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MP3301 700mA, 1.3MHz Fixed-Frequency Step-Up Driver TSOT23
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pMPS MP3301 — Fixed-Frequency Step-Up Driver, 700 mA output, TSOT23./p
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MP3301 700mA, 1.3MHz Fixed-Frequency Step-Up Driver TSOT23
The MPS MP3301 is a Fixed-Frequency Step-Up Driver. It is rated for 700 mA and switches at 1.3 MHz. It is supplied in a TSOT23 package.
The MP3301 is a step-up converter designed to drive WLEDS arrays from a single-cell, lithium-ion battery.
Key Specifications
| Part Number | MP3301 |
| Function | Fixed-Frequency Step-Up Driver |
| Current Rating | 700 mA |
| Switching Frequency | 1.3 MHz |
| Interface | PWM |
| Peak Efficiency | 89% |
| Package | TSOT23 |
| Ordering Codes | MP3301 |
Features
- Internal Power MOSFET
- Drives up to 10 White LEDs in Series
- Up to 89% Efficiency
- PWM and Analog Dimming
- 1.3MHz Fixed Switching Frequency
- Low 200mV Feedback Voltage
- Internal 700mA Current Limit
- Open-Load Shutdown
- UVLO, Thermal Shutdown
- Available in TSOT23-5 Packages
Typical Application Circuit
Applications
- Smart Phones
- Digital Still Cameras
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 MP3301?
TSOT23; order codes include MP3301.
What are the defining features of the MP3301?
Internal Power MOSFET Drives up to 10 White LEDs in Series
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