Datasheet for DC1458A:
- Manufacturer Part Number : DC1458A
- Manufacturer : AD
- Description : 38V, 1.3A, 2MHz Step-Down Regulator with 2.2μA Quiescent Current IC
- Series : LT3971A
LT3971A-5 - Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Step-Down (Buck) Regulators
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : LT3972EMSE Demo Board | 6.3V = VIN = 33V (62V Transients), Vout = 5V @ 3.5A
- Pins : -
- MFG Package Case : -
- Part Type : EVAL
- Standard Packing Type : -
- Standard Packing Quantity : -
- Working Temperature : -
- Other Part Number : DC1458A
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for DC1458A. If you need any more information about DC1458A, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LT3971A is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 38V. Low quiescent current design consumes only 2.8μA of supply current while regulating with no load. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 15mV in a typical application. An internally compensated current mode topology is used for fast transient response and good loop stability. A high efficiency 0.33Ω switch is included on the die along with a boost Schottky diode and the necessary oscillator, control and logic circuitry. An accurate 1V threshold enable pin can be used to shut down the LT3971A, reducing the input supply current to 700nA. A capacitor on the SS pin provides a controlled inrush current (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage. The LT3971A is available in a small 10-lead MSOP package with an exposed pad for low thermal resistance.
The LT3971A and LT3971A-5 have a more accurate reference voltage compared to the LT3971 and LT3971-5. The LT3971A-5 also has specified VOUT pin current and ABSMAX current. These characteristics are important for USB applications.
| VOUT | IOUT | VREF Accuracy | |
| LT3971 | Adj | 1.2A | 2.5% |
| LT3971-3.3 | 3.3V | 1.2A | 2.5% |
| LT3971-5 | 5V | 1.2A | 2.5% |
| LT3971A | Adj | 1.3A | 1.5% |
| LT3971A-5 | 5V | 1.3A | 1.5% |
Applications
- USB VBUS Regulation
- Automotive Battery Regulation
- Power for Portable Products
- Industrial Supplies
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
