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MP2370 4.5-24V, 1.2A, 1.4MHz Step-Down White LED Driver TSOT23
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pMPS MP2370 — Step-Down White LED Driver, 4.5-24V input, 1.2 A output, TSOT23./p
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MP2370 4.5-24V, 1.2A, 1.4MHz Step-Down White LED Driver TSOT23
The MPS MP2370 is a Step-Down White LED Driver. It operates from a 4.5 V to 24 V input, is rated for 1.2 A and switches at 1.4 MHz. It is supplied in a TSOT23 package.
The MP2370 is a monolithic step-down white LED driver with a built-in power MOSFET.
Key Specifications
| Part Number | MP2370 |
| Function | Step-Down White LED Driver |
| Input Voltage | 4.5 V to 24 V |
| Current Rating | 1.2 A |
| Switching Frequency | 1.4 MHz |
| Peak Efficiency | 87% |
| Package | TSOT23 |
| Ordering Codes | MP2370 |
Features
- 1.2A Peak Output Current
- 0.35Ω Internal Power MOSFET Switch
- Stable with Low ESR Output Ceramic Capacitors
- Also Work with Cap-less Configuration
- Up to 87% Efficiency
- 0.1μA Shutdown Mode
- Fixed 1.4MHz Frequency
- Thermal Shutdown
- Cycle-by-Cycle Over Current Protection
- Wide 4.5V to 24V Operating Input Range
Typical Application Circuit
Applications
- WLED Drivers
- Distributed Power Systems
- Battery Charger
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
What input voltage does the MP2370 support?
4.5 V to 24 V. The rated output is 1.2 A.
Which package and ordering codes apply to the MP2370?
TSOT23; order codes include MP2370.
What are the defining features of the MP2370?
1.2A Peak Output Current 0.35Ω Internal Power MOSFET Switch
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