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IC manufacturers Diodes Incorporated

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reference designAL8890Q | Demoboard AL8890QEV2

Diodes Incorporated AL8890Q | Demoboard AL8890QEV2

60V SYNCHRONOUS BUCK CONVERTER

Overview

TopologyBuck Converter
Input voltage3.8-60 V
Switching frequency300-2500 kHz
Output 10.8 V / 3.5 A
IC revision1

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

  • Automotive infotainment, Automotive exterior and interior LED lighting systems, Automotive motor controls, Automotive and industrial power systems

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
SamplesAvailability & Sample
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744325650
SPECWE-HCI SMT Flat Wire High Current Inductor, 6.5 µH, 11 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance6.5 µH
Performance Rated Current11 A
Saturation Current @ 10%4.4 A
Saturation Current @ 30%10 A
DC Resistance12.5 mΩ
Self Resonant Frequency27 MHz
MaterialSuperflux 
Packaging Unit700 
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