TPS70145PWPRG4 Equivalent & Substitute Parts

Part Overview

The TPS70145PWPRG4 is a linear voltage regulator IC from Texas Instruments designed for power management applications. It provides dual fixed outputs of 3.3V and 1.2V with output currents of 500mA and 250mA respectively. The device is housed in a 20-HTSSOP surface mount package and includes integrated control features such as Enable, Power Good, Reset, and Sequencing functions, along with comprehensive protection mechanisms including Over Current, Over Temperature, Reverse Polarity, and Under Voltage Lockout protection.

The TPS70145PWPRG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this specific voltage regulation topology and performance characteristics.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	2
Voltage - Input (Max)	6V
Voltage - Output (Min/Fixed)	3.3V, 1.2V
Voltage Dropout (Max)	0.28V @ 500mA
Current - Output	500mA, 250mA
Current - Quiescent (Iq)	190 µA
Current - Supply (Max)	230 µA
PSRR	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
Mounting Type	Surface Mount
Package / Case	20-PowerTSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)

Substitute Part Grouping Explanation

Substitute parts for the TPS70145PWPRG4 are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Electrical Parameters:

Dual output configuration with fixed positive voltage outputs of 3.3V and 1.2V
Output current ratings of 500mA and 250mA
Maximum input voltage of 6V
Voltage dropout specification of 0.28V @ 500mA
Quiescent current of 190 µA
PSRR of 60dB (1kHz)
Identical control features: Enable, Power Good, Reset, Sequencing
Identical protection features: Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout

Mechanical Parameters:

20-HTSSOP surface mount package
20-PowerTSSOP form factor (0.173", 4.40mm Width)
Operating temperature range of -40°C ~ 125°C

Compliance Parameters:

ROHS3 Compliant
Moisture Sensitivity Level 2 (1 Year)

The TPS70245PWPR meets all electrical and mechanical equivalence criteria and is classified as a parametric equivalent.

Parameter Comparison

Parameter	TPS70145PWPRG4	TPS70245PWPR
Manufacturer	Texas Instruments	Texas Instruments
Output Configuration	Positive	Positive
Output Type	Fixed	Fixed
Number of Regulators	2	2
Voltage - Input (Max)	6V	6V
Voltage - Output (Min/Fixed)	3.3V, 1.2V	3.3V, 1.2V
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
PSRR	60dB (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
Mounting Type	Surface Mount	Surface Mount
Package / Case	20-PowerTSSOP (0.173", 4.40mm Width)	20-PowerTSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)	2 (1 Year)
Product Status	Discontinued at DiGi Electronics	Active
Packaging	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

The TPS70245PWPR is a direct parametric equivalent to the TPS70145PWPRG4. Both devices are manufactured by Texas Instruments and share identical electrical specifications, control features, protection mechanisms, and package form factors.

The primary distinction between the two parts is product status and packaging format. The TPS70145PWPRG4 is discontinued at DiGi Electronics, while the TPS70245PWPR maintains active product status. The TPS70245PWPR is supplied in Tape & Reel (TR) packaging, whereas the TPS70145PWPRG4 was supplied in tube packaging. Both devices maintain ROHS3 compliance and identical moisture sensitivity ratings.

For new designs or replacement applications requiring the TPS70145PWPRG4, the TPS70245PWPR provides full functional and electrical equivalence with the advantage of active availability and ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the TPS70245PWPR be used as a direct replacement for the TPS70145PWPRG4?

A: Yes. The TPS70245PWPR is a parametric equivalent with identical electrical specifications, output voltage levels, current ratings, control features, and protection mechanisms. Both devices use the same 20-HTSSOP package and operate across the same temperature range.

Q: What is the difference between the TPS70145PWPRG4 and TPS70245PWPR?

A: The primary differences are product status and packaging format. The TPS70145PWPRG4 is discontinued at DiGi Electronics and supplied in tube packaging. The TPS70245PWPR is an active product supplied in Tape & Reel (TR) packaging. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting the TPS70245PWPR for the TPS70145PWPRG4?

A: No compatibility concerns exist. Both devices share identical pin configurations, package dimensions, electrical characteristics, and functional specifications. PCB layout and circuit design require no modifications.

Q: Does the packaging format difference affect circuit performance?

A: No. Packaging format (tube versus Tape & Reel) affects only component handling and assembly processes. Electrical performance and functional characteristics remain identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the TPS70145PWPRG4 and TPS70245PWPR are ROHS3 compliant with identical Moisture Sensitivity Level 2 (1 Year) ratings.

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