TL5209DR Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The TL5209DR is a linear voltage regulator IC manufactured by Texas Instruments, designed for positive adjustable output applications with 500mA current capability in an 8-SOIC package. This device operates as a Last Time Buy product with 22,700 units currently in stock. The TL5209DR provides adjustable output voltage regulation from 2.5V to 6.5V with a maximum dropout voltage of 0.6V at 500mA output current. Due to its Last Time Buy status, identifying equivalent and substitute parts ensures design continuity and supply chain reliability for new production runs and long-term applications.

Key Parameters

Parameter	TL5209DR Value
Manufacturer	Texas Instruments
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	16V
Voltage - Output (Min/Fixed)	2.5V
Voltage - Output (Max)	6.5V
Voltage Dropout (Max)	0.6V @ 500mA
Current - Output	500mA
Current - Quiescent (Iq)	170 µA
PSRR	75dB (120Hz)
Control Features	Enable
Protection Features	Over Temperature, Reverse Polarity
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TL5209DR are categorized based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Output Configuration: Positive
Output Type: Adjustable (primary criterion for direct substitution)
Number of Regulators: 1
Current - Output: 500mA (minimum requirement)
Voltage - Input (Max): 16V or greater
Voltage - Output Range: Must encompass or exceed 2.5V to 6.5V
Package / Case: 8-SOIC form factor (for pin-compatible substitution)
Operating Temperature: -40°C ~ 125°C
RoHS Status: ROHS3 Compliant

Substitution Categories:

Category 1: Parametric Equivalents (Same Package, Identical Electrical Specifications)

TL5209DRG4: Identical electrical specifications, same 8-SOIC package, differs only in packaging format (Tape & Reel vs. Cut Tape) and product status (Obsolete)

Category 2: Direct Manufacturer Equivalents (Same Package, Compatible Electrical Specifications)

MIC5209YM and MIC5209YM-TR: Microchip Technology equivalents with identical 8-SOIC package, matching 500mA output current, compatible voltage ranges, and enhanced protection features (Over Current added)

Category 3: MFR Recommended Alternatives (Enhanced Specifications, Different Package)

TPS7A2601DRVR: Texas Instruments recommended upgrade with superior quiescent current (5 µA vs. 170 µA), wider output voltage range (1.24V to 17.4V), additional Power Good control feature, and 6-WSON package
NCP5500DADJR2G: onsemi alternative with 8-SOIC package compatibility, adjustable output (1.25V to 5V), same 500mA output current
SPX3819S-L/TR: MaxLinear alternative with 8-SOIC package, adjustable output (1.235V to 15.3V), superior quiescent current (8 µA), and extended temperature range support

Category 4: Functional Alternatives (Different Package, Different Output Type)

RT9080-12GJ5: Richtek fixed-output regulator (1.2V fixed) in TSOT-23-5 package with 600mA capability, suitable only for applications requiring fixed 1.2V output

Parameter Comparison

Parameter	TL5209DR	TL5209DRG4	MIC5209YM	MIC5209YM-TR	NCP5500DADJR2G	TPS7A2601DRVR	SPX3819S-L/TR	RT9080-12GJ5
Manufacturer	Texas Instruments	Texas Instruments	Microchip Technology	Microchip Technology	onsemi	Texas Instruments	MaxLinear, Inc.	Richtek USA Inc.
Output Configuration	Positive	Positive	Positive	Positive	Positive	Positive	Positive	Positive
Output Type	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Fixed
Voltage - Input (Max)	16V	16V	16V	16V	16V	18V	16V	5.5V
Voltage - Output (Min/Fixed)	2.5V	2.5V	1.8V, 2.5V	1.8V, 2.5V	1.25V	1.24V	1.235V	1.2V
Voltage - Output (Max)	6.5V	6.5V	2.5V, 15V	2.5V, 15V	5V	17.4V	15.3V	—
Voltage Dropout (Max)	0.6V @ 500mA	0.6V @ 500mA	0.6V @ 500mA	0.6V @ 500mA	0.7V @ 500mA	0.55V @ 500mA	0.7V @ 500mA	1.03V @ 600mA
Current - Output	500mA	500mA	500mA	500mA	500mA	500mA	500mA	600mA
Current - Quiescent (Iq)	170 µA	170 µA	170 µA	170 µA	500 µA	5 µA	8 µA	4 µA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 125°C (TJ)	-40°C ~ 125°C	-40°C ~ 85°C (TA)
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	6-WSON (2x2)	8-SOIC	SOT-23-5
Control Features	Enable	Enable	Enable	Enable	Enable	Enable, Power Good	Enable	Enable
Protection Features	Over Temperature, Reverse Polarity	Over Temperature, Reverse Polarity	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature, Short Circuit
Product Status	Last Time Buy	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

