LM3553SD/NOPB
Active1.2A DUAL FLASH LED DRIVER SYSTEM WITH I2C COMPATIBLE INTERFACE
LM3553SD/NOPB
Active1.2A DUAL FLASH LED DRIVER SYSTEM WITH I2C COMPATIBLE INTERFACE
Description
General part information
LM3553 Series
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.
Technical Specifications
Parameters and characteristics for this part
| Specification | LM3553SD/NOPB |
|---|---|
| Applications | Backlight, Camera Flash |
| Current - Output / Channel | 1.2 A |
| Dimming | I2C |
| Frequency | 1.2 MHz |
| Internal Switch(s) | Yes |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature (Max) | 85 °C |
| Operating Temperature (Min) | -30 °C |
| Package / Case | 12-WFDFN Exposed Pad |
| Package Length | 3 mm |
| Package Name | 12-WSON |
| Package Width | 3 mm |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) | 2.7 V |
Pricing
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CAD
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