TC1224-2.5VCTTR Equivalent & Substitute Parts

Part Overview

The TC1224-2.5VCTTR is a linear voltage regulator IC manufactured by Microchip Technology, designed for positive fixed 2.5V output applications with 100mA current capacity. This Surface Mount device in SOT-23-5 packaging is classified as Active product status with full RoHS3 compliance. Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits equivalent electrical and mechanical specifications within the allowed parameter ranges for this power management category.

Key Parameters

Parameter	Value
Manufacturer Part Number	TC1224-2.5VCTTR
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Output Voltage (Fixed)	2.5V
Output Current	100mA
Input Voltage (Max)	6V
Voltage Dropout (Max)	0.25V @ 100mA
Package / Case	SOT-23-5 (SC-74A, SOT-753)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TC1224-2.5VCTTR are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or functionally equivalent specifications across all critical parameters: fixed 2.5V output voltage, SOT-23-5 package, Surface Mount configuration, -40°C to 125°C operating temperature range, and Active product status. These parts are direct functional replacements with no design modifications required.

Manufacturer Recommended Alternatives provide higher output current capacity (200mA to 300mA) or improved electrical performance characteristics while maintaining the 2.5V fixed output voltage, Surface Mount mounting, and core protection features. These parts are suitable when design specifications permit increased current capability or enhanced performance metrics.

Key parameters determining substitution eligibility:

Output Voltage: Fixed at 2.5V
Package Type: SOT-23-5 Surface Mount
Output Configuration: Positive
Protection Features: Over Current and Over Temperature
RoHS3 Compliance: Required
Product Status: Active

Parameter Comparison

Parameter	TC1224-2.5VCTTR	TC1015-2.5VCT713	TC2015-2.5VCTTR	BU25SD2MG-MTR	BU25TD3WG-TR	S-1333A25-M5T1U3	S-1333D25-M5T1U3
Manufacturer	Microchip	Microchip	Microchip	Rohm	Rohm	ABLIC	ABLIC
Output Voltage	2.5V	2.5V	2.5V	2.5V	2.5V	2.5V	2.5V
Output Current	100mA	100mA	100mA	200mA	200mA	300mA	300mA
Input Voltage (Max)	6V	6V	6V	6V	6V	5.5V	5.5V
Voltage Dropout (Max)	0.25V @ 100mA	0.25V @ 100mA	0.14V @ 100mA	0.18V @ 100mA	0.54V @ 200mA	0.31V @ 100mA	0.31V @ 100mA
Quiescent Current (Iq)	80 µA	80 µA	80 µA	80 µA	60 µA	1 µA	1 µA
PSRR	64dB (1kHz)	64dB (1kHz)	55dB (1kHz)	68dB (1kHz)	70dB (1kHz)	70dB (1kHz)	70dB (1kHz)
Package	SOT-23-5	SOT-23-5	SOT-23-5	5-SSOP	5-SSOP	SOT-23-5	SOT-23-5
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3

Engineering Selection Recommendations

Direct Parametric Equivalents (TC1015-2.5VCT713, TC2015-2.5VCTTR): These Microchip parts maintain identical output voltage, current rating, and package configuration. TC1015-2.5VCT713 provides equivalent performance with higher inventory availability (6398 pcs). TC2015-2.5VCTTR offers improved voltage dropout performance (0.14V vs 0.25V) with the largest inventory stock (9720 pcs), suitable when lower dropout voltage benefits circuit design.

Higher Current Capacity Alternatives (BU25SD2MG-MTR, BU25TD3WG-TR): Rohm Semiconductor parts rated for 200mA output current accommodate designs requiring increased current delivery. BU25SD2MG-MTR includes AEC-Q100 automotive qualification and superior PSRR (68dB). BU25TD3WG-TR provides highest PSRR (70dB) with largest inventory (22990 pcs) but exhibits higher dropout voltage (0.54V @ 200mA) and reduced operating temperature maximum (85°C).

Ultra-Low Quiescent Current Alternatives (S-1333A25-M5T1U3, S-1333D25-M5T1U3): ABLIC parts deliver 300mA output current with exceptional quiescent current of 1 µA, suitable for battery-powered or low-power standby applications. Both maintain SOT-23-5 packaging and 2.5V fixed output. Maximum input voltage is 5.5V (vs 6V for Microchip parts). Operating temperature maximum is 85°C.

All substitute parts maintain Active product status, RoHS3 compliance, and required protection features (Over Current, Over Temperature). Selection should prioritize inventory availability, operating temperature requirements, and specific application current demands.

Frequently Asked Questions (FAQ)

Q: Can TC1015-2.5VCT713 directly replace TC1224-2.5VCTTR without PCB modifications?

A: Yes. Both parts share identical electrical specifications (2.5V output, 100mA current, 0.25V dropout), SOT-23-5 package pinout, and Surface Mount configuration. No design changes are required.

Q: What is the primary advantage of TC2015-2.5VCTTR over the main part?

A: TC2015-2.5VCTTR reduces voltage dropout to 0.14V at 100mA (compared to 0.25V), resulting in lower heat dissipation and improved efficiency in power-constrained applications. Electrical specifications and package are otherwise identical.

Q: When should BU25SD2MG-MTR or BU25TD3WG-TR be selected instead of parametric equivalents?

A: These Rohm parts are selected when circuit design requires output current exceeding 100mA (up to 200mA). Both maintain 2.5V fixed output and Surface Mount configuration. BU25SD2MG-MTR is preferred for automotive applications (AEC-Q100 qualified). BU25TD3WG-TR offers superior PSRR (70dB) but operates to maximum 85°C.

Q: Are S-1333A25-M5T1U3 and S-1333D25-M5T1U3 suitable for all TC1224-2.5VCTTR applications?

A: These ABLIC parts are suitable when application design permits 300mA output current and can operate within 5.5V maximum input voltage (vs 6V for TC1224). Exceptional 1 µA quiescent current makes them ideal for battery-powered designs. Operating temperature maximum of 85°C must be verified against application requirements.

Q: Do all substitute parts maintain the same pinout as TC1224-2.5VCTTR?

A: TC1015-2.5VCT713, TC2015-2.5VCTTR, S-1333A25-M5T1U3, and S-1333D25-M5T1U3 share identical SOT-23-5 pinout. BU25SD2MG-MTR and BU25TD3WG-TR use 5-SSOP package with different pinout; PCB layout modifications are required for these parts.

Q: Which substitute part has the highest inventory availability?

A: BU25TD3WG-TR maintains the largest stock (22990 pcs), followed by TC2015-2.5VCTTR (9720 pcs) and TC1015-2.5VCT713 (6398 pcs).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 Compliant status, matching the main part specification.

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