REF2920AIDBZR Equivalent & Substitute Parts

Part Overview

The REF2920AIDBZR is a Series Voltage Reference IC manufactured by Texas Instruments, designed to provide a fixed 2.048V output with ±2% tolerance. This component operates as a precision voltage reference in power management applications, with an output current capability of 25 mA and a supply current of 59µA. The device is housed in a SOT-23-3 surface mount package and is classified as Active product status with full RoHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and operational parameters within the Power Management (PMIC) category.

Substiute Parts

REF2920AIDBZR

Texas InstrumentsIn Stock: 21408REF2920AIDBZR Datasheet

Current PartRFQ

REF2920AIDBZT

Texas InstrumentsIn Stock: 1444REF2920AIDBZT Datasheet

Parametric EquivalentRFQ

ISL21010CFH320Z-TK

Renesas Electronics CorporationIn Stock: 1973ISL21010CFH320Z-TK Datasheet

MFR RecommendedRFQ

ISL21080CIH315Z-TK

Renesas Electronics CorporationIn Stock: 64777ISL21080CIH315Z-TK Datasheet

MFR RecommendedRFQ

ISL21080CIH320Z-TK

Renesas Electronics CorporationIn Stock: 1694ISL21080CIH320Z-TK Datasheet

MFR RecommendedRFQ

ISL60002BIH320Z-T7A

Renesas Electronics CorporationIn Stock: 1463ISL60002BIH320Z-T7A Datasheet

MFR RecommendedRFQ

ISL60002CIH320Z-TK

Renesas Electronics CorporationIn Stock: 1550ISL60002CIH320Z-TK Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REF2920AIDBZR are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Output Voltage: 2.048V (fixed)
• Package / Case: SOT-23-3 (TO-236-3, SC-59)
• Mounting Type: Surface Mount
• Reference Type: Series
• Output Type: Fixed
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Secondary Compatibility Parameters:

• Input Voltage Range: Minimum 2.098V to 5.5V
• Operating Temperature Range: -40°C to 125°C or -40°C to 85°C
• Output Current: 25 mA or 7 mA (lower current acceptable in applications not requiring full 25 mA)
• Supply Current: 59µA or lower (lower values acceptable)
• Tolerance: ±2% or tighter (tighter tolerance acceptable)
• Temperature Coefficient: 100ppm/°C or lower (lower values acceptable)

Substitutes are grouped into two categories: parametric equivalents (identical specifications with different packaging) and manufacturer-recommended alternatives (enhanced specifications with compatible electrical and mechanical parameters).

Parameter Comparison

Engineering Selection Recommendations

REF2920AIDBZT (Parametric Equivalent) This part is a direct parametric equivalent to the REF2920AIDBZR, differing only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel). All electrical specifications, tolerance, temperature coefficient, and operating parameters are identical. Selection between these two depends solely on procurement and assembly requirements for packaging format. Both maintain Active product status and full RoHS3 compliance.

ISL21010CFH320Z-TK (Renesas Electronics) This substitute offers enhanced tolerance (±0.2% versus ±2%) and improved temperature coefficient (50ppm/°C versus 100ppm/°C) while maintaining the same 2.048V output voltage and 25 mA output current. The input voltage range is slightly higher (2.2V minimum versus 2.098V), and supply current is marginally higher (100µA versus 59µA). Operating temperature range extends to 125°C. This part is suitable for applications requiring tighter voltage regulation without output current limitations.

ISL21080CIH320Z-TK (Renesas Electronics) This substitute provides enhanced tolerance (±0.3%) and lower temperature coefficient (50ppm/°C) with significantly reduced supply current (1.5µA versus 59µA). However, output current is reduced to 7 mA and output voltage is 2.048V. Input voltage minimum is 2.7V, and operating temperature is limited to 85°C. This part is appropriate for low-power applications where the 7 mA output current is sufficient.

