Datasheet for LTC3772BETS8#TRMPBF:
- Manufacturer Part Number : LTC3772BETS8#TRMPBF
- Manufacturer : AD
- Description : Micropower No RSENSE Constant Frequency Step-Down DC/DC Controller IC
- Series : LTC3772B
- Reference Price : USD 1.544
- 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 : 8-Lead SOT-23
- Pins : 8
- MFG Package Case : 05-08-1637
- Part Type : OTH
- Standard Packing Type : Reel
- Standard Packing Quantity : 500
- Working Temperature : -40 to 125C
- Other Part Number : LTC3772BETS8#TRMPBF
- 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 LTC3772B is a constant frequency current mode step-down DC/DC controller in a low profile 8-lead SOT-23 (ThinSOT™) and a 3mm × 2mm DFN package. The No RSENSE™ architecture eliminates the need for a current sense resistor, improving efficiency and saving board space.
The LTC3772B automatically switches into pulse skipping operation at light loads. It consumes only 200μA of quiescent current under a no-load condition.
The LTC3772B incorporates an undervoltage lockout feature that shuts down the device when the input voltage falls below 2V. To maximize the runtime from a battery source, the external P-channel MOSFET is turned on continuously in dropout (100% duty cycle). High switching frequency of 550kHz allows the use of a small inductor and capacitors. An internal soft-start smoothly ramps the output voltage from zero to its regulation point.
| Burst Mode | |
| LTC3772 | Yes |
| LTC3772B | No |
Applications
- 1- or 2-Cell Li-Ion Battery-Powered Applications
- Wireless Devices
- Portable Computers
- Distributed Power Systems
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.
