Diodes, Inc. Supplier Page

LED Driver Solutions



Diodes, Inc. and Digi-Key introduce a family of boost and buck LED drivers

To ensure the total cost of ownership of LED lighting is comparable with or lower than traditional lighting, highly efficient and cost effective processes for driving LEDs are vital. That’s why Diodes, Inc. has developed a range of dedicated LED driver ICs to tackle a wide range of existing and emerging applications including: architectural lighting, automotive lighting, safety and security lights, and portable lighting. Zetex LED driver solutions from Diodes, Inc. are not only characterized by high efficiency and cost effectiveness, but by their incredible versatility.


  • AP880X
  • ZXLD132X
  • ZXLD135X
  • ZXLD136X
  • ZXLD38X
  • ZXSC

AP880X Series

AP880X Series AP880X step-down DC-DC converters require the support of only four components and operate at switching frequencies up to 600kHz, enabling the use of smaller, lower cost inductors and capacitors. Designed to drive series-connected LEDs with a constant current, the AP880X family supports up to 13 LEDs from voltage sources between 8V and 48V. The drivers are suitable for a broad range of high-brightness, general illumination applications including: signage, architectural, emergency lighting and MR16 lamp replacement. An integrated soft-start function reduces LED stress and extends lifetime.

Features Applications
  • High efficiency
  • High switching frequency
  • PWM/DC input for dimming control
  • Built-in output open-circuit protection
  • Commercial & Industrial lighting
  • Small LCD panel backlight
  • Architecture detail lighting
  • Appliances interior lighting

Series Max. Output Voltage Quiescent Current Max. Switch Current Description  
AP8800 28V 30µA 600mA 350MA LED STEP-DOWN CONVERTER AP8800 Series Datasheet
AP8801 48V 120µA 500mA 500MA LED STEP-DOWN CONVERTER AP8801 Series Datasheet
AP8802 48V 120µA 500mA 1A LED STEP-DOWN CONVERTER AP8802 Series Datasheet

ZXLD132X Series

ZXLD132X Series The ZXLD132X Series are inductive DC/DC converters with an internal switch that are designed for driving single or multiple LEDs in series. The devices include the DC-DC converter, a high-side current monitor and an NPN switching transistor to provide an integrated solution offering small PCB size, competitive cost and performance, high power efficiency of DC-DC conversion and maximum LED brightness and reliability. More importantly, it retains design flexibility to add customer specific features. External resistors set nominal average LED current and coil peak current independently.

Features Applications
  • LED current adjustable from 100% down to 2%
  • High output current stability over input voltage and temperature
  • 12µA typical standby current
  • Adjustable soft-start
  • Power 'OK' flag output
  • Capable of driving multiple LEDs in series
  • Low voltage halogen lamp replacement LEDs
  • High power LED flashlights
  • LED back-up lighting
  • General LED lighting
  • Automotive lighting
  • Emergency lighting

Series Max. Output Voltage Quiescent Current Max. Switch Current Description  
ZXLD1320 18V 12µA 2000mA IC LED DRVR WHITE BCKLGT 14-TDFN ZXLD1320 Series Datasheet
ZXLD1321 18V 12µA 2000mA IC LED DRVR WHITE BCKLGT 14-TDFN ZXLD1321 Series Datasheet
ZXLD1322 18V 12µA 2000mA IC LED DRIVR WHITE BCKLGT 14-DFN ZXLD1322 Series Datasheet

ZXLD135X Series

ZXLD135X Series The ZXLD135X is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device provides an externally adjustable output current of up to 350mA or 550mA (ZXLD1356). Depending upon supply voltage and external components, this can provide up to 8W or 30W (ZXLD1356) of output power. The ZXLD135X includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. The ADJ pin will accept either a DC voltage or a PWM waveform.

Features Applications
  • Simple low parts count
  • Single pin on/off & brightness control using DC voltage or PWM
  • Internal PWM filter
  • High efficiency
  • Wide input voltage range
  • Inherent open-circuit LED protection
  • Low voltage halogen replacement LEDs
  • Automotive lighting
  • Low voltage industrial lighting
  • LED back-up lighting
  • Illuminated signs

Series Max. Output Voltage Quiescent Current Max. Switch Current Description  
ZXLD1350 30V 15µA 370mA IC LED DRIVR WHITE BCKLGT TSOT-5 ZXLD1350 Series Datasheet
ZXLD1352 30V 20µA 370mA IC LED DRIVER HIGH BRIGHT TSOT-5 ZXLD1352 Series Datasheet
ZXLD1356 60V 65µA 550mA IC LED DRIVR WHITE BCKLGT TSOT-5/6-DFN ZXLD1356 Series Datasheet

ZXLD136X Series

ZXLD136X Series The ZXLD1360 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device provides an externally adjustable output current of up to 1A. The ZXLD136X series includes the output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. Output current can be adjusted above, or below the set value, by applying an external control signal to the 'ADJ' pin. The ADJ pin will accept either a DC voltage or a PWM waveform.

