Datasheet for LTC3548-2:
- Manufacturer Part Number : LTC3548-2
- Manufacturer : AD
- Description : Dual Synchronous, Fixed/Adjustable Output, 2.25MHz Step-Down DC/DC Regulator
- Series : LTC3548-2
- Reference Price : USD 2.08
- 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: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC3548-2
- 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 LTC3548-2. If you need any more information about LTC3548-2, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LTC3548-2 is a dual, constant frequency, synchronous step down DC/DC converter. Intended for low power applications, it operates from 2.5V to 5.5V input voltage range and has a constant 2.25MHz switching frequency, allowing the use of tiny, low cost capacitors and inductors with a profile ≤1.2mm. For channel 1, the output voltage is fixed at 1.8V/800mA; for channel 2, the output voltage is adjustable from 0.6V to VIN. Internal synchronous 0.35Ω, 1.2A/0.7A power switches provide high efficiency without the need for external Schottky diodes.
A user selectable mode input is provided to allow the user to trade-off noise ripple for low power efficiency. Burst Mode® operation provides high efficiency at light loads, while Pulse-Skip Mode provides low noise ripple at light loads.
To further maximize battery run time, the P-channel MOSFETs are turned on continuously in dropout (100% duty cycle), and both channels draw a total quiescent current of only 40μA. In shutdown, the device draws <1μA.
| Features | |
| LTC3548A | Improved Burst Mode, Improved ESD, 2 Adjustable Outputs |
| LTC3548-2 | One Fixed 1.8V Output, 1 Adjustable |
| LTC3548-1 | Fixed 1.8V and 1.575V Outputs |
| LTC3548 | 2 Adjustable Outputs |
Applications
- PDAs/Palmtop PCs
- Digital Cameras
- Cellular Phones
- Portable Media Players
- PC Cards
- Wireless and DSL Modems
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.
