TPS70358PWPR Equivalent & Substitute Parts

Part Overview

The TPS70358PWPR is a linear voltage regulator IC from Texas Instruments designed for power management applications. It provides dual positive fixed outputs at 3.3V and 2.5V with output currents of 1A and 2A respectively. The device is housed in a 24-HTSSOP surface mount package and is currently in active production status. Finding equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or inventory requirements while maintaining identical electrical and mechanical performance.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Positive
Number of Regulators	2
Voltage - Output (Min/Fixed)	3.3V, 2.5V
Voltage - Input (Max)	6V
Current - Output	1A, 2A
Voltage Dropout (Max)	0.25V @ 1A
Current - Quiescent (Iq)	250 µA
PSRR	65dB (1kHz), 60dB (1kHz)
Control Features	Enable, Power Good, Reset, Sequencing
Protection Features	Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Operating Temperature	-40°C ~ 125°C
Package / Case	24-PowerTSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Active
RoHS Status	ROHS3 Compliant
MSL Rating	2 (1 Year)

Substitute Part Grouping Explanation

Substitution of the TPS70358PWPR is determined by strict equivalence across the following critical parameters:

Dual Output Configuration: Both regulators must provide fixed positive outputs at 3.3V and 2.5V
Output Current Ratings: 1A and 2A per channel
Input Voltage Specification: Maximum 6V input
Dropout Voltage: 0.25V @ 1A
Quiescent Current: 250 µA
PSRR Performance: 65dB (1kHz) and 60dB (1kHz)
Control and Protection Features: Enable, Power Good, Reset, Sequencing, Over Current, Over Temperature, Reverse Polarity, and UVLO protection
Package Compatibility: 24-PowerTSSOP surface mount package
Operating Temperature Range: -40°C to 125°C
Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The TPS70458PWPR meets all these criteria and qualifies as a parametric equivalent. The primary difference is packaging format (Tape & Reel versus standard packaging), which does not affect electrical performance or pin compatibility.

Parameter Comparison

Parameter	TPS70358PWPR	TPS70458PWPR	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Output Configuration	Positive	Positive	✓
Number of Regulators	2	2	✓
Voltage - Output (Min/Fixed)	3.3V, 2.5V	3.3V, 2.5V	✓
Voltage - Input (Max)	6V	6V	✓
Current - Output	1A, 2A	1A, 2A	✓
Voltage Dropout (Max)	0.25V @ 1A	0.25V @ 1A	✓
Current - Quiescent (Iq)	250 µA	250 µA	✓
PSRR	65dB (1kHz), 60dB (1kHz)	65dB (1kHz), 60dB (1kHz)	✓
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 ~ 125°C	-40°C ~ 125°C	✓
Package / Case	24-PowerTSSOP (0.173", 4.40mm Width)	24-PowerTSSOP (0.173", 4.40mm Width)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Product Status	Active	Active	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	2 (1 Year)	2 (1 Year)	✓

Engineering Selection Recommendations

Both the TPS70358PWPR and TPS70458PWPR are active production devices from Texas Instruments with identical electrical specifications and mechanical compatibility. Selection between these parts should be based on the following factors:

Product Availability: The TPS70358PWPR currently has 2999 units in stock, while the TPS70458PWPR has 955 units available. Choose based on immediate procurement requirements.

Packaging Format: The TPS70358PWPR is supplied in standard packaging, while the TPS70458PWPR is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated assembly processes and high-volume production runs.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory requirements.

Supply Chain Continuity: Either part can serve as a direct substitute without circuit redesign, PCB layout modification, or firmware changes. The identical pin configuration and electrical performance ensure drop-in compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TPS70458PWPR be used as a direct replacement for the TPS70358PWPR in existing designs?

A: Yes. The TPS70458PWPR is a parametric equivalent with identical electrical specifications, pin configuration, and package dimensions. No circuit modifications are required.

Q: What is the difference between the TPS70358PWPR and TPS70458PWPR?

A: The primary difference is packaging format. The TPS70358PWPR uses standard packaging, while the TPS70458PWPR is supplied in Tape & Reel format. All electrical and mechanical parameters are identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the TPS70358PWPR and TPS70458PWPR operate across the identical temperature range of -40°C to 125°C.

Q: Do both parts provide the same output voltage levels and current ratings?

A: Yes. Both parts deliver dual fixed outputs at 3.3V (1A) and 2.5V (2A) with identical dropout voltage, quiescent current, and protection features.

Q: Which part should be selected for high-volume automated assembly?

A: The TPS70458PWPR in Tape & Reel format is optimized for automated pick-and-place assembly processes typical in high-volume manufacturing.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL rating of 2 (1 Year).

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