TCM828ECT713 Equivalent & Substitute Parts

Part Overview

The TCM828ECT713 is a charge pump switching regulator IC manufactured by Microchip Technology, designed for power management applications requiring positive or negative fixed output voltage generation. This component operates as a ratiometric regulator with a single output capable of delivering 25mA across an input voltage range of 1.5V to 5.5V. The part is classified as obsolete, making identification of active equivalent components essential for new designs and ongoing production support.

Substiute Parts

TCM828ECT713

Microchip TechnologyIn Stock: 1328TCM828ECT713 Datasheet

Current PartRFQ

MAX829EUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 8245MAX829EUK+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TCM828ECT713 is determined by strict equivalence across the following critical parameters:

Topology and Function: Both the main part and substitute must operate as charge pump switching regulators with ratiometric function and identical output configuration (positive or negative).

Electrical Specifications: Input voltage range (1.5V to 5.5V), output voltage capability (-Vin, 2Vin), and output current (25mA) must be identical or exceed the original specifications.

Package Compatibility: The substitute must use the same physical package (SC-74A, SOT-753 / SOT-23-5) to ensure direct board-level compatibility without layout modifications.

Compliance and Certifications: RoHS3 compliance, MSL rating, and operating temperature range must match or exceed the original part specifications.

The MAX829EUK+T from Analog Devices Inc./Maxim Integrated meets all substitution criteria, with the exception of switching frequency (35kHz versus 12kHz), which does not affect functional equivalence in applications where the original switching frequency is not a critical design constraint.

Parameter Comparison

Engineering Selection Recommendations

The MAX829EUK+T is a direct functional equivalent to the TCM828ECT713 for applications requiring charge pump voltage conversion with fixed output ratios. The substitute part maintains identical electrical specifications across input voltage range, output voltage capability, and output current capacity. Both components share the same physical package footprint (SOT-23-5), enabling direct board-level replacement without PCB layout modifications.

The primary distinction between these parts is the switching frequency: the TCM828ECT713 operates at 12kHz while the MAX829EUK+T operates at 35kHz. This difference does not affect functional compatibility in standard applications but may influence EMI characteristics and component selection for filtering networks.

The MAX829EUK+T holds active product status from Analog Devices Inc./Maxim Integrated, ensuring long-term availability and continued manufacturing support. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, confirming suitability for current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the MAX829EUK+T directly replace the TCM828ECT713 on existing PCBs?

A: Yes. Both parts use the identical SOT-23-5 package footprint (SC-74A, SOT-753), enabling direct pin-for-pin replacement without PCB modifications.

Q: What is the significance of the switching frequency difference (12kHz vs. 35kHz)?

A: Switching frequency affects EMI generation and filtering requirements. The higher switching frequency of the MAX829EUK+T (35kHz) may reduce EMI in certain frequency bands but requires evaluation of output filter performance in the specific application circuit.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the TCM828ECT713 and MAX829EUK+T maintain ROHS3 compliance, identical MSL ratings (1 - Unlimited), and equivalent operating temperature ranges (-40°C to 85°C).

Q: Why is the TCM828ECT713 listed as obsolete?

A: The TCM828ECT713 has reached end-of-life status from Microchip Technology. The MAX829EUK+T from Analog Devices Inc./Maxim Integrated provides continued availability for this functional category.

Q: Are the electrical output specifications identical between these parts?

A: Yes. Both parts provide identical output voltage options (-Vin, 2Vin), output current capacity (25mA), and input voltage range (1.5V to 5.5V).

Q: What should be considered when transitioning from TCM828ECT713 to MAX829EUK+T?

A: Verify that the higher switching frequency (35kHz) of the MAX829EUK+T does not introduce unacceptable EMI in the target application. Confirm that output filtering and decoupling networks remain adequate for the substitute part's operating characteristics.