TPS7A0318PDBVR Equivalent & Substitute Parts

Part Overview

The TPS7A0318PDBVR is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed positive 1.8V output at 200mA with a maximum dropout voltage of 0.45V at full load current. The regulator operates across an input voltage range up to 6V and includes integrated protection features for over-current, over-temperature, and under-voltage lockout conditions. The part is supplied in SOT-23-5 surface mount packaging with Cut Tape and Digi-Reel® options.

The TPS7A0318PDBVR maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set, enabling direct replacement in applications where packaging format and inventory availability require alternative sourcing.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	1.8	V
Output Current	200	mA
Input Voltage (Maximum)	6	V
Dropout Voltage @ 200mA	0.45	V
Quiescent Current	300	nA
PSRR @ 1kHz	55	dB
Operating Temperature Range	-40 to 125	°C
Package Type	SOT-23-5 (SC-74A)	—
Mounting Type	Surface Mount	—
Control Features	Enable	—
Protection Features	Over Current, Over Temperature, UVLO	—

Substitute Part Grouping Explanation

Substitute parts for the TPS7A0318PDBVR are classified based on strict electrical and mechanical parameter equivalence. The primary substitution criteria are:

Critical Parameters for Substitution:

Fixed output voltage of 1.8V
Output current capability of 200mA
SOT-23-5 surface mount package (SC-74A, SOT-753)
Operating temperature range of -40°C to 125°C
Presence of Enable control feature and Over Current, Over Temperature, and UVLO protection

Packaging Format Variations: Substitutes are available in two packaging configurations: Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR). These represent different supply formats for the identical component and do not affect electrical performance or mechanical compatibility.

Secondary Parameter Variations: Some substitute parts exhibit differences in quiescent current (Iq), dropout voltage, PSRR characteristics, and maximum input voltage. These variations are documented in the parameter comparison table and do not prevent functional substitution when the primary criteria are met.

Parameter Comparison

Parameter	TPS7A0318PDBVR	TPS7A0218PDBVR	TPS7A0318DBVR	TPS7A0518PDBVR	TPS7A0518PDBVT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Output Voltage (Fixed)	1.8V	1.8V	1.8V	1.8V	1.8V
Output Current	200mA	200mA	200mA	200mA	200mA
Input Voltage (Max)	6V	6V	6V	5.5V	5.5V
Dropout Voltage @ 200mA	0.45V	0.45V	0.45V	0.382V	0.382V
Quiescent Current (Iq)	300nA	60nA	300nA	3µA	3µA
PSRR	55dB (1kHz)	55dB (1kHz)	55dB (1kHz)	40dB (1kHz ~ 1MHz)	40dB (1kHz ~ 1MHz)
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Control Features	Enable	Enable	Enable	Enable	Enable
Protection Features	Over Current, Over Temperature, UVLO	Over Current, Over Temperature, UVLO	Over Current, Over Temperature, UVLO	Over Current, Over Temperature, UVLO	Over Current, Over Temperature, UVLO
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain Active product status with full RoHS3 compliance and REACH unaffected designation, ensuring regulatory alignment with the original TPS7A0318PDBVR component.

TPS7A0218PDBVR provides identical electrical specifications to the main part with the exception of reduced quiescent current (60nA versus 300nA). This substitute is available in Tape & Reel packaging format and is suitable for applications where lower standby power consumption is beneficial without compromising other performance characteristics.

TPS7A0318DBVR is electrically identical to the TPS7A0318PDBVR and differs only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel®). This substitute is appropriate for high-volume production environments requiring reel-based component delivery.

TPS7A0518PDBVR and TPS7A0518PDBVT represent the TPS7A0518 series with reduced maximum input voltage (5.5V versus 6V), lower dropout voltage (0.382V versus 0.45V), and higher quiescent current (3µA versus 300nA). These parts are suitable for applications operating within the 5.5V input constraint and where lower dropout voltage provides operational advantage. The PDBVR variant uses Cut Tape & Digi-Reel® packaging, while PDBVT uses Tape & Reel packaging.

Component selection should be based on specific application requirements regarding input voltage range, quiescent current constraints, and packaging format availability.

Frequently Asked Questions (FAQ)

Q: Can TPS7A0218PDBVR replace TPS7A0318PDBVR in all applications?

A: TPS7A0218PDBVR is electrically compatible with TPS7A0318PDBVR for all applications requiring 1.8V fixed output at 200mA with 6V maximum input voltage. The primary difference is quiescent current (60nA versus 300nA), which benefits low-power standby scenarios. All other electrical and mechanical parameters are identical.

Q: What is the difference between Cut Tape & Digi-Reel® and Tape & Reel packaging?

A: Cut Tape & Digi-Reel® packaging supplies individual components on cut tape with optional reel format, suitable for small to medium volume orders and manual assembly. Tape & Reel packaging supplies components on continuous reels optimized for automated high-volume production. Both formats contain identical components in SOT-23-5 packages with no electrical performance difference.

Q: Can TPS7A0518PDBVR be used in place of TPS7A0318PDBVR?

A: TPS7A0518PDBVR is compatible with TPS7A0318PDBVR when the application input voltage does not exceed 5.5V. The TPS7A0518 series offers lower dropout voltage (0.382V versus 0.45V) but exhibits higher quiescent current (3µA versus 300nA). Applications requiring the full 6V input range must use TPS7A0318PDBVR or TPS7A0218PDBVR.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are RoHS3 compliant and REACH unaffected, maintaining full regulatory equivalence with the TPS7A0318PDBVR.

Q: What determines whether a part is a valid substitute?

A: Valid substitutes maintain identical fixed output voltage (1.8V), output current (200mA), SOT-23-5 package type, operating temperature range (-40°C to 125°C), and protection features (Over Current, Over Temperature, UVLO). Variations in quiescent current, dropout voltage, PSRR, and maximum input voltage do not prevent substitution when primary criteria are met, but application-specific requirements must be evaluated.

Q: Is TPS7A0318DBVR electrically identical to TPS7A0318PDBVR?

A: TPS7A0318DBVR is electrically identical to TPS7A0318PDBVR. The only difference is packaging format: DBVR uses Tape & Reel while PDBVR uses Cut Tape & Digi-Reel®. Both contain the same component in SOT-23-5 packages.

Q: Which substitute offers the lowest dropout voltage?

A: TPS7A0518PDBVR and TPS7A0518PDBVT both offer 0.382V dropout voltage at 200mA, compared to 0.45V for TPS7A0318PDBVR and TPS7A0218PDBVR. Lower dropout voltage provides greater headroom in applications with limited input voltage margin.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message