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21 pcs
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21 pcs | On Request | 1 | On Request | On Request | 09+ | On Request | On Request |
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The LTC3577EUFF-1 by Linear Technology (LT) is a highly integrated 6-channel Power Management Integrated Circuit (PMIC) designed for portable applications. This device combines a full-featured Li-Ion/Polymer charger and PowerPath controller with instant-on operation.
Key electrical specifications include triple adjustable high efficiency step-down switching regulators with outputs of 800mA, 500mA, and 500mA. It also features dual 150mA current-limited LDOs. The battery float voltage is 4.1V, and it supports a maximum charge current of 1.5A with thermal limiting. The input voltage range is from 4.35V to 5.5V.
This PMIC integrates an LED backlight driver with 60dB brightness control and gradation via I2C. It also includes pushbutton on/off control with system reset functionality. The operating temperature range is from 0°C to 85°C.
The LTC3577EUFF-1 is housed in a compact 4mm x 7mm, 44-pin QFN package, making it suitable for space-constrained portable devices such as PNDs, DMB/DVB-H, digital/satellite radios, and media players.
4.35V to 5.5V.
QFN-44 (4mm x 7mm).
0°C to 85°C.
4.1V.
1.5A with thermal limiting.
Three buck outputs (0.5A, 0.5A, 0.8A) and two LDOs (0.15A each).