Diodes Incorporated AL8890Q | Demoboard AL8890QEV2

Description

The AL8890Q is a synchronous buck converter with internalcompensation and switching frequency adjustable up to2.5MHz. The device integrates a 120mΩ high-side powerMOSFET and a 55mΩ low-side power MOSFET to providehigh-efficiency DC-DC conversion.The AL8890Q enables a continuous load current of up to 3.5Awith efficiency as high as 95% in enhanced biased. The devicefeatures current mode control operation, which enables easyloop stabilization supporting a wide range of output loading,suitable for both CV (Constant Voltage) and CC (ConstantCurrent) applications.

Features

• AEC-Q100 Grade1
• VIN 3.8V to 60V
• Wide VOUT Range: 0.8V to near 100% of VIN
• VOUT 1% Accuracy
• VFB Adjustable through SS/TR Pin
• Synchronous Rectification > 95% Efficiency @12V▪ High-Side (120mΩ) Power MOSFET▪ Low-Side (55mΩ) Power MOSFETs
• Low Quiescent Current 43μA
• Switching Frequency 300kHz to 2.5MHz
• Force PWM or PFM Mode through MYSNC
• Synchronization to External Clock
• Programmable Startup Control▪ Startup with Pre-Biased Output▪ External Soft-Start with Tracking▪ High Voltage Enable Pin with High Precision
• Protection and Diagnosis Functions▪ Power Good (PG) Detection▪ Thermal Shutdown Protection
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• The AL88902Q is suitable for automotive applicationsrequiring specific change control; this part is AEC-Q100qualified, PPAP capable, and manufactured in IATF 16949certified facilities.

Typical applications

More information

• Datasheet
• IC product information