Datasheet for LT3957AIUHE#TRPBF:
- Manufacturer Part Number : LT3957AIUHE#TRPBF
- Manufacturer : AD
- Description : Boost, Flyback, SEPIC and Inverting Converter with 5A, 40V Switch IC
- Series : LT3957A
- Reference Price : USD 2.76
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : SEPIC Regulators
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 36-Lead QFN (5mm x 6mm x 0.75mm w/ EP)
- Pins : 28
- MFG Package Case : 05-08-1836
- Part Type : REEL
- Standard Packing Type : Reel
- Standard Packing Quantity : 2500
- Working Temperature : -40 to 125C
- Other Part Number : LT3957AIUHE#TRPBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LT3957A is a wide input range, current mode DC/DC converter which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. It features an internal low side N-channel power MOSFET rated for 40V at 5A and driven from an internal regulated 5.2V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages.
The operating frequency of LT3957A can be set with an external resistor over a 100kHz to 1MHz range, and can be synchronized to an external clock using the SYNC pin. A minimum operating supply voltage of 3V, and a low shutdown quiescent current of less than 1μA, make the LT3957A ideally suited for battery-powered systems.
The LT3957A features soft-start and frequency foldback functions to limit inductor current during start-up. The LT3957A has improved load transient performance compared to the LT3957.
| Features | |
| LT3957 | - |
| LT3957A | Improved Load Transient Performance |
Applications
- Automotive
- Telecom
- Industrial
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.
