For Reference Only
| Part Number | LT3991IDD |
| LIXINC Part # | LT3991IDD |
| Manufacturer | LIXINC Electronics Co., Limited |
| Category | Integrated Circuits › PMIC - Voltage Regulators - DC DC Switching Regulators |
| Description | IC REG BUCK ADJ 1.2A 10DFN |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | LT3991IDD PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Jan 24 - Jan 28 2026(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | LT3991IDD |
| Brand: | LIXINC Electronics Co., Limited |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits |
| Subcategory: | PMIC - Voltage Regulators - DC DC Switching Regulators |
| Manufacturer: | LIXINC Electronics Co., Limited |
| Series: | - |
| Package: | Tube |
| Part Status: | Obsolete |
| Function: | Step-Down |
| Output Configuration: | Positive |
| Topology: | Buck |
| Output Type: | Adjustable |
| Number of Outputs: | 1 |
| Voltage - Input (Min): | 4.3V |
| Voltage - Input (Max): | 55V |
| Voltage - Output (Min/Fixed): | 1.19V |
| Voltage - Output (Max): | 30V |
| Current - Output: | 1.2A |
| Frequency - Switching: | 200kHz ~ 2MHz |
| Synchronous Rectifier: | No |
| Operating Temperature: | -40°C ~ 125°C (TJ) |
| Mounting Type: | Surface Mount |
| Package / Case: | 10-WFDFN Exposed Pad |
| Supplier Device Package: | 10-DFN (3x3) |
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| In Stock | 10820 - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
Warm Tips: Please fill out the form below. We will contact you as soon as possible.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $0.0000 | $0 |
| 100 | $0.0000 | $0 |
| 500 | $0.0000 | $0 |
| 1000 | $0.0000 | $0 |
| 2500 | $0.0000 | $0 |
Lixinc will offer the most competitive prices for you, please refer to the quotations.
Please feel free to contact us for details.