Datasheets
ISL8121IRZ-T by:

3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers; QFN24; Temp Range: -40° to 85°C

Part Details for ISL8121IRZ-T by Intersil Corporation

Results Overview of ISL8121IRZ-T by Intersil Corporation

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ISL8121IRZ-T Information

ISL8121IRZ-T by Intersil Corporation is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
ISL8121IRZ-TR5453 Renesas Electronics Corporation 3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers
ISL8121IRZ Renesas Electronics Corporation 3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers
ISL8121IRZ-T Renesas Electronics Corporation 3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers

Part Details for ISL8121IRZ-T

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ISL8121IRZ-T Part Data Attributes

ISL8121IRZ-T Intersil Corporation
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ISL8121IRZ-T Intersil Corporation 3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers; QFN24; Temp Range: -40° to 85°C
Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer INTERSIL CORP
Part Package Code QFN
Package Description 4 X 4 MM, ROHS COMPLIANT, PLASTIC, MO-220, QFN-24
Pin Count 24
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 26 Weeks
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 5.5 V
Input Voltage-Min 4.9 V
Input Voltage-Nom 5 V
JESD-30 Code S-PQCC-N24
JESD-609 Code e3
Length 4 mm
Moisture Sensitivity Level 3
Number of Functions 1
Number of Terminals 24
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Output Current-Max 4 A
Package Body Material PLASTIC/EPOXY
Package Code HVQCCN
Package Equivalence Code LCC24,.16SQ,20
Package Shape SQUARE
Package Style CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1 mm
Surface Mount YES
Switcher Configuration PHASE-SHIFT
Switching Frequency-Max 2000 kHz
Temperature Grade INDUSTRIAL
Terminal Finish Matte Tin (Sn) - annealed
Terminal Form NO LEAD
Terminal Pitch 0.5 mm
Terminal Position QUAD
Time@Peak Reflow Temperature-Max (s) 30
Width 4 mm

Alternate Parts for ISL8121IRZ-T

This table gives cross-reference parts and alternative options found for ISL8121IRZ-T. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of ISL8121IRZ-T, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
ISL8121IRZ Intersil Corporation Check for Price 3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers; QFN24; Temp Range: -40° to 85°C ISL8121IRZ-T vs ISL8121IRZ
ISL8126CRZ-T Intersil Corporation Check for Price Dual/n-Phase Buck PWM Controller with Integrated Drivers; QFN32; Temp Range: See Datasheet ISL8121IRZ-T vs ISL8126CRZ-T
ISL8126CRZ Intersil Corporation Check for Price Dual/n-Phase Buck PWM Controller with Integrated Drivers; QFN32; Temp Range: See Datasheet ISL8121IRZ-T vs ISL8126CRZ
ISL8120IRZ-TEC Intersil Corporation Check for Price 0.25A DUAL SWITCHING CONTROLLER, 1500kHz SWITCHING FREQ-MAX, QCC32, 5 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-32 ISL8121IRZ-T vs ISL8120IRZ-TEC
ISL8126IRZ-T Renesas Electronics Corporation Check for Price Dual/n-Phase Buck PWM Controller with Integrated Drivers, QFN, /Reel ISL8121IRZ-T vs ISL8126IRZ-T
ISL8120IRZEC Intersil Corporation Check for Price 0.25A DUAL SWITCHING CONTROLLER, 1500kHz SWITCHING FREQ-MAX, QCC32, 5 X 5 MM, ROHS COMPLIANT, PLASTIC, QFN-32 ISL8121IRZ-T vs ISL8120IRZEC
ISL8126IRZ-T Intersil Corporation Check for Price Dual/n-Phase Buck PWM Controller with Integrated Drivers; QFN32; Temp Range: See Datasheet ISL8121IRZ-T vs ISL8126IRZ-T

ISL8121IRZ-T Related Parts

ISL8121IRZ-T Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the ISL8121IRZ-T is 18V, but it's recommended to operate within the specified input voltage range of 6.5V to 14V for optimal performance and reliability.

  • To ensure the stability of the output voltage, make sure to follow the recommended layout guidelines, use a suitable output capacitor with low ESR, and add a 10nF ceramic capacitor between the FB pin and GND. Additionally, ensure that the input voltage is within the specified range and the output current is within the recommended limits.

  • The EN (Enable) pin is used to turn the regulator on or off. When the EN pin is pulled high (above 1.4V), the regulator is enabled, and when it's pulled low (below 0.4V), the regulator is disabled. You can use the EN pin to implement power sequencing or to turn off the regulator when not in use to reduce power consumption.

  • The ISL8121IRZ-T is rated for operation up to 125°C, but it's essential to consider the thermal design and ensure that the junction temperature (TJ) does not exceed 150°C. You may need to add thermal management measures, such as heat sinks or thermal pads, to ensure reliable operation in high-temperature environments.

  • The output voltage of the ISL8121IRZ-T can be calculated using the formula: VOUT = 0.8V x (1 + R1/R2), where R1 and R2 are the resistors connected between the FB pin and VOUT, and between the FB pin and GND, respectively. Make sure to choose the correct resistor values to achieve the desired output voltage.

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