MIC2289-34YML-TR
ActiveLED DRIVER, BOOST, 1.2MHZ, MLF-8
MIC2289-34YML-TR
ActiveLED DRIVER, BOOST, 1.2MHZ, MLF-8
Description
General part information
MIC2289 Series
The MIC2289 is a PWM (pulse width modulated), boost-switching regulator that is optimized for constant-current white LED driver applications. The MIC2289 features an internal Schottky diode and three levels of output overvoltage protection providing a small size and efficient DC/DC solution that requires only four external components.
To optimize efficiency, the feedback voltage is set to only 95mV. This reduces power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery.
The MIC2289 implements a constant frequency 1.2MHz PWM control scheme. The high frequency, PWM operation saves board space by reducing external component sizes. The added benefit of the constant frequency PWM scheme in caparison to variable frequency is much lower noise and input ripple injected to the input power source.
Technical Specifications
Parameters and characteristics for this part
| Specification | MIC2289-34YML-TR |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 750 mA |
| Dimming | PWM, Analog |
| Frequency | 1.2 MHz |
| Internal Switch(s) | Yes |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature (Max) | 125 °C |
| Operating Temperature (Min) | -40 °C |
| Package / Case | 8-VFDFN Exposed Pad, 8-MLF® |
| Package Length | 2 mm |
| Package Name | 8-MLF® |
| Package Width | 2 mm |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 34 V |
| Voltage - Supply (Max) | 10 V |
| Voltage - Supply (Min) | 2.5 V |
Pricing
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