UCC2800MDREP Equivalent & Substitute Parts

Part Overview

The UCC2800MDREP is an active PWM controller manufactured by Texas Instruments, designed for multiple topology power supply applications. This 8-SOIC surface mount device operates as a power management integrated circuit (PMIC) with input voltage range of -0.3V to 6.3V and supply voltage of 6.9V to 12V. The part is currently in active production status with 3400 units in stock. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameters of this product category.

Key Parameters

Parameter	Value
Manufacturer Part Number	UCC2800MDREP
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Description	IC REG CTRLR MULT TOPOLOGY 8SOIC
Voltage - Input	-0.3V ~ 6.3V
Voltage - Supply	6.9V ~ 12V
Current - Supply	500 µA
Operating Temperature	-55°C ~ 125°C (TA)
Mounting Type	Surface Mount
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the UCC2800MDREP are qualified based on the following criteria:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Functional Category: Substitute parts must operate within the Power Management (PMIC) category as PWM or DC-DC controller integrated circuits.

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

Compliance Standards: All substitute parts must maintain ROHS3 compliance and EAR99 ECCN classification.

Electrical Operating Range: Substitute parts must support controller functionality within overlapping or compatible voltage supply ranges and operating temperature specifications.

The three identified substitute parts (ISL6843IBZ-T, LT1246CS8#PBF, LT1247CS8#PBF) meet these mechanical and electrical compatibility criteria while serving similar power management controller applications.

Parameter Comparison

Parameter	UCC2800MDREP	ISL6843IBZ-T	LT1246CS8#PBF	LT1247CS8#PBF
Manufacturer	Texas Instruments	Renesas Electronics Corporation	Analog Devices Inc.	Analog Devices Inc.
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)
Voltage - Supply (Vcc/Vdd)	6.9V ~ 12V	9V ~ 16V	10V ~ 25V	8.4V ~ 25V
Operating Temperature	-55°C ~ 125°C (TA)	-40°C ~ 105°C (TA)	0°C ~ 100°C (TA)	0°C ~ 100°C (TJ)
Frequency - Switching	Not specified	Up to 2MHz	Up to 1MHz	1MHz
ECCN	EAR99	EAR99	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001	8542.39.0001	8542.39.0001

Engineering Selection Recommendations

All substitute parts maintain active product status and ROHS3 compliance, meeting regulatory requirements equivalent to the UCC2800MDREP. The ISL6843IBZ-T, LT1246CS8#PBF, and LT1247CS8#PBF are qualified alternatives within the 8-SOIC package family.

ISL6843IBZ-T operates within a higher supply voltage range (9V ~ 16V) compared to the UCC2800MDREP (6.9V ~ 12V), with extended switching frequency capability up to 2MHz. Operating temperature range is -40°C ~ 105°C. Moisture sensitivity is rated at MSL 3 (168 Hours).

LT1246CS8#PBF supports supply voltage range of 10V ~ 25V with switching frequency up to 1MHz. Operating temperature range is 0°C ~ 100°C. Moisture sensitivity is MSL 1 (Unlimited), matching the UCC2800MDREP specification.

LT1247CS8#PBF operates with supply voltage range of 8.4V ~ 25V at 1MHz switching frequency. Operating temperature range is 0°C ~ 100°C. Moisture sensitivity is MSL 1 (Unlimited).

Selection between these substitutes depends on specific application voltage requirements, temperature operating range, and switching frequency specifications of the target circuit design.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the UCC2800MDREP?

A: Substitute parts must share the 8-SOIC package format, surface mount technology, active product status, and ROHS3 compliance. Electrical parameters including supply voltage range and operating temperature must be compatible with the application circuit requirements.

Q: Are all substitute parts pin-compatible with the UCC2800MDREP?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package. Pin-level compatibility requires verification against specific pinout diagrams and functional requirements of the target application, as package format alone does not guarantee functional pin assignment equivalence.

Q: What is the difference in moisture sensitivity between these parts?

A: The UCC2800MDREP and both Analog Devices parts (LT1246CS8#PBF, LT1247CS8#PBF) are rated MSL 1 (Unlimited), allowing indefinite shelf life under controlled conditions. The ISL6843IBZ-T is rated MSL 3 (168 Hours), requiring storage within 168 hours of moisture exposure or baking before reflow soldering.

Q: How do operating temperature ranges compare?

A: The UCC2800MDREP operates from -55°C to 125°C, providing the widest temperature range. The ISL6843IBZ-T operates -40°C to 105°C. Both Analog Devices parts operate 0°C to 100°C. Application requirements determine which temperature specification is necessary.

Q: Can these parts be used interchangeably in all applications?

A: Mechanical compatibility exists due to identical package specifications. Functional interchangeability requires circuit-level analysis of supply voltage requirements, switching frequency specifications, control feature requirements, and output topology compatibility with the specific application design.

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