LM3553SDX/NOPB
Active1MHZ~1.35MHZ PWM 2 BOOST CONVERTER WSON-12-EP(3X3) LED DRIVERS ROHS
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LM3553SDX/NOPB
Active1MHZ~1.35MHZ PWM 2 BOOST CONVERTER WSON-12-EP(3X3) LED DRIVERS ROHS
Technical Specifications
Parameters and characteristics for this part
| Specification | LM3553SDX/NOPB |
|---|---|
| Applications | Camera Flash, Backlight |
| Current - Output / Channel | 1.2 A |
| Dimming | I2C |
| Frequency | 1.2 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -30 °C |
| Package / Case | 12-WFDFN Exposed Pad |
| Supplier Device Package | 12-WSON (3x3) |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Supply (Max) | 5.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 4500 | $ 0.78 | |
| 9000 | $ 0.75 | |||
| 13500 | $ 0.72 | |||
| LCSC | Piece | 1 | $ 2.82 | |
| 10 | $ 2.40 | |||
| 30 | $ 2.13 | |||
| 100 | $ 1.86 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.28 | |
| 100 | $ 1.06 | |||
| 250 | $ 0.76 | |||
| 1000 | $ 0.57 | |||
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.
Documents
Technical documentation and resources
