LP8340CDT-2.5/NOPB Equivalent & Substitute Parts

Part Overview

The LP8340CDT-2.5/NOPB is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed 2.5V output at 1A maximum current in a surface-mount TO-252-3 package. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	2.5V
Output Current	1A
Input Voltage (Max)	10V
Dropout Voltage (Max)	1.5V @ 1A
Package Type	TO-252-3 (DPAK)
Mounting Type	Surface Mount
Operating Temperature Range	0°C ~ 125°C
Protection Features	Over Current, Over Temperature

Substitute Part Grouping Explanation

Substitution eligibility for the LP8340CDT-2.5/NOPB is determined by the following critical parameters:

Fixed output voltage of 2.5V
Output current capability of 1A minimum
Surface-mount TO-252-3 package compatibility
Input voltage rating sufficient for application requirements
Dropout voltage performance within acceptable operating margins
Over-temperature protection as a minimum protection requirement

Two substitute parts meet these criteria and are identified as manufacturer-recommended alternatives.

Parameter Comparison

Parameter	LP8340CDT-2.5/NOPB	LP38690DT-2.5/NOPB	BA25BC0FP-E2
Manufacturer	Texas Instruments	Texas Instruments	Rohm Semiconductor
Product Status	Obsolete	Active	Active
Output Voltage	2.5V	2.5V	2.5V
Output Current	1A	1A	1A
Input Voltage (Max)	10V	10V	16V
Dropout Voltage (Max)	1.5V @ 1A	1.3V @ 1A	Not specified
Quiescent Current	100 µA	55 µA	0.5 mA
Package / Case	TO-252-3	TO-252-3	TO-252-3
Operating Temperature	0°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 105°C
Protection Features	Over Current, Over Temperature	Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	2 (1 Year)	1 (Unlimited)

Engineering Selection Recommendations

LP38690DT-2.5/NOPB (Texas Instruments) is the primary substitute. This part maintains identical output voltage and current specifications while offering improved performance characteristics: reduced dropout voltage (1.3V vs. 1.5V), lower quiescent current (55 µA vs. 100 µA), and extended operating temperature range (-40°C to 125°C). The device is currently in active production status. ROHS3 compliance and MSL-2 rating are maintained.

BA25BC0FP-E2 (Rohm Semiconductor) is an alternative substitute with identical output voltage and current ratings in the same TO-252-3 package. This part supports higher input voltage (16V maximum vs. 10V), includes both over-current and over-temperature protection, and carries MSL-1 rating. Operating temperature range is -40°C to 105°C. This device is actively produced and ROHS3 compliant.

Both substitutes are electrically and mechanically compatible with the obsolete LP8340CDT-2.5/NOPB in applications requiring 2.5V, 1A linear regulation in TO-252-3 surface-mount packaging.

Frequently Asked Questions (FAQ)

Q: Can LP38690DT-2.5/NOPB directly replace LP8340CDT-2.5/NOPB in existing designs?

A: Yes. Both devices share identical output voltage (2.5V), output current (1A), input voltage rating (10V maximum), and TO-252-3 package. The LP38690DT-2.5/NOPB offers superior performance with lower dropout voltage and quiescent current. Pin-to-pin compatibility is maintained.

Q: What are the key differences between the two substitute parts?

A: LP38690DT-2.5/NOPB (Texas Instruments) provides lower quiescent current (55 µA) and reduced dropout voltage (1.3V). BA25BC0FP-E2 (Rohm Semiconductor) supports higher input voltage (16V) and includes over-current protection. Temperature operating ranges differ: LP38690DT extends to -40°C; BA25BC0FP-E2 operates to 105°C maximum.

Q: Are both substitutes available in the same packaging?

A: Yes. Both LP38690DT-2.5/NOPB and BA25BC0FP-E2 are supplied in TO-252-3 (DPAK) surface-mount packages, identical to the original LP8340CDT-2.5/NOPB.

Q: Which substitute is recommended for new designs?

A: Selection depends on application requirements. For designs requiring extended low-temperature operation and minimal quiescent current, LP38690DT-2.5/NOPB is preferred. For applications requiring higher input voltage tolerance or extended over-current protection, BA25BC0FP-E2 is suitable.

Q: Are both substitutes RoHS compliant?

A: Yes. Both LP38690DT-2.5/NOPB and BA25BC0FP-E2 are ROHS3 compliant and REACH unaffected, matching the compliance status of the original part.

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