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LP3872EMP-2.5/NOPB Equivalent & Substitute Parts
Part Overview
The LP3872EMP-2.5/NOPB is a linear voltage regulator IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This positive fixed output regulator delivers 1.5A at 2.5V with a maximum dropout voltage of 0.55V at full load current. The device is packaged in SOT-223-5 surface mount configuration and is currently in active production status with 1498 units in stock inventory.
Substitute parts are identified when design requirements necessitate alternative components due to inventory constraints, supply chain considerations, or specific performance characteristics within the allowed electrical and mechanical parameter ranges for this product category.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | LP3872EMP-2.5/NOPB |
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Packaging | Tape & Reel (TR) |
| Supplier Device Package | SOT-223-5 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage - Output (Fixed) | 2.5V |
| Current - Output | 1.5A |
| Voltage - Input (Max) | 7V |
| Voltage Dropout (Max) | 0.55V @ 1.5A |
| Current - Quiescent (Iq) | 5 mA |
| Operating Temperature Range | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the LP3872EMP-2.5/NOPB are identified based on strict equivalence across the following critical parameters:
- Output voltage: 2.5V fixed
- Output current capability: 1.5A
- Input voltage maximum: 7V
- Package type: SOT-223-5 surface mount
- Mounting configuration: Surface mount
- Operating temperature range: -40°C ~ 125°C
- Product status: Active
- Compliance: ROHS3 Compliant, REACH Unaffected
Variations within acceptable ranges include quiescent current (Iq), dropout voltage, and current supply specifications. All substitute parts maintain identical output voltage, current rating, input voltage limits, and package configuration, ensuring direct functional interchangeability in circuit applications.
Parameter Comparison
| Parameter | LP3872EMP-2.5/NOPB | LP3855EMP-2.5/NOPB | LP3875EMP-2.5/NOPB | LP3965EMP-2.5/NOPB |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Category | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Supplier Device Package | SOT-223-5 | SOT-223-5 | SOT-223-5 | SOT-223-5 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Type | Fixed | Fixed | Fixed | Fixed |
| Voltage - Output (Fixed) | 2.5V | 2.5V | 2.5V | 2.5V |
| Current - Output | 1.5A | 1.5A | 1.5A | 1.5A |
| Voltage - Input (Max) | 7V | 7V | 7V | 7V |
| Voltage Dropout (Max) | 0.55V @ 1.5A | 0.44V @ 1.5A | 0.55V @ 1.5A | 0.55V @ 1.5A |
| Current - Quiescent (Iq) | 5 mA | 3 mA | 5 mA | 9 mA |
| Current - Supply (Max) | 15 mA | 10 mA | 15 mA | 15 mA |
| Operating Temperature Range | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Inventory Status | 1498 Pcs New Original In Stock | 1727 Pcs New Original In Stock | 1681 Pcs New Original In Stock | 1857 Pcs New Original In Stock |
Engineering Selection Recommendations
All substitute parts maintain active product status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory alignment with the primary part LP3872EMP-2.5/NOPB.
The LP3855EMP-2.5/NOPB offers improved dropout voltage performance at 0.44V compared to 0.55V, with reduced quiescent current of 3 mA and lower maximum supply current of 10 mA, making it suitable for applications prioritizing efficiency and lower standby power consumption.
The LP3875EMP-2.5/NOPB maintains identical electrical characteristics to the LP3872EMP-2.5/NOPB with 0.55V dropout voltage and 5 mA quiescent current, providing direct functional equivalence.
The LP3965EMP-2.5/NOPB operates with higher quiescent current of 9 mA while maintaining the same 0.55V dropout voltage and 1.5A output capability, suitable for applications where quiescent current variation is not a limiting factor.
All parts are available in active inventory with sufficient stock levels for production requirements.
Frequently Asked Questions (FAQ)
Q: Can LP3855EMP-2.5/NOPB be used as a direct replacement for LP3872EMP-2.5/NOPB?
A: Yes. Both parts share identical output voltage (2.5V), output current (1.5A), input voltage maximum (7V), package type (SOT-223-5), and operating temperature range (-40°C ~ 125°C). The LP3855EMP-2.5/NOPB features lower dropout voltage (0.44V vs 0.55V) and reduced quiescent current (3 mA vs 5 mA), making it functionally compatible with improved efficiency characteristics.
Q: What are the key differences between LP3872EMP-2.5/NOPB and LP3965EMP-2.5/NOPB?
A: Both parts deliver identical 2.5V at 1.5A with 0.55V dropout voltage and SOT-223-5 packaging. The primary difference is quiescent current: LP3872EMP-2.5/NOPB operates at 5 mA while LP3965EMP-2.5/NOPB operates at 9 mA. This variation does not affect functional interchangeability in standard applications.
Q: Are all substitute parts available in the same package configuration?
A: Yes. All substitute parts (LP3855EMP-2.5/NOPB, LP3875EMP-2.5/NOPB, LP3965EMP-2.5/NOPB) are supplied in SOT-223-5 surface mount package with Tape & Reel (TR) packaging, ensuring identical PCB layout and assembly compatibility.
Q: Do all parts meet the same compliance requirements?
A: Yes. All parts are ROHS3 compliant, REACH unaffected, with Moisture Sensitivity Level 1 (Unlimited), and maintain active product status. Compliance certifications are equivalent across all substitute parts.
Q: Which substitute part should be selected for low-power applications?
A: The LP3855EMP-2.5/NOPB is optimized for low-power applications with quiescent current of 3 mA and maximum supply current of 10 mA, compared to 5 mA and 15 mA respectively for the LP3872EMP-2.5/NOPB.
Q: Can these parts be used interchangeably in existing designs without PCB modification?
A: Yes. All substitute parts use identical SOT-223-5 package configuration and pinout, requiring no PCB layout changes or design modifications for direct substitution.
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