|---|---|
| RoHS Status | |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
Product Description
The LM78S40J is a DC-DC Switching Voltage Regulator manufactured by National Semiconductor (NSC). Integrated Circuit Regulator Buck Bst Adjustable 1.5a 16cdip, housed in a compact 16-CDIP package.
Key Technical Specifications
- Output Type: Adjustable
- Operating Temperature: -55°C ~ 125°C
- Mounting: Through Hole
- Package: 16-CDIP (0.300", 7.62mm)
- Device Package: 16-CDIP
Packaging: factory Bulk or Custom Quantity · ESD-shielded, vacuum-sealed MBB to MSL standards.
Fulfillment: MPN and Date Code verified on inbound · datasheet and compliance documents available · RFQ answered within 24 hours.
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Stock quantities are dynamic and updated in real-time. For large quantity orders (1,000+ units), please contact us for real-time stock verification and custom pricing.
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