Datasheet for LTC3552EDHC#PBF:
- Manufacturer Part Number : LTC3552EDHC#PBF
- Manufacturer : AD
- Description : Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter IC
- Series : LTC3552
- Reference Price : USD 1.84
- Our Price : We have a better price, contact us by email
- Product Type : Battery Management
- Function : Battery Charger Plus DC/DC
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 16-Lead DFN (5mm x 3mm w/ EP)
- Pins : 16
- MFG Package Case : 05-08-1706
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 73
- Working Temperature : -40 to 125C
- Other Part Number : LTC3552EDHC#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 LTC3552 is a complete constant-current/constantvoltage linear charger with a dual DC/DC converter for single cell lithium-ion batteries. Its DFN package and low external component count make the LTC3552 ideally suited for portable applications. Furthermore, the LTC3552 is designed to work within USB power specifi cations.
No external sense resistor or external blocking diode is required due to the internal MOSFET architecture. The charge voltage is fixed at 4.2V and the charge current is programmed with a resistor. The charge cycle terminates when the charge current drops below the programmed termination threshold after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LTC3552 enters a low current state dropping the battery drain current to less than 2µA. Thermal regulation maximizes charge rate without risk of overheating.
The synchronous step-down switching regulators generate adjustable output voltages from 5V down to 0.6V. The switching frequency is set at 2.25MHz, allowing the use of small surface mount inductors and capacitors.
| Vout | |
| LTC3552 | Adjustable (0.6V to 5V) |
| LTC3552-1 | 1.8V & 1.575V |
Applications
- Cellular Telephones, PDAs, MP3 Players
- Bluetooth Applications
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.
