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TPS70251PWPR Equivalent & Substitute Parts
Part Overview
The TPS70251PWPR is a linear voltage regulator IC from Texas Instruments designed for power management applications. It provides dual fixed outputs of 3.3V and 1.8V with output currents of 500mA and 250mA respectively. The device is classified as a positive fixed dual-output regulator in the Power Management (PMIC) category. The part is currently in active production status with 3189 units available in stock. Alternative models are identified to support supply chain flexibility and inventory management for applications requiring equivalent electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Output Configuration | Positive Fixed Dual Output |
| Voltage Output (Fixed) | 3.3V, 1.8V |
| Current Output | 500mA, 250mA |
| Voltage Input (Max) | 6V |
| Voltage Dropout (Max) | 0.28V @ 500mA |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 20-PowerTSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the TPS70251PWPR is determined by strict equivalence across the following critical parameters:
- Output voltage levels: 3.3V and 1.8V fixed outputs
- Output current ratings: 500mA and 250mA per channel
- Maximum input voltage: 6V
- Voltage dropout specification: 0.28V @ 500mA
- Package configuration: 20-PowerTSSOP form factor
- Mounting technology: Surface Mount
- Operating temperature range: -40°C to 125°C
- Regulatory compliance: ROHS3 Compliant
The TPS70151PWPR meets all specified electrical and mechanical parameters and qualifies as a parametric equivalent. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect functional equivalence and represent supply chain variations only.
Parameter Comparison
| Parameter | TPS70251PWPR | TPS70151PWPR |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Category | Power Management (PMIC) | Power Management (PMIC) |
| Output Configuration | Positive Fixed | Positive Fixed |
| Number of Regulators | 2 | 2 |
| Voltage Output (Min/Fixed) | 3.3V, 1.8V | 3.3V, 1.8V |
| Voltage Input (Max) | 6V | 6V |
| Voltage Dropout (Max) | 0.28V @ 500mA | 0.28V @ 500mA |
| Current Output | 500mA, 250mA | 500mA, 250mA |
| Current Quiescent (Iq) | 190 µA | 190 µA |
| Current Supply (Max) | 230 µA | 230 µA |
| Control Features | Enable, Power Good, Reset, Sequencing | Enable, Power Good, Reset, Sequencing |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) |
| Operating Temperature | -40°C to 125°C | -40°C to 125°C |
| Package / Case | 20-PowerTSSOP (0.173", 4.40mm Width) | 20-PowerTSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 2 (1 Year) | 2 (1 Year) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the TPS70251PWPR and TPS70151PWPR are active production devices from Texas Instruments with identical electrical specifications and package configurations. Selection between these parts should be based on packaging format availability and supply chain requirements. The TPS70251PWPR is supplied in Tape & Reel format, while the TPS70151PWPR is available in Cut Tape and Digi-Reel formats. Both devices maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.
Frequently Asked Questions (FAQ)
Q: Can TPS70151PWPR be used as a direct replacement for TPS70251PWPR?
A: Yes. The TPS70151PWPR is a parametric equivalent with identical electrical specifications, output voltage levels, current ratings, and package configuration. The difference is packaging format only.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel packaging is supplied on continuous carrier tape for automated assembly processes. Cut Tape and Digi-Reel are supplied in smaller quantities on cut tape segments. Both formats contain the same component with identical electrical performance.
Q: Are the control and protection features identical between these parts?
A: Yes. Both devices include Enable, Power Good, Reset, and Sequencing control features, plus Over Current, Over Temperature, Reverse Polarity, and Under Voltage Lockout (UVLO) protection.
Q: Do both parts support the same operating temperature range?
A: Yes. Both the TPS70251PWPR and TPS70151PWPR operate across -40°C to 125°C.
Q: Are there any compliance differences between these parts?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 2 (1 Year).
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