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110 pcs
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110 pcs | On Request | 1 | On Request | On Request | 2026-02-25 06:16:38 | On Request | On Request |
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The ZXLD381FHTA from Diodes Incorporated is a single or multi-cell LED driver solution designed for applications where step-up voltage conversion from very low input voltages is required, such as those operating from 1.5V or 1.2V cells. This IC generates constant current pulses ideal for driving single or multiple LEDs over a wide range of operating voltages.
Utilizing a PFM control technique, the ZXLD381FHTA drives an internal switching transistor with low saturation resistance, ensuring high efficiency even for input voltages as low as 1V. The device can start up under full load and operates down to an input voltage of 0.9V. Key electrical specifications include an operating voltage range of 0.9V to 2.2V, a switch current of up to 400mA, and an efficiency of 85% at 3.5V LED voltage.
The ZXLD381FHTA is offered in a space-saving SOT-23-3 package, making it suitable for compact designs. Its applications include LED flashlights, torches, and LED backlights. The device features user-adjustable output current and a typical operating frequency of 350kHz.
This LED driver IC is designed for surface mount applications and operates within an ambient temperature range of 0°C to 85°C. The SOT-23-3 package (TO-236-3, SC-59) is standard for this component.
| Qty | Low | High |
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| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage operating range is 0.9 V to 2.2 V.
The device is available in a SOT-23-3 surface mount package.
The operating temperature range is 0°C to 85°C.
The typical switching frequency is 350 kHz.
The output switch current absolute maximum rating is 800 mA.
The device uses a step-up (boost) topology.
The typical efficiency is 85% at VLED = 3.5V.