LTC3557EUF-1#PBF
ActiveUSB POWER MANAGER WITH LI-ION CHARGER AND THREE STEP-DOWN REGULATORS
Deep-Dive with AI
Search across all available documentation for this part.
LTC3557EUF-1#PBF
ActiveUSB POWER MANAGER WITH LI-ION CHARGER AND THREE STEP-DOWN REGULATORS
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3557EUF-1#PBF |
|---|---|
| Applications | Handheld/Mobile Devices |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 28-WFQFN Exposed Pad |
| Supplier Device Package | 28-QFN (4x4) |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 4.35 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 13.74 | |
| 10 | $ 9.74 | |||
| 25 | $ 8.72 | |||
| 100 | $ 7.57 | |||
| 250 | $ 7.01 | |||
| 500 | $ 6.67 | |||
| 1000 | $ 6.49 | |||
Description
General part information
LTC3557LTC3557-1 Series
The LTC3557/LTC3557-1 is a highly integrated power management and battery charger IC for single cell Li-Ion/Polymer battery applications. It includes a PowerPath™manager with automatic load prioritization, a battery charger, an ideal diode and numerous internal protection features. Designed specifically for USB applications, the LTC3557/LTC3557-1 power manager automatically limits input current to a maximum of either 100mA or 500mA for USB applications or 1A for wall adapter powered applications. Battery charge current is automatically reduced such that the sum of the load current and the charge current does not exceed the programmed input current limit. The LTC3557/LTC3557-1 also includes three adjustable synchronous step-down switching regulators and a high voltage buck regulator output controller with Bat-Track that allows efficient charging from supplies as high as 38V. The LTC3557/LTC3557-1 is available in a low profile 4mm × 4mm × 0.75mm 28-pin QFN package.ApplicationsHDD-Based MP3 PlayersPDA, PMP, PND/GPSUSB-Based Handheld Products
Documents
Technical documentation and resources