BA7805FP-E2 Equivalent & Substitute Parts

Part Overview

The BA7805FP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to provide a fixed positive 5V output at 1A current capacity. This Surface Mount device in TO-252-3 (DPAK) packaging is classified as Active product status and is RoHS3 compliant. Linear voltage regulators of this specification are essential in power management applications requiring stable 5V rails with moderate current draw. Substitute parts are identified based on matching electrical performance parameters, package compatibility, and regulatory compliance to ensure functional equivalence in circuit applications.

Key Parameters

Parameter	Value
Manufacturer	Rohm Semiconductor
Part Number	BA7805FP-E2
Category	Power Management (PMIC)
Output Voltage (Fixed)	5V
Output Current	1A
Input Voltage (Max)	25V
Voltage Dropout (Max)	2V @ 1A (Typ)
Quiescent Current	8 mA
PSRR	78dB (120Hz)
Protection Features	Over Current, Over Temperature
Operating Temperature Range	-40°C ~ 85°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant
MSL Rating	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the BA7805FP-E2 are qualified based on the following critical parameters that determine functional equivalence:

Electrical Compatibility Criteria:

Fixed output voltage of 5V
Output current rating of 1A or greater
Maximum input voltage of 25V or greater
Voltage dropout specification of 2V or less at rated current
Positive output configuration
Single regulator output

Mechanical & Package Compatibility:

TO-252-3 (DPAK) package with 2 Leads + Tab configuration
Surface Mount mounting type

Regulatory & Environmental Compliance:

RoHS3 compliance
Operating temperature range supporting -40°C minimum or lower
MSL rating of 1 or 3 (168 Hours)

Product Status:

Active product status ensuring ongoing availability and support

The following parts meet these substitution criteria and are presented in order of electrical and compliance alignment with the BA7805FP-E2.

Parameter Comparison

Parameter	BA7805FP-E2 (Rohm)	L7805CDT-TR (STMicroelectronics)	AS7805ADTR-E1 (Diodes)	AS7805ADTR-G1 (Diodes)	MC7805BDTG (onsemi)	MC7805CDTG (onsemi)
Output Voltage	5V	5V	5V	5V	5V	5V
Output Current	1A	1.5A	1A	1A	1A	1A
Input Voltage (Max)	25V	35V	25V	25V	35V	35V
Voltage Dropout (Max)	2V @ 1A	2V @ 1A	2V @ 1A	2V @ 1A	2V @ 1A	2V @ 1A
Quiescent Current	8 mA	8 mA	6 mA	6 mA	8 mA	6.5 mA
PSRR (120Hz)	78dB	62dB	70dB	70dB	68dB	83dB
Protection Features	Over Current, Over Temperature	Over Temperature, Short Circuit	Over Temperature, Short Circuit	Over Temperature, Short Circuit	Over Temperature, Short Circuit	Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 85°C	0°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	0°C ~ 125°C
Package	TO-252-3 DPAK	TO-252-3 DPAK	TO-252-3 DPAK	TO-252-3 DPAK	TO-252-3 DPAK	TO-252-3 DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and RoHS3 compliance, ensuring regulatory alignment with the BA7805FP-E2. Selection among these equivalents depends on specific application requirements:

L7805CDT-TR (STMicroelectronics): Offers higher output current capacity (1.5A) and maximum input voltage (35V), providing design margin for applications requiring higher current headroom. MSL rating of 1 supports unlimited moisture exposure. Operating temperature range of 0°C to 125°C is suitable for commercial and industrial applications.

AS7805ADTR-E1 and AS7805ADTR-G1 (Diodes Incorporated): Both variants provide identical electrical specifications with 1A output current and 25V maximum input voltage, matching the BA7805FP-E2 core parameters. Extended operating temperature range to -40°C to 125°C supports military and aerospace temperature requirements. MSL rating of 3 (168 Hours) requires controlled moisture handling during storage and assembly.

MC7805BDTG (onsemi): Provides 35V maximum input voltage with 1A output current and MSL rating of 1. Operating temperature range of -40°C to 125°C supports extended temperature applications. PSRR of 68dB meets noise rejection requirements.

MC7805CDTG (onsemi): Delivers highest PSRR performance at 83dB (120Hz), beneficial for noise-sensitive applications. Supports 35V maximum input voltage with 1A output current. Operating temperature range of 0°C to 125°C is suitable for commercial and industrial environments.

Frequently Asked Questions (FAQ)

Q: Can L7805CDT-TR replace BA7805FP-E2 in all applications?

A: L7805CDT-TR is electrically compatible as a direct substitute. The higher output current rating (1.5A vs 1A) and maximum input voltage (35V vs 25V) provide additional design margin. Both devices share identical voltage dropout specifications and DPAK packaging. Verify that the 0°C to 125°C operating temperature range meets your application requirements, as the BA7805FP-E2 supports -40°C minimum.

Q: What is the difference between AS7805ADTR-E1 and AS7805ADTR-G1?

A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications: 1A output current, 25V maximum input voltage, 5V fixed output, and -40°C to 125°C operating temperature. The primary difference is the manufacturing date code designation (E1 vs G1). Both are RoHS3 compliant with MSL rating of 3 (168 Hours), requiring controlled moisture handling during storage and assembly.

Q: Are all substitute parts in the same DPAK package?

A: Yes, all listed substitute parts use the TO-252-3 DPAK (2 Leads + Tab) package, designated as SC-63. This ensures direct PCB footprint compatibility with the BA7805FP-E2 without layout modifications.

Q: Which substitute offers the best noise performance?

A: MC7805CDTG provides the highest PSRR at 83dB (120Hz), compared to the BA7805FP-E2 at 78dB. This superior power supply rejection ratio is beneficial in noise-sensitive analog circuits. All other substitutes provide PSRR values between 62dB and 78dB.

Q: What does MSL rating mean for component selection?

A: MSL (Moisture Sensitivity Level) indicates moisture exposure limits during storage and assembly. MSL 1 (Unlimited) allows indefinite exposure without baking requirements. MSL 3 (168 Hours) limits moisture exposure to 168 hours at specified humidity before component baking is required. BA7805FP-E2, L7805CDT-TR, MC7805BDTG, and MC7805CDTG have MSL 1. AS7805ADTR-E1 and AS7805ADTR-G1 have MSL 3, requiring moisture control procedures.

Q: Can I use a substitute with higher maximum input voltage in a 25V application?

A: Yes. Substitutes with 35V maximum input voltage (L7805CDT-TR, MC7805BDTG, MC7805CDTG) are fully compatible in applications limited to 25V input. The higher voltage rating provides additional design margin and protection against transient overvoltage conditions.

Q: Which substitute has the lowest quiescent current?

A: AS7805ADTR-E1 and AS7805ADTR-G1 both specify 6 mA quiescent current, compared to 8 mA for the BA7805FP-E2. MC7805CDTG specifies 6.5 mA. Lower quiescent current reduces standby power consumption in battery-powered applications.

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