UCC2800QDREP Equivalent & Substitute Parts

Part Overview

The UCC2800QDREP is a Power Management IC (PMIC) functioning as a PWM Controller for multiple power supply topologies. Manufactured by Texas Instruments, this 8-SOIC surface mount device operates with a supply voltage range of 6.9V to 12V and is designed for applications requiring flexible power conversion control. The part is currently in active production status with 4,030 units in stock. Substitute parts are necessary when the primary part becomes unavailable, when specific automotive qualifications are required, or when alternative topologies better suit application requirements.

Substiute Parts

UCC2800QDREP

Texas InstrumentsIn Stock: 4113UCC2800QDREP Datasheet

Current PartRFQ

UCC2800QDRQ1

Texas InstrumentsIn Stock: 1651UCC2800QDRQ1 Datasheet

Parametric EquivalentRFQ

UCC2813QDR-0Q1

Texas InstrumentsIn Stock: 4383UCC2813QDR-0Q1 Datasheet

Parametric EquivalentRFQ

ISL6843IBZ-T

Renesas Electronics CorporationIn Stock: 17765ISL6843IBZ-T Datasheet

MFR RecommendedRFQ

LT1246CS8#PBF

Analog Devices Inc.In Stock: 1445LT1246CS8#PBF Datasheet

MFR RecommendedRFQ

LT1247CS8#PBF

Analog Devices Inc.In Stock: 2968LT1247CS8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UCC2800QDREP is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility without redesign.

Supply Voltage Range: The substitute must operate within or encompass the 6.9V to 12V supply voltage specification. Parts with extended ranges (such as 8.4V to 25V) are acceptable as they cover the required operating window.

Operating Temperature Range: Substitutes must support the -40°C to 125°C operating temperature range or a subset thereof. Parts rated to -40°C to 105°C are acceptable for applications not requiring the full upper temperature margin.

Compliance & Certifications: RoHS3 compliance and REACH unaffected status are mandatory for regulatory alignment. Automotive-grade parts with AEC-Q100 qualification provide enhanced reliability for automotive applications.

Mounting Type: Surface mount technology is required for all substitutes.

The substitute parts listed below meet these core criteria while offering varying topology capabilities and supply voltage ranges.

Parameter Comparison

Engineering Selection Recommendations

UCC2800QDRQ1: This Texas Instruments part is a direct parametric equivalent with identical package, supply voltage range (6.9V to 11V encompasses the required 6.9V to 12V window), and operating temperature specification. The addition of AEC-Q100 automotive qualification makes this suitable for automotive applications requiring enhanced reliability. Inventory availability is 1,586 units.

UCC2813QDR-0Q1: Also from Texas Instruments, this part maintains the same package and supply voltage range (6.9V to 12V) as the primary part. It includes AEC-Q100 automotive qualification and supports extended topology options (Boost, Flyback, Forward Converter). Operating temperature matches the primary specification. This part has the highest inventory availability at 4,318 units and is suitable for applications requiring automotive-grade components.

ISL6843IBZ-T: Manufactured by Renesas Electronics, this part offers a different topology focus (Boost, Flyback with synchronous rectifier capability) and extended supply voltage range (9V to 16V). The operating temperature range is reduced to -40°C to 105°C, which may not be suitable for applications requiring the full 125°C upper limit. MSL rating is 3 (168 Hours), requiring controlled storage conditions. This part is recommended only when the extended supply voltage range and synchronous rectifier features are required.

LT1246CS8#PBF and LT1247CS8#PBF: Both Analog Devices parts operate with extended supply voltage ranges (10V to 25V and 8.4V to 25V respectively) and reduced operating temperature ranges (0°C to 100°C). These parts are suitable only for applications with relaxed temperature requirements and higher supply voltages. The LT1246 supports isolated offline buck topology, while the LT1247 is a standard buck regulator. These are recommended only when the extended supply voltage capability is essential and temperature requirements are less stringent than the primary part.

Frequently Asked Questions (FAQ)

Q: Can UCC2800QDRQ1 be used as a direct replacement for UCC2800QDREP?

A: Yes. Both parts share identical package geometry (8-SOIC), supply voltage range (6.9V to 12V minimum coverage), operating temperature range (-40°C to 125°C), and RoHS3 compliance. The primary difference is the addition of AEC-Q100 automotive qualification on the UCC2800QDRQ1, making it suitable for automotive applications.

Q: What is the key difference between UCC2813QDR-0Q1 and UCC2800QDREP?

A: Both parts are Texas Instruments 8-SOIC PWM controllers with matching supply voltage and temperature ranges. The UCC2813QDR-0Q1 supports additional topologies (Boost, Flyback, Forward Converter) with a maximum duty cycle of 99%, while the UCC2800QDREP is a general-purpose PWM controller. The UCC2813 includes AEC-Q100 automotive qualification.

Q: Why do ISL6843IBZ-T and the Analog Devices parts have different operating temperature ranges?

A: The ISL6843IBZ-T operates to 105°C (TA), and the Analog Devices parts operate to 100°C (TA/TJ), both below the primary part's 125°C specification. These parts are suitable only for applications where the reduced upper temperature limit does not impact system performance or reliability margins.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What does MSL rating mean, and why does ISL6843IBZ-T differ?

A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to moisture before soldering. MSL 1 (Unlimited) allows indefinite storage under controlled conditions. ISL6843IBZ-T has MSL 3 (168 Hours), requiring more stringent moisture control during storage and handling to prevent soldering defects.

Q: Can I use LT1246CS8#PBF or LT1247CS8#PBF in place of UCC2800QDREP?

A: These parts are not recommended as direct replacements. While they share the 8-SOIC package, they operate with different supply voltage ranges (10V to 25V and 8.4V to 25V) and reduced operating temperature ranges (0°C to 100°C). Use these parts only when your application requires the extended supply voltage capability and does not require operation below 0°C or above 100°C.

Q: Which substitute part has the best inventory availability?

A: UCC2813QDR-0Q1 has the highest inventory at 4,318 units, followed by ISL6843IBZ-T at 17,700 units. However, ISL6843IBZ-T has reduced operating temperature range and higher MSL rating, so it should be selected based on application requirements rather than availability alone.