ISL60002BIH320Z-T7A (Renesas Electronics) This substitute delivers the highest precision with ±0.05% tolerance and the lowest temperature coefficient (20ppm/°C). Supply current is minimal at 900nA. Output voltage remains 2.048V with 7 mA output current. Input voltage range is 2.7V to 5.5V, and operating temperature is -40°C to 85°C. This part is specified for precision measurement and calibration applications where ultra-low drift and minimal power consumption are critical.

ISL60002CIH320Z-TK (Renesas Electronics) This substitute offers ±0.12% tolerance with 20ppm/°C temperature coefficient and 900nA supply current. Output voltage is 2.048V with 7 mA output current. Input voltage range is 2.7V to 5.5V, and operating temperature is -40°C to 85°C. This part provides a balance between precision and power consumption for applications requiring better accuracy than the original part but not requiring the maximum precision of the ISL60002B variant.

All substitute parts maintain RoHS3 compliance, MSL Rating 1, and Surface Mount SOT-23-3 package compatibility.

Frequently Asked Questions (FAQ)

Q: Can REF2920AIDBZT be used as a direct replacement for REF2920AIDBZR? A: Yes. REF2920AIDBZT is a parametric equivalent with identical electrical specifications. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Selection depends on assembly and procurement requirements.

Q: What is the primary difference between the Texas Instruments REF2920 series and the Renesas ISL21010/ISL21080/ISL60002 series? A: The primary differences are tolerance, temperature coefficient, and output current capability. The REF2920AIDBZR provides 25 mA output current with ±2% tolerance. Renesas alternatives offer tighter tolerances (±0.2% to ±0.05%) and lower temperature coefficients (50ppm/°C to 20ppm/°C) but with reduced output current (7 mA) in most variants. The ISL21010CFH320Z-TK maintains 25 mA output current.

Q: Can I use ISL21080CIH320Z-TK if my application requires 25 mA output current? A: No. ISL21080CIH320Z-TK is rated for 7 mA maximum output current. If your application requires 25 mA, use REF2920AIDBZR, REF2920AIDBZT, or ISL21010CFH320Z-TK.

Q: What is the impact of the reduced input voltage minimum (2.7V) in the Renesas ISL21080 and ISL60002 series? A: Applications with input voltages between 2.098V and 2.7V cannot use ISL21080 or ISL60002 variants. The REF2920AIDBZR, REF2920AIDBZT, and ISL21010CFH320Z-TK support input voltages as low as 2.098V to 2.2V respectively.

Q: Are all substitute parts available in SOT-23-3 package? A: Yes. All listed substitute parts are available in SOT-23-3 (TO-236-3, SC-59) surface mount package, ensuring mechanical and electrical compatibility with the original REF2920AIDBZR footprint.

Q: What is the difference between Tape & Reel (TR) and Cut Tape & Digi-Reel packaging? A: Tape & Reel (TR) is continuous reel packaging suitable for high-volume automated assembly. Cut Tape & Digi-Reel is pre-cut tape suitable for lower-volume or mixed-component assembly. Both formats contain the same component; selection depends on assembly process requirements.

Q: Can I substitute REF2920AIDBZR with ISL60002BIH320Z-T7A in a high-temperature application? A: No. ISL60002BIH320Z-T7A has a maximum operating temperature of 85°C, while REF2920AIDBZR operates to 125°C. For applications requiring operation above 85°C, use REF2920AIDBZR, REF2920AIDBZT, or ISL21010CFH320Z-TK.

Q: Which substitute part offers the best temperature stability? A: ISL60002BIH320Z-T7A offers the lowest temperature coefficient at 20ppm/°C, followed by ISL60002CIH320Z-TK at 20ppm/°C. Both provide superior temperature stability compared to the REF2920AIDBZR at 100ppm/°C.

Q: Are all parts RoHS3 compliant? A: Yes. All listed parts, including the main part REF2920AIDBZR and all substitutes, are RoHS3 compliant with MSL Rating 1 (Unlimited moisture sensitivity level).