| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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309 pcs
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309 pcs | On Request | 1 | On Request | On Request | 2018+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Tape & Reel |
The LTC3675/LTC3675-1 is a digital programmable, high-efficiency, multi-output power supply and two-string LED driver IC, optimized for high-power single-cell Li-Ion/Li-Polymer battery applications. The device includes four synchronous buck converters (1A/1A/500mA/500mA), one synchronous boost DC/DC (1A), and one buck-boost DC/DC (1A), all powered from a 2.7V to 5.5V input.
The 40V LED driver can regulate up to 25mA of current through two strings of LEDs, each containing up to 10 LEDs. The LED driver can also be configured as a general-purpose high-voltage boost converter. DC/DC enable, output voltage, switching slew rate, and operating mode can be individually set via I2C or used in a single mode with simple I/O and power-on defaults.
The buck DC/DCs can be used individually or paralleled to provide higher output current with a shared inductor. LED enable, 60dB brightness control, and grayscale up/down are set via I2C. Low VIN and high chip temperature alarm levels can also be set via I2C and monitored with a maskable interrupt output for DC/DC and system faults. Button ON/OFF/reset control and a power-on reset output provide flexibility and reliable power-on sequencing.
The LTC3675/LTC3675-1 is available in a low-profile (0.75mm height only), thermally enhanced 44-lead 4mm x 7mm QFN package.
The LTC3675 includes 4 synchronous buck converters (1A/1A/500mA/500mA), 1 synchronous boost DC/DC (1A), and 1 buck-boost DC/DC (1A).
The input voltage range is from 2.7V to 5.5V.
The LED driver has a maximum voltage of 40V and can regulate up to 25mA of current per string.
Each string can drive up to 10 LEDs.
The LTC3675 uses an I2C control interface.
The quiescent current is 16μA when all DC/DCs are shut off.
The LTC3675 is available in a 4mm x 7mm x 0.75mm QFN package.