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ISL85418FRZ - Renesas Electronics

Description: The ISL85418 is a 800mA synchronous buck regulator with an input range of 3V to 40V. It provides an easy-to-use, high efficiency low BOM count solution for a variety of applications. The ISL85418 integrates both high-side and low-side NMOS FETs and features a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is needed. The ISL85418 switches at a default frequency of 500kHz; however, it can also be programmed using an external resistor from 300kHz to 2MHz. The I

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ISL85418FRZ - Renesas Electronics PCB footprint - Small Outline No-lead - Small Outline No-lead - L12.4x3-
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ISL85418FRZ - Renesas Electronics  - 3D model - Small Outline No-lead - L12.4x3-
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ISL85418FRZ Details

  • Manufacturer Part Number:

    ISL85418FRZ

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DFN

  • Package Description:

    DFN-12

  • Pin Count:

    12

  • Manufacturer Package Code:

    L12.4X3

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Date Of Intro:

    2017-10-24

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    8

  • Additional Feature:

    PFM CONTROL TECHNIQUE ALSO POSSIBLE

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    6 V

  • JESD-30 Code:

    R-PDSO-N12

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1.4 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    2000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

ISL85418FRZ 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.
  • Ensure that the output capacitor has a low ESR and is placed close to the IC. Also, add a 10nF-100nF capacitor in parallel with the output capacitor to improve stability.
  • The maximum input voltage is 18V, but it's recommended to keep it below 15V to ensure reliable operation and prevent overheating.
  • Use the formula: ΔVout = (Iout * Rds(on) * fsw) / (Cout * Vout), where Iout is the output current, Rds(on) is the on-resistance of the internal FET, fsw is the switching frequency, Cout is the output capacitance, and Vout is the output voltage.
  • The thermal derating curve is not explicitly provided in the datasheet, but it's recommended to derate the output current by 1.5mA/°C above 85°C to ensure reliable operation.

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Part Image ISL85418FRZ-T7 Renesas Electronics Corporation

Switching Regulator, Current-mode, 1.4A, 2000kHz Switching Freq-Max, PDSO12