Datasheet for LTC3548EKD-1#PBF:
- Manufacturer Part Number : LTC3548EKD-1#PBF
- Manufacturer : AD
- Description : Dual Synchronous, Fixed Output 2.25MHz Step-Down DC/DC Regulator IC
- Series : LTC3548-1
- Reference Price : USD 2.168
- 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 UTDFN (3mm x 3mm x 0.55mm w/ EP)
- Pins : 10
- MFG Package Case : 05-08-1739
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 121
- Working Temperature : -40 to 125C
- Other Part Number : LTC3548EKD-1#PBF
- 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 LTC3548-1 is a dual, fixed output, 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 ≤1mm. The output voltage for channel 1 is fixed at 1.8V and for channel 2 is fixed at 1.575V. Internal synchronous 0.35Ω, 1.2A/0.7A power switches provide high efficiency without the need for external Schottky diodes. Burst Mode® operation provides high efficiency at light loads.
To further maximize battery runtime, 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.
The LTC3548-1 is available in both thin (0.75mm) and ultra-thin (0.55mm) 3mm × 3mm DFN packages.
| 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.
