The NCP5030 is a fixed frequency PWM buck-boost converter optimized for constant current applications such as driving high-powered white LED. The buck-boost is implemented in an H-bridge topology and has an adaptive architecture where it operates in one of three modes: boost, buck-boost, or buck depending on the input and output voltage condition.

This device has been designed with high-efficiency for use in portable applications and is capable of driving in DC up to 900 mA into a high power LED for flashlight / torch applications. To protect the device cycle-by-cycle current limiting and a thermal shutdown circuit have been incorporated as well as output over-voltage protection. The 700 kHz switching frequency allows the use of a low value 4.7 µH and ceramic capacitors. The NCP5030 is housed in a low profile space efficient 3x4mm thermally enhanced WDFN.


  • Efficiency: 87 % at 500mA and 3.3 V VIN
  • Internal Synchronous Rectifier, No Schottky Diodes
  • Adjustable Switching Limit Current to Optimize inductor size
  • 0.3 µA Shut-down Control with True-Cut off
  • Input Voltage Range from 2.7V to 5.5 V
  • 200 mV Feedback Voltage
  • Output Over-voltage and Thermal Shut Down Protection


  • Portable Flashlight / Torch Lights

To learn more about the NCP5030 product family, Click Here.



Mfr Part#: NCP5030MTTXG
Mounting Method: Surface Mount
Package Style: DFN-12W
Available In: REEL

NCP5030 Series 900 mA 5.5V SMT Fixed Frequency PWM Buck-Boost Converter - WDFN12


Technical Specifications:

Output Current per Channel: Output Voltage: Supply Voltage: Switching Frequency-Max:
900 mA 5.5 V 2.7 to 5.5 V 700 kHz
See the Download Center for a complete library of supporting documentation.


$1.13 USD (each)
3000+ $1.13

Other quantities & packages (Reels) may also be available


Qty in Stock : 0
Reserve Stock:
Factory Stock: 0
Factory Lead-Time: 22 Weeks
Min. Order Qty: 3,000
Multiple of: 3,000
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