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LP38693MP-3.3 Equivalent & Substitute Parts Reference Page
Part Overview
The Texas Instruments LP38693MP-3.3 is a Power Management (PMIC) Linear Voltage Regulator IC with a fixed positive 3.3V output and 500mA current capability, housed in a SOT-223-5 package. Key features include a maximum input voltage of 10V, low dropout voltage (0.55V @ 500mA), enable control, and over-temperature protection. The part status is Obsolete, which requires sourcing suitable equivalent or substitute models with identical electrical and mechanical specifications for continued production, maintenance, and design-in applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | LP38693MP-3.3 |
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Package / Case | TO-261-5, TO-261AB |
| Supplier Device Package | SOT-223-5 |
| Mounting Type | Surface Mount |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 10V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage Dropout (Max) | 0.55V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 55 µA |
| Current - Supply (Max) | 100 µA |
| PSRR | 55dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| Inventory | 1994 Pcs New Original In Stock |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitute parts for Voltage Regulator ICs in the LP38693MP-3.3 category must match the following mandatory parameters: output voltage, output current, dropout voltage, output configuration, output type, number of regulators, input voltage, package/case, mounting type, control and protection features, operating temperature, compliance ratings (RoHS, REACH), and supply package codes. Substitute parts listed below adhere strictly to these defined parameters, ensuring full electrical and mechanical compatibility.
Parameter Comparison
| Parameter | LP38693MP-3.3 | LP38693MP-3.3/NOPB | LP38693MPX-3.3/NOPB |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Category | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) |
| Package / Case | TO-261-5, TO-261AB | TO-261-5, TO-261AB | TO-261-5, TO-261AB |
| Supplier Device Package | SOT-223-5 | SOT-223-5 | SOT-223-5 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Output Configuration | Positive | Positive | Positive |
| Output Type | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | 1 | 1 |
| Voltage - Input (Max) | 10V | 10V | 10V |
| Voltage - Output (Min/Fixed) | 3.3V | 3.3V | 3.3V |
| Voltage Dropout (Max) | 0.55V @ 500mA | 0.55V @ 500mA | 0.55V @ 500mA |
| Current - Output | 500mA | 500mA | 500mA |
| Current - Quiescent (Iq) | 55 µA | 55 µA | 55 µA |
| Current - Supply (Max) | 100 µA | 100 µA | 100 µA |
| PSRR | 55dB (120Hz) | 55dB (120Hz) | 55dB (120Hz) |
| Control Features | Enable | Enable | Enable |
| Protection Features | Over Temperature | Over Temperature | Over Temperature |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Inventory | 1994 Pcs | 45978 Pcs | 4010 Pcs |
| Product Status | Obsolete | Active | Active |
Engineering Selection Recommendations
The LP38693MP-3.3 has an Obsolete product status. The substitute parts LP38693MP-3.3/NOPB and LP38693MPX-3.3/NOPB are both listed as Active, with inventories available. All substitutes share RoHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited). Selection between these substitutes should be based on product status and compliance certifications as provided.
Frequently Asked Questions (FAQ)
Q1: What criteria determine if a substitute part can be used for LP38693MP-3.3?
A1: Substitute parts must match all key parameters, including output voltage, output current, dropout voltage, configuration, package, mounting type, control/protection features, temperature range, and compliance statuses.
Q2: Are the listed substitute parts identical in electrical and mechanical parameters?
A2: Yes. All substitute parts listed match the main part's electrical and mechanical specifications based strictly on the provided parameters.
Q3: Do package or mounting codes differ among the substitute parts?
A3: No. All parts use TO-261-5, TO-261AB package, SOT-223-5 device package, and surface mount technology as specified.
Q4: Is there any variation in compliance or certification among these substitutes?
A4: No. All are ROHS3 compliant, REACH unaffected, and have identical Moisture Sensitivity Level (MSL) ratings.
Q5: Can the listed substitutes be directly swapped without adjustment?
A5: Yes, according to all listed electrical, mechanical, and compliance parameters.
Q6: Why is it important to select only Active status replacement parts?
A6: Active status ensures ongoing availability and lifecycle support, mitigating supply chain risks associated with obsolete components.
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