Features Applications
  • Simple low parts count
  • Single pin on/off & brightness control using DC voltage or PWM
  • Internal PWM filter
  • High efficiency
  • Wide input voltage range
  • Inherent open-circuit LED protection
  • Low voltage halogen replacement LEDs
  • Automotive lighting
  • Low voltage industrial lighting
  • LED back-up lighting
  • Illuminated signs

Series Max. Output Voltage Quiescent Current Max. Switch Current Description  
ZXLD1360 30V 20µA 1000mA IC LED DRIVR WHITE BCKLGT TSOT-5 ZXLD1360 Series Datasheet
ZXLD1362 60V 65µA 1000mA IC LED DRIVR WHITE BCKLGT TSOT-5 ZXLD1362 Series Datasheet
ZXLD1366 60V 65µA 1000mA IC LED DRIVER WHITE BCKLGT 6-DFN/TSOT-5 ZXLD1366 Series Datasheet

ZXLD38X Series

ZXLD38X Series The ZXLD38X is a series of single or multi cell LED drivers designed for applications where step-up voltage conversion from a very low input voltage is required. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages. These devices us a PFM control technique to drive an internal switching transistor that exhibits 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.

Features Applications
  • 85% Efficiency
  • User adjustable output current
  • Single cell operation (0.9V minimum)
  • Low saturation voltage switching transistor
  • SOT23-3 or TSOT23-5 package
  • Simple application circuit
  • LED flashlights and torches
  • LED backlights
  • White LED driver
  • Gated boost supply generator (ZXLD383)
  • Garden lights (ZXLD383)

Series Max. Output Voltage Quiescent Current Max. Switch Current Description  
ZXLD381 VIN to 20V 800mA IC LED DRIVR WHITE BCKLT SOT23-3 ZXLD381 Series Datasheet
ZXLD383 VIN to 20V 3µA 800mA IC LED DRIVR WHITE BCKLGT TSOT-5 ZXLD383 Series Datasheet

ZXSC Series

ZXSC Series The ZXSC300 and ZXSC380 are single or multi-cell LED drivers designed for applications where step-up voltage conversion from very low input voltages is required. These applications mainly operate from single 1.5V or 1.2V battery cells. The circuit generates constant current pulses that are ideal for driving single or multiple LED’s over a wide range of operating voltages.

The ZXSC310 is a single or multi-cell LED driver designed for LCD backlighting applications. The input voltage range of the device is between 0.8V and 8V. This means the ZXSC310 is compatible with single NiMH, NiCd or Alkaline cells as well as multi-cell or lithium-Ion batteries.

The ZXSC400 is a voltage mode boost converter. Its low feedback voltage allows the current in a chain of LEDs to be set and accurately monitored with a single resistor giving minimal losses. Its excellent load and line regulation means that for the full supply range from lithium-ion cells, the LED current will typically change by less than 1%. Using high efficiency Zetex switching transistors with ratings of 20V and higher allows many LEDs to be chained in a series for the best LED current matching possible.


Features Applications
  • High efficiency
  • Minimum operating input voltage 0.8V
  • Fixed or adjustable output current
  • Low saturation voltage switching transistor
  • LED flashlights and torches
  • LED backlights
  • White LED driving
  • Multiple LED driving

Series Max. Output Voltage Quiescent Current Max. Switch Current Description  
ZXSC300 VIN to VEXT SW 200µA External switch IC LED DRVR WHITE BCKLGT SOT23-5 ZXSC300 Series Datasheet
ZXSC310 VIN to VEXT SW 200µA External switch IC LED DRVR WHITE BCKLGT SOT23-5 ZXSC310 Series Datasheet
ZXSC380 VIN to 20V 80µA 95mA IC LED DRVR WHITE BCKLGT SOT23-3 ZXSC380 Series Datasheet
ZXSC400 VIN to VEXT SW 150µA External switch IC LED DRVR WHITE BCKLGT SOT23-6 ZXSC400 Series Datasheet

Please visit Digi-Key's Lighting Solutions Technology Zone to learn more about Diodes, Inc. lighting products.