LM2759SD/NOPB
Active1A SWITCHED CAPACITOR FLASH LED DRIVER WITH I2C COMPATIBLE INTERFACE
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LM2759SD/NOPB
Active1A SWITCHED CAPACITOR FLASH LED DRIVER WITH I2C COMPATIBLE INTERFACE
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2759SD/NOPB |
|---|---|
| Applications | Camera Flash |
| Current - Output / Channel | 1 A |
| Dimming | I2C |
| Frequency | 1 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 | Switched Capacitor (Charge Pump) |
| Type | DC DC Regulator |
| Voltage - Output [Max] | 4 V |
| Voltage - Output [Min] | 2 V |
| 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 | Cut Tape (CT) | 1 | $ 1.81 | |
| 10 | $ 1.62 | |||
| 25 | $ 1.53 | |||
| 100 | $ 1.30 | |||
| 250 | $ 1.22 | |||
| 500 | $ 1.07 | |||
| Digi-Reel® | 1 | $ 1.81 | ||
| 10 | $ 1.62 | |||
| 25 | $ 1.53 | |||
| 100 | $ 1.30 | |||
| 250 | $ 1.22 | |||
| 500 | $ 1.07 | |||
| Tape & Reel (TR) | 1000 | $ 0.89 | ||
| 2000 | $ 0.83 | |||
| 5000 | $ 0.80 | |||
| 10000 | $ 0.77 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.36 | |
| 100 | $ 1.12 | |||
| 250 | $ 0.81 | |||
| 1000 | $ 0.61 | |||
Description
General part information
LM2759 Series
LM2759 is an integrated low-noise, high-current switched capacitor DC/DC converter with a regulated current source. The device requires only four small ceramic capacitors making the total solution area less than 22 mm2and the height less than 1 mm. The LM2759 is capable of driving loads up to 1A from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.
The LED current can be programmed up to 1A via an I2C-compatible interface, along with eight selectable Flash Time-Out durations. One high-current Flash LED can be driven either in a high-power Flash mode or a low-power Torch mode. The Strobe pin allows the flash to be toggled via a Flash enable signal from a camera module. The TX input pin limits the Flash LED current to the Torch current level during a RF PA pulse, to reduce high loads on the battery. Internal soft-start circuitry limits the amount of inrush current during start-up.
LM2759 is offered in a small 12-pin thermally enhanced WSON package.
Documents
Technical documentation and resources