BA050LBSG2-TR Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The BA050LBSG2-TR is an active linear voltage regulator IC manufactured by Rohm Semiconductor, classified as a Power Management (PMIC) component. This positive fixed output regulator delivers 150mA at 5V with a maximum dropout voltage of 0.15V at 50mA. The device is in active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the specified parameter ranges.

Key Parameters

Parameter	BA050LBSG2-TR
Manufacturer	Rohm Semiconductor
Output Configuration	Positive Fixed
Output Voltage	5V
Output Current	150mA
Input Voltage (Max)	7V
Dropout Voltage (Max)	0.15V @ 50mA
Quiescent Current	15 µA
Package	SC-74A, SOT-753 (SMP5)
Operating Temperature	-40°C ~ 85°C
Control Features	Enable
Protection Features	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BA050LBSG2-TR are selected based on the following critical parameters:

Output voltage matching at 5V fixed output
Output current capability equal to or greater than 150mA
Surface mount packaging compatibility (SC-74A, SOT-753 family)
Positive fixed output configuration
Enable control feature availability
Over current and over temperature protection
Active product status with ROHS3 compliance

Substitutes are grouped into two categories based on output current capacity: parts rated for 150mA (direct equivalents) and parts rated for 50-100mA (reduced current capacity alternatives). Parts with reduced current capacity may be used in applications where the full 150mA output is not required.

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Max)	Dropout Voltage (Max)	Quiescent Current	Operating Temp	Package	Inventory
BA050LBSG2-TR	Rohm Semiconductor	150mA	7V	0.15V @ 50mA	15 µA	-40°C ~ 85°C	SC-74A, SOT-753	6200 Pcs
TC1185-5.0VCT713	Microchip Technology	150mA	6V	0.4V @ 150mA	80 µA	-40°C ~ 125°C	SC-74A, SOT-753	5600 Pcs
LT1761ES5-5#TRPBF	Analog Devices Inc.	100mA	20V	0.45V @ 100mA	Not specified	-40°C ~ 125°C	SOT-23-5 Thin, TSOT-23-5	35202 Pcs
LT1761ES5-5#TRMPBF	Analog Devices Inc.	100mA	20V	0.45V @ 100mA	Not specified	-40°C ~ 125°C	SOT-23-5 Thin, TSOT-23-5	2994 Pcs
TC1015-5.0VCT713	Microchip Technology	100mA	6V	0.25V @ 100mA	80 µA	-40°C ~ 125°C	SC-74A, SOT-753	5586 Pcs
LP2982IM5-5.0/NOPB	Texas Instruments	50mA	16V	0.33V @ 80mA	95 µA	-40°C ~ 125°C	SC-74A, SOT-753	3940 Pcs
LP2982AIM5X-5.0/NOPB	Texas Instruments	50mA	16V	0.33V @ 80mA	95 µA	-40°C ~ 125°C	SC-74A, SOT-753	4100 Pcs
LP2982AIM5-5.0/NOPB	Texas Instruments	50mA	16V	0.33V @ 80mA	95 µA	-40°C ~ 125°C	SC-74A, SOT-753	1300 Pcs
TC1014-5.0VCT713	Microchip Technology	50mA	6V	0.12V @ 50mA	80 µA	-40°C ~ 125°C	SC-74A, SOT-753	4215 Pcs

Engineering Selection Recommendations

Selection of substitute parts must be based on the following criteria:

Direct Equivalents (150mA Output Current): TC1185-5.0VCT713 from Microchip Technology is the only substitute rated for 150mA output current matching the BA050LBSG2-TR specification. This part maintains SC-74A/SOT-753 package compatibility, active product status, and ROHS3 compliance. Operating temperature range extends to 125°C compared to the main part's 85°C maximum.

Reduced Current Capacity Alternatives (100mA Output Current): TC1015-5.0VCT713 and LT1761ES5-5 series parts are rated for 100mA output current. These parts are suitable for applications where output current requirements do not exceed 100mA. All maintain active product status and ROHS3 compliance with extended operating temperature ranges to 125°C.

Limited Current Alternatives (50mA Output Current): LP2982 series parts from Texas Instruments and TC1014-5.0VCT713 from Microchip are rated for 50mA output current. These parts are suitable only for applications with output current requirements not exceeding 50mA. All maintain active product status and ROHS3 compliance.

All substitute parts listed carry active product status, ROHS3 compliance, MSL 1 rating, and REACH unaffected status matching the main part specifications.

Frequently Asked Questions (FAQ)

Q: Can TC1185-5.0VCT713 directly replace BA050LBSG2-TR? A: TC1185-5.0VCT713 is rated for 150mA output current matching the BA050LBSG2-TR specification. Both parts use SC-74A/SOT-753 packaging, feature enable control, over current and over temperature protection, and maintain ROHS3 compliance. The primary difference is maximum input voltage (6V vs 7V) and dropout voltage characteristics (0.4V @ 150mA vs 0.15V @ 50mA).

Q: What is the output current limitation for LP2982 series substitutes? A: LP2982 series parts are rated for 50mA maximum output current. These parts are not suitable for applications requiring the full 150mA output of the BA050LBSG2-TR. Use only in designs where output current does not exceed 50mA.

Q: Are all substitute parts compatible with the same PCB footprint? A: TC1185-5.0VCT713, TC1015-5.0VCT713, TC1014-5.0VCT713, and LP2982 series parts use SC-74A/SOT-753 packaging compatible with BA050LBSG2-TR. LT1761ES5-5 series parts use SOT-23-5 Thin (TSOT-23-5) packaging, which differs from the main part and may require PCB layout modification.

Q: What is the maximum input voltage for each substitute? A: Microchip TC series parts (TC1185, TC1015, TC1014) are rated for 6V maximum input. Texas Instruments LP2982 series is rated for 16V maximum input. Analog Devices LT1761ES5-5 series is rated for 20V maximum input. The main part BA050LBSG2-TR is rated for 7V maximum input.

Q: Do all substitute parts include enable control functionality? A: All substitute parts listed include enable control features matching the BA050LBSG2-TR specification.

Q: What protection features are included in substitute parts? A: All substitute parts include over current and over temperature protection. LT1761ES5-5 series additionally includes reverse polarity protection.

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