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MP3205 1.3MHz Fixed Frequency 5 White LED Driver TSOT23
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pMPS MP3205 — Fixed Frequency 5 White LED Driver, TSOT23./p
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MP3205 1.3MHz Fixed Frequency 5 White LED Driver TSOT23
The MPS MP3205 is a Fixed Frequency 5 White LED Driver. It switches at 1.3 MHz. It is supplied in a TSOT23 package.
The MP3205 is a step-up converter designed for driving up to 5 series white LEDs from a single cell Lithium Ion battery.
Key Specifications
| Part Number | MP3205 |
| Function | Fixed Frequency 5 White LED Driver |
| Switching Frequency | 1.3 MHz |
| Interface | PWM |
| Peak Efficiency | 87% |
| Package | TSOT23 |
| Ordering Codes | MP3205 |
Features
- On Board Power MOSFET
- Drives up to 5 Series White LEDs
- Up to 87% Efficiency
- Over 1MHz Fixed Switching Frequency
- Low 104mV Feedback Voltage
- Soft-Start/PWM Dimming
- UVLO, Thermal Shutdown
- Internal Current Limit
- Available in a TSOT23-5 Package
Typical Application Circuit
Applications
- Cell Phones
- Handheld Computers and PDAs
- Digital Still Cameras
- Small LCD Displays Application "MPS" and "The Future of Analog IC Technology" are Trademarks of Monolithic Power Systems, Inc.
Design Notes
- Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
- In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
- Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
- Size the inductor and output capacitor for the string current ripple, not the total LED current.
Common Questions
Which package and ordering codes apply to the MP3205?
TSOT23; order codes include MP3205.
What are the defining features of the MP3205?
On Board Power MOSFET Drives up to 5 Series White LEDs
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