LM2753SDX/NOPB
ActiveHIGH POWER SWITCHED CAPACITOR VOLTAGE CONVERTER/FLASH LED DRIVER
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LM2753SDX/NOPB
ActiveHIGH POWER SWITCHED CAPACITOR VOLTAGE CONVERTER/FLASH LED DRIVER
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2753SDX/NOPB |
|---|---|
| Applications | Camera Flash |
| Current - Output / Channel | 400 mA |
| Dimming | PWM |
| Frequency | 725 kHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 10-WFDFN Exposed Pad |
| Supplier Device Package | 10-SON (3x3) |
| Topology | Switched Capacitor (Charge Pump) |
| Type | DC DC Regulator |
| Voltage - Output [Max] | 5.25 V |
| Voltage - Output [Min] | 4.75 V |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) [Min] | 3 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 | $ 1.99 | |
| Digi-Reel® | 1 | $ 1.99 | ||
| Tape & Reel (TR) | 4500 | $ 0.91 | ||
| 9000 | $ 0.88 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.50 | |
| 100 | $ 1.24 | |||
| 250 | $ 0.89 | |||
| 1000 | $ 0.67 | |||
Description
General part information
LM2753 Series
The LM2753 is capable of driving a flash LED with a pulsed current of 400 mA at an input voltage of 3.6 V. A switched-capacitor doubler, the LM2753 provides a regulated 5-V output (VOUT) over an input supply range of 3 V to 5.5 V. The switched output, IOUT, takes less than 10 ns to turn on and provide maximum current to a flash LED. Flash LED current is set via a ballast resistor. Continuous illumination current (torch mode) is programmed by connecting a resistor between IOUTand VOUT. This device uses only three small, low-cost ceramic capacitors.
The LM2753 device uses pulse frequency modulation (PFM) regulation. Typical operating frequency is 725 kHz. Under no-load conditions, the LM2753 operates on only 60 µA. If the output is connected to ground, the charge pump stays in the gain of 1, which helps limit the input current to 300 mA (typical).
The LM2753 is capable of driving a flash LED with a pulsed current of 400 mA at an input voltage of 3.6 V. A switched-capacitor doubler, the LM2753 provides a regulated 5-V output (VOUT) over an input supply range of 3 V to 5.5 V. The switched output, IOUT, takes less than 10 ns to turn on and provide maximum current to a flash LED. Flash LED current is set via a ballast resistor. Continuous illumination current (torch mode) is programmed by connecting a resistor between IOUTand VOUT. This device uses only three small, low-cost ceramic capacitors.
Documents
Technical documentation and resources