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ISL68144IRAZ-T - Renesas Electronics

Description: The ISL68144 is a digital dual output, flexible multiphase (X+Y ≤ 4) PWM controller developed to support the latest Cavium CN99xx server class processors. The ISL68144 supports the PMBus 1. 3 specification and is designed to meet the latest Intel server-class transient performance specifications. Either output can be configured to support any desired phase assignments up to a maximum of four phases across the two outputs (X+Y), such as 3+1, 2+2, 2+1, or even a single output operation as a 4+0 configuration.

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ISL68144IRAZ-T - Renesas Electronics - PCB symbol
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ISL68144IRAZ-T - Renesas Electronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - L40.5x5D 40 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE
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ISL68144IRAZ-T - Renesas Electronics - 3D model - Quad Flat No-Lead - L40.5x5D 40 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE
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ISL68144IRAZ-T Details

  • Manufacturer Part Number:

    ISL68144IRAZ-T

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TQFN

  • Package Description:

    TQFN-40

  • Pin Count:

    40

  • Manufacturer Package Code:

    L40.5X5D

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2018-02-08

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    3.465 V

  • Input Voltage-Min:

    3.135 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-PQCC-N40

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    40

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    3.05 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC40,.2SQ,16

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PHASE-SHIFT

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Pure Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

ISL68144IRAZ-T Frequently Asked Questions (FAQs)

  • Renesas provides a recommended PCB layout in the datasheet, but it's also recommended to follow the guidelines in the application note 'PCB Layout Considerations for ISL68144' (document number: AN1995). This application note provides detailed information on PCB layout, thermal considerations, and EMI reduction techniques.
  • The compensation network optimization is critical for the stability of the converter. Renesas provides a general guideline for the compensation network design in the datasheet, but it's recommended to use the Renesas PowerNavigator software tool to optimize the compensation network for the specific application. The PowerNavigator tool allows you to simulate the converter's behavior and optimize the network for the desired performance.
  • The maximum allowed voltage on the VIN pin is 28V, but it's recommended to keep the voltage below 25V to account for voltage spikes and to ensure reliable operation.
  • The ISL68144IRAZ-T has built-in OVP and UVP features, but they need to be enabled and configured properly. The datasheet provides information on how to enable and configure OVP and UVP. Additionally, Renesas provides an application note 'Overvoltage Protection and Undervoltage Protection for ISL68144' (document number: AN1996) that provides detailed information on how to implement OVP and UVP for the ISL68144IRAZ-T.
  • The recommended input capacitor type is a low-ESR ceramic capacitor with a value of 10uF to 22uF. The input capacitor should be placed close to the VIN pin and should have a voltage rating of at least 35V.

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