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Equivalent & Substitute Parts for LP5952LC-1.3 Linear Voltage Regulator
Part Overview
The LP5952LC-1.3, manufactured by Texas Instruments, is a positive fixed linear voltage regulator IC specifically designed to deliver a regulated output of 1.3V at up to 350mA. The device features a 6-USON (2x2) package suitable for surface mount applications and incorporates control and protection features such as Enable, Over Current, Over Temperature, Short Circuit, and Under Voltage Lockout (UVLO). This part is classified as obsolete, necessitating the consideration of equivalent substitute parts to maintain ongoing production requirements and ensure consistent availability.
Substiute Parts
Key Parameters
| Parameter | LP5952LC-1.3 |
|---|---|
| Manufacturer Part Number | LP5952LC-1.3 |
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Description | IC REG LINEAR 1.3V 350MA 6USON |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 4.5V |
| Voltage - Output (Min/Fixed) | 1.3V |
| Voltage Dropout (Max) | 0.25V @ 350mA |
| Current - Output | 350mA |
| Current - Quiescent (Iq) | 28 µA |
| Current - Supply (Max) | 100 µA |
| PSRR | 80dB ~ 64dB (10Hz ~ 100kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit, UVLO |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 6-UFDFN |
| Supplier Device Package | 6-USON (2x2) |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
| MSL | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8542.39.0060 |
Substitute Part Grouping Explanation
Equivalent and substitute parts for the LP5952LC-1.3 were selected strictly based on matching the following parameters: manufacturer part number, function (positive linear voltage regulation), output voltage specification (1.3V fixed), current output rating (350mA), package type (6-USON / 6-UFDFN surface mount), control and protection functions, supply and quiescent current, PSRR, operating temperature range, and regulatory/compliance status. Only those devices matching each of these explicit criteria are identified as direct substitutes.
Parameter Comparison
| Parameter | LP5952LC-1.3 (Texas Instruments) | LP5952LC-1.3/NOPB (National Semiconductor) |
|---|---|---|
| Category | Power Management (PMIC) | Power Management (PMIC) |
| Description | IC REG LINEAR 1.3V 350MA 6USON | LP5952 350MA DUAL-RAIL LINEAR RE |
| Output Configuration | Positive | Positive |
| Output Type | Fixed | Fixed |
| Number of Regulators | 1 | 1 |
| Voltage - Input (Max) | 4.5V | 4.5V |
| Voltage - Output (Min/Fixed) | 1.3V | 1.3V |
| Voltage Dropout (Max) | 0.25V @ 350mA | 0.25V @ 350mA |
| Current - Output | 350mA | 350mA |
| Current - Quiescent (Iq) | 28 µA | 28 µA |
| Current - Supply (Max) | 100 µA | 100 µA |
| PSRR | 80dB ~ 64dB (10Hz ~ 100kHz) | 80dB ~ 64dB (10Hz ~ 100kHz) |
| Control Features | Enable | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit, UVLO | Over Current, Over Temperature, Short Circuit, UVLO |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 6-UFDFN | 6-UFDFN |
| Supplier Device Package | 6-USON (2x2) | 6-USON (2x2) |
| Product Status | Obsolete | Active |
| ECCN | EAR99 | EAR99 |
Engineering Selection Recommendations
Selection between LP5952LC-1.3 and LP5952LC-1.3/NOPB can be made on the basis of availability, product status, and compliance designations. LP5952LC-1.3 is obsolete, whereas LP5952LC-1.3/NOPB is active and available in inventory. Both parts are classified under EAR99 for ECCN. The main part LP5952LC-1.3 is RoHS non-compliant, while RoHS compliance status for LP5952LC-1.3/NOPB is not provided in the input. Both parts have MSL 1 (Unlimited) and are unaffected by REACH.
Frequently Asked Questions (FAQ)
Q1: What parameters must match to substitute the LP5952LC-1.3 with LP5952LC-1.3/NOPB?
A1: All electrical parameters (output voltage, output current, dropout voltage, quiescent and supply current, PSRR), mechanical/package requirements (6-USON / 6-UFDFN), and control/protection features must match exactly as listed.
Q2: Is there any difference in mounting or footprint between the two part numbers?
A2: Both LP5952LC-1.3 and LP5952LC-1.3/NOPB are supplied in the same surface mount 6-USON (2x2) / 6-UFDFN package.
Q3: How does product status affect part selection?
A3: LP5952LC-1.3 is obsolete; LP5952LC-1.3/NOPB is active. Only active and available parts should be selected for ongoing design and production needs.
Q4: Are there any compliance implications when substituting?
A4: Compliance must be checked with respect to RoHS and REACH according to application requirements. Both parts are listed as REACH unaffected and have the same ECCN.
Q5: What is the inventory status for these parts?
A5: LP5952LC-1.3 has 737 pieces in stock, while LP5952LC-1.3/NOPB has 3124 pieces listed in inventory.
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