Boost LED Driver

The ZSLS7025, one of the ZSLS Family of LED control ICs, is a constant current boost converter designed for driving high-brightness LEDs. It is optimal for driving multiple white LEDs connected in series so that the LED current is uniform for better brightness and color control. The wide input range and high output current enables diverse industrial, after-market automotive, and consumer lighting applications. The ZSLS7025 output current is adjustable via an external current sense resistor and can deliver stable constant output current from a few milliamps up to 2A or higher. The ZSLS7025 drives a constant current into the load. The control loop features a pulse frequency modulated (PFM) architecture that is inherently stable and does not need loop compensation. The ZSLS7025 supports pulse-width modulation (PWM) or linear voltage dimming, which allows flexible control of the LED luminance. The ZSLS7025 can operate in applications with a wide input voltage range from 5V to 100V. An integrated over-voltage protection (OVP) circuit protects the system, even under no-load conditions. The over-voltage protection is adjustable via external resistors R1 and R2.


  • Wide application input voltage range: 5V to 100V (higher voltages also supported as described in section 2.1 in the data sheet)
  • Constant current output limited only by external component selection
  • No loop compensation required
  • Internal over-voltage protection
  • Internal over-temperature protection
  • Brightness control via PWM or DC voltage control signal input
  • SOP-8 package
  • High efficiency: up to 95%
  • Minimum bill of materials
  • Small form-factor package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZSLS7025ZI1R Obsolete DCG8 SOIC 8 -40 to 125°C Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSLS7025 Datasheet Datasheet PDF 592 KB Apr 19, 2016
ZSLS7025 Short-form Datasheet Short Form Datasheet PDF 54 KB Apr 19, 2016
User Guides & Manuals
ZSLS7025PCB-D1V1 Demonstration Kit Description Manual PDF 162 KB Apr 21, 2016
PDN-2017-005-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 106 KB Jun 29, 2017
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 18, 2016

Evaluation Boards