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The ZXSC380 is a highly integrated single or multi cell LED driver for applications where step-up voltage conversion from a very low input voltage is required. These applications mainly operate from 1.5V or 1.2V cells. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages. The ZXSC380 provides a simple to use, low cost, space saving and easy to layout solutions. The ZXSC380 uses a PFM control technique to drive an internal switching transistor which has a low saturation resistance. This ensures high efficiency, even for input voltages as low as 1V. The IC can start up under full load and operates down to an input voltage of only 0.9V typical. The ZXSC380 is offered in the space saving SOT23 package or in die form, offering an excellent cost vs performance solution for single cell LED driving applications.


  • 80% efficiency
  • User adjustable output current
  • Single cell operation
  • Low saturation voltage switching transistor
  • Simple application circuit
  • Low external component count
  • SOT23 package
  • Available also in die form


  • LED flashlights and torches
  • LED backlights
  • White LED driver

Product Specifications

Product Parameters

Topology Boost
MinimumInput Voltage (V) 0.8 V
MaximumInput Voltage (V) 6 V
Maximum Output Voltage (V) 18 V
LED Current (A) 0.08 A
Switching Frequency (kHz) 160 kHz
Efficiency (%) 80 %
OperatingTemperatureRange  (°C) 0 to 85 °C
Quiescent Current Typ (μA) N/A mA

Related Content


Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques



Orderable Part Number Buy from Distributor / Contact Sales Request Samples


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 11085 12/6/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 2446 12/6/2021 England Buy Now
Mouser Electronics Inc. 18007 12/6/2021 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics - Asia 12000 12/5/2021 Singapore Contact Sales
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