# Stmicroelectronics Dc-Dc Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 5.1V-50Vout, 3.5Aout, Soic-20 Rohs Compliant: Yes - L4973D5.1

**Manufacturer:** STMICROELECTRONICS  
**MPN:** `L4973D5.1`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | STMICROELECTRONICS |
| Manufacturer name | STMICROELECTRONICS |
| Manufacturer | STMICROELECTRONICS, ST MICROELECTRONICS, STMicroelectronics, Stmicroelectronics |
| Extra Product Name | Stmicroelectronics Dc-Dc Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 5.1V-50Vout, 3.5Aout, Soic-20 Rohs Compliant: Yes - L4973D5.1 |
| moq | 1 |
| MPN | L4973D5.1 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 38Y7865 |
| tierMinQty1 | 1 |
| tierPrice1 | 0 |
| url | https://www.newark.com/38Y7865?CMP=AFC-DATAALCHEMY |
| Part Number | L4973D5.1 |
| ASIN | B00MMUT836, B00MMUT97Q, B00MMUTA52, B073452X5G |
| AdultProduct | False |
| Asin | B00HKIBYZU, B00LVHQ3ZM, B00LVHQ56Y, B00MEKEVNQ, B00MMUT836, B00MMUT97Q, B00MMUTA52, B00R3CXLTK, B011NIVHWC, B011NIVOQG, B011NIVSWG, B011NIVX1C, B073452X5G, B07ND31SJ3 |
| Autographed | False |
| Batteries_required | False |
| Brand | ST MICROELECTRONICS, STMicroelectronics |
| Bullet_point | <b>Order Unit:</b> Each&nbsp;1 <b>DC / DC Converter IC Case:</b>: SOIC <b>Input Voltage Max:</b>: 55 <b>Input Voltage Min:</b>: 8 <b>MSL:</b>: MSL 3 - 168 hours <b>No. of Outputs:</b>: 1 <b>No. of Pin |
| Case | 1, 10, 100, 5, 50 |
| Cat | Industrial & Scientific |
| CatId | 16310091 |
| CatTree | 16310091, 16310161, 306506011, 306831011, 306842011 |
| CatalogNumberList | MS 511-L4973D5.1, MS 511-L4973D5.1 X1, MS 511-L4973D5.1 X10, MS 511-L4973D5.1 X5 |
| ClassificationId | 306506011, 306843011 |
| DisplayName | Communication Integrated Circuits, Industrial Electrical |
| Feature | <b>Price For:</b> Pack of 100<b>Order Unit:</b> Each\xa01 <b>DC / DC Converter IC Case:</b>: SOIC <b>Input Voltage Max:</b>: 55 <b>Input Voltage Min:</b>: 8 <b>MSL:</b>: MSL 3 - 168 hours <b>No. of Ou |
| Height | 1200, 150, 243, 500, 56, 66, 75 |
| Identifier | 7039791542959 |
| IdentifierType | EAN |
| IsBrandQuery | True |
| IsDeadAsin | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | L4973D5.1, Conv DC-DC 8V to 55V Step Down Single-Out 5.1V to 50V 3.5A 20-Pin SO Tube (10 Items), ST MICROELECTRONICS L4973D5.1 L4973 Series 55 V 600 uA 300 kHz Buck SMT Switching Regulator - SOIC-20 - |
| Item_name | L4973D5.1, Conv DC-DC 8V to 55V Step Down Single-Out 5.1V to 50V 3.5A 20-Pin SO Tube (10 Items), ST MICROELECTRONICS L4973D5.1 L4973 Series 55 V 600 uA 300 kHz Buck SMT Switching Regulator - SOIC-20 - |
| Item_package_quantity | 1 |
| Item_type_keyword | communication-integrated-circuits, electronic-components |
| Item_weight | 1.45, 20.0 |
| Keyword | L4973D5.1 |
| Label | ST MICROELECTRONICS, STMICROELECTRONICS, STMicroelectronics, Stmicroelectronics |
| Link | https://m.media-amazon.com/images/I/118Oo9zcybL._SL75_.jpg, https://m.media-amazon.com/images/I/118Oo9zcybL.jpg, https://m.media-amazon.com/images/I/21Hyq+D1y3L._SL75_.jpg, https://m.media-amazon.com/ |
| Man | ST MICROELECTRONICS, STMICROELECTRONICS, STMicroelectronics |
| Memorabilia | False |
| Model | L4973D5.1 |
| ModelNumber | L4973D5.1 |
| Model_number | L4973D5.1 |
| NumberOfItems | 1, 10, 100, 5, 50 |
| Number_of_items | 1, 10, 5 |
| PackageQuantity | 1, 10, 100, 5, 50 |
| PartNumber | L4973D5.1 |
| Part_number | L4973D5.1 |
| ProductGroup | BISS, BISS Basic |
| ProductType | ELECTRONIC_COMPONENT, HARDWARE |
| ProductTypeName | BISS, ELECTRONIC_COMPONENT, HARDWARE |
| Product_description | DC-DC Switching Buck (Step Down) Regulator, Adjustable, 8V-55Vin, 5.1V-50Vout, 3.5Aout, SOIC-20 RoHS Compliant: Yes, L4973 Series 55 V 600 uA 300 kHz Buck SMT Switching Regulator - SOIC-20 ***** For m |
| Product_site_launch_date | 2017-06-22T21:23:51.634Z, 2019-02-04T17:17:33.380Z, 2021-02-19T16:56:48.828Z |
| Publisher | ST MICROELECTRONICS, STMICROELECTRONICS, STMicroelectronics, Stmicroelectronics |
| Size | 10 pack, 100 pack, 5 pack, 50 pack |
| Sku | STMICROELECTRONICS L4973D5.1 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Newark | 38Y7865 |  |  | None | 1 |
| Radwell | L4973D5.1 |  |  | 13 | 1 |
| Win Source | L4973D5.1 | 2.273 | 1 | 19288 | 22 |
| RS Delivers | 379-983 | 6.33 | 1 | None | 1 |
| TME | L4973D5.1 |  |  | None | 1 |
| swatee.com | L4973D5.1 | 10.6 | 1 | 244 | 1 |
| 4 Star Electronics | L4973D51 |  |  | None | 1 |
| AmazonSC | B00MMUTA52 |  |  | None | 1 |
| Digi-Key | 585933 |  |  | None | 1 |
| RS Delivers | 102-3576 | 4.437 | 1 | None | 40 |
| RS Delivers | 379-983P | 6.33 | 1 | None | 1 |
| st.com | L4973D5.1 | 5.84 | 1 | None | 1 |

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