For Direct Pin-Compatible Substitution (8-SOIC Package):

Select MIC5209YM or MIC5209YM-TR for immediate drop-in replacement. Both parts maintain identical 8-SOIC package geometry, matching 500mA output current, and compatible voltage adjustment ranges. MIC5209YM-TR is preferred for new production due to Active product status and higher inventory availability (25,800 units). Both Microchip parts add Over Current protection compared to the original TL5209DR specification.

For Enhanced Performance with Package Change:

TPS7A2601DRVR offers superior performance characteristics including significantly reduced quiescent current (5 µA vs. 170 µA), extended output voltage range (1.24V to 17.4V), and additional Power Good control feature. This part requires PCB layout modification due to 6-WSON package format but delivers improved power efficiency for battery-powered applications.

For Adjustable Output with 8-SOIC Compatibility:

SPX3819S-L/TR provides 8-SOIC package compatibility with enhanced quiescent current performance (8 µA) and extended output voltage range (1.235V to 15.3V). NCP5500DADJR2G offers alternative 8-SOIC compatibility with narrower output voltage range (1.25V to 5V) and higher quiescent current (500 µA).

For Fixed Output Applications Only:

RT9080-12GJ5 is suitable only for applications requiring fixed 1.2V output. This part operates in TSOT-23-5 package with higher dropout voltage (1.03V @ 600mA) and reduced maximum operating temperature (85°C). This part is not recommended for designs requiring adjustable output voltage.

Product Status Considerations:

TL5209DRG4 shares identical electrical specifications with TL5209DR but carries Obsolete product status, making it unsuitable for new designs. All recommended substitutes maintain Active product status except TL5209DRG4. All substitute parts comply with ROHS3 and REACH requirements matching the original TL5209DR specification.

Frequently Asked Questions (FAQ)

Q: Can MIC5209YM directly replace TL5209DR without PCB modifications?

A: Yes. MIC5209YM and MIC5209YM-TR maintain identical 8-SOIC package pinout and electrical specifications. No PCB layout changes are required. Both parts are pin-compatible drop-in replacements.

Q: What is the key difference between MIC5209YM and MIC5209YM-TR?

A: Both parts are electrically identical. MIC5209YM ships in Tube packaging while MIC5209YM-TR ships in Cut Tape & Digi-Reel format. MIC5209YM-TR is preferred for automated assembly processes and higher volume production.

Q: Why does TPS7A2601DRVR have lower quiescent current than TL5209DR?

A: TPS7A2601DRVR represents a newer generation design with improved power efficiency. The 5 µA quiescent current (vs. 170 µA in TL5209DR) reduces standby power consumption significantly. This improvement requires 6-WSON package format instead of 8-SOIC.

Q: Is NCP5500DADJR2G suitable for applications requiring output voltage above 5V?

A: No. NCP5500DADJR2G maximum adjustable output is 5V, which is below the TL5209DR maximum of 6.5V. This part is suitable only for applications requiring output voltage between 1.25V and 5V.

Q: Can RT9080-12GJ5 replace TL5209DR in existing designs?

A: No. RT9080-12GJ5 is a fixed-output regulator (1.2V only) in TSOT-23-5 package. It cannot replace the adjustable-output TL5209DR. This part is suitable only for new designs requiring fixed 1.2V regulation.

Q: What is the impact of different Moisture Sensitivity Levels (MSL)?

A: TL5209DR and most substitutes carry MSL 1 (Unlimited shelf life). MIC5209YM and MIC5209YM-TR carry MSL 2 (1 Year shelf life), requiring controlled storage conditions. RT9080-12GJ5 carries MSL 3 (168 Hours), requiring immediate use after packaging opening.

Q: Which substitute offers the widest output voltage adjustment range?

A: TPS7A2601DRVR provides the widest range (1.24V to 17.4V), followed by SPX3819S-L/TR (1.235V to 15.3V). Both exceed the TL5209DR range of 2.5V to 6.5V.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance matching the original TL5209DR specification.

Q: What is the maximum operating temperature for NCP5500DADJR2G?

A: NCP5500DADJR2G operates to 85°C maximum, which is 40°C lower than TL5209DR (125°C). This limits suitability for high-temperature applications.

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