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ISL6227IAZ - Renesas Electronics

Description: The ISL6227 dual PWM controller delivers high efficiency precision voltage regulation from two synchronous buck DC/DC converters. It was designed especially to provide power regulation for DDR memory, chipsets, graphics and other system electronics in Notebook PCs. The ISL6227's wide input voltage range capability allows for voltage conversion directly from AC/DC adaptor or Li-Ion battery pack. Automatic mode transition of constant-frequency synchronous rectification at heavy load, and hysteretic (HYS) diod

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ISL6227IAZ - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - M28.15
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ISL6227IAZ - Renesas Electronics  - 3D model - Small Outline Packages - M28.15
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ISL6227IAZ Details

  • Manufacturer Part Number:

    ISL6227IAZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QSOP

  • Package Description:

    QSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    M28.15

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.9V TO 5.5V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 V

  • Input Voltage-Min:

    5 V

  • Input Voltage-Nom:

    16 V

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    100 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    0.9 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.95 mm

  • Supply Current-Max (Isup):

    3 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    PHASE-SHIFT

  • Switching Frequency-Max:

    345 kHz

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    5 mm

ISL6227IAZ Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the power paths. Avoid routing sensitive signals near the inductor.
  • Choose an inductor with a high saturation current rating, low DC resistance, and a suitable inductance value (e.g., 1-10 μH). Consider the inductor's physical size, core material, and operating frequency when selecting an inductor.
  • The ISL6227IAZ can handle input voltages up to 28V, but the recommended maximum input voltage is 24V to ensure reliable operation and prevent damage to the IC.
  • The output voltage can be adjusted by changing the resistor divider network connected to the FB pin. Use the formula provided in the datasheet to calculate the required resistor values for the desired output voltage.
  • The EN (enable) pin is used to turn the converter on or off. Connect the EN pin to VIN to enable the converter, or connect it to GND to disable it. You can also use an external signal to control the EN pin for dynamic voltage scaling or power sequencing.

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