The LM3553 is a fixed frequency, current mode step-up DC/DC converter with two regulated current sinks. The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery.
The LM3553 includes a TX pin that forces Torch mode during a flash event allowing for synchronization between the RF power amplifier and Flash/Torch modes. It also includes a multi-function pin (M/F) that can serve as a GPIO and a hardware RESET pin.
The LM3553 is available in a 3mm by 3mm package.
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|Part number||Order||Vin (Min) (V)||Vin (Max) (V)||LED (#)||Iout (Max) (A)||Iq (Typ) (mA)||Features||Operating temperature range (C)||Package Group||Package size: mm2:W x L (PKG)|
|-30 to 85||WSON | 12||12WSON: 9 mm2: 3 x 3 (WSON | 12)|