TLV1117CDCYR Equivalent & Substitute Parts

Part Overview

The TLV1117CDCYR is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This Surface Mount device delivers 800mA output current in a compact SOT-223-4 package and operates across an input voltage range of up to 15V with adjustable output from 1.25V to 13.7V. The device is Active status and ROHS3 compliant, making it suitable for modern electronic applications requiring regulated power supply functionality.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges, ensuring functional interchangeability in circuit designs.

Key Parameters

Parameter	TLV1117CDCYR
Manufacturer	Texas Instruments
Output Configuration	Positive
Output Type	Adjustable
Voltage - Input (Max)	15V
Voltage - Output (Min/Fixed)	1.25V
Voltage - Output (Max)	13.7V
Current - Output	800mA
Voltage Dropout (Max)	1.3V @ 800mA
Operating Temperature	0°C ~ 125°C
Package / Case	TO-261-4, TO-261AA
Supplier Device Package	SOT-223-4
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TLV1117CDCYR are classified based on the following critical parameters that determine functional interchangeability:

Primary Substitution Criteria:

Output Configuration: Positive
Output Type: Adjustable
Current - Output: 800mA (minimum requirement)
Voltage - Input (Max): 15V or greater
Voltage - Output (Min/Fixed): 1.25V or lower
Voltage - Output (Max): 13.7V or greater
Package / Case: TO-261-4, TO-261AA (mechanical compatibility)
Mounting Type: Surface Mount
Product Status: Active
RoHS Status: ROHS3 Compliant

Grouping Categories:

Group 1: Manufacturer Recommended Substitutes (Texas Instruments LM1117 Series) Parts LM1117IMP-ADJ/NOPB, LM1117IMPX-ADJ/NOPB, LM1117MP-ADJ/NOPB, and LM1117MPX-ADJ/NOPB meet all primary substitution criteria with identical electrical specifications and package compatibility. These devices feature improved quiescent current (5mA vs 10mA) and lower dropout voltage (1.2V vs 1.3V).

Group 2: Parametric Equivalent (Texas Instruments TLV1117 Series) Part TLV1117CDCYRG3 is a parametric equivalent variant of the main part, maintaining identical electrical characteristics and package specifications.

Group 3: Alternative Manufacturer Substitutes Parts LD1117SC-R and LD1117STR (STMicroelectronics) and LT1117CST#PBF and LT1117CST#TRPBF (Analog Devices Inc.) provide functional equivalence with compatible electrical parameters and SOT-223 packaging.

Group 4: Higher Current Alternative Part BA00BC0WFP-E2 (Rohm Semiconductor) offers 1A output current in TO-252-5 package, suitable for applications requiring higher current capacity with similar voltage regulation characteristics.

Parameter Comparison

Part Number	Manufacturer	Output (mA)	Vin (Max)	Vout Min	Vout Max	Dropout (Max)	Iq (mA)	Temp Range	Package	Status
TLV1117CDCYR	Texas Instruments	800	15V	1.25V	13.7V	1.3V @ 800mA	10	0°C ~ 125°C	SOT-223-4	Active
LM1117IMP-ADJ/NOPB	Texas Instruments	800	15V	1.25V	13.8V	1.2V @ 800mA	5	-40°C ~ 125°C	SOT-223-4	Active
LM1117IMPX-ADJ/NOPB	Texas Instruments	800	15V	1.25V	13.8V	1.2V @ 800mA	5	-40°C ~ 125°C	SOT-223-4	Active
LM1117MP-ADJ/NOPB	Texas Instruments	800	15V	1.25V	13.8V	1.2V @ 800mA	5	0°C ~ 125°C	SOT-223	Active
LM1117MPX-ADJ/NOPB	Texas Instruments	800	15V	1.25V	13.8V	1.2V @ 800mA	5	0°C ~ 125°C	SOT-223	Active
TLV1117CDCYRG3	Texas Instruments	800	15V	1.25V	13.7V	1.3V @ 800mA	10	0°C ~ 125°C	SOT-223-4	Active
LD1117SC-R	STMicroelectronics	800	15V	1.25V	15V	1.3V @ 800mA	5	-40°C ~ 125°C	SOT-223	Active
LD1117STR	STMicroelectronics	800	15V	1.25V	15V	1.2V @ 800mA	5	0°C ~ 125°C	SOT-223	Active
LT1117CST#PBF	Analog Devices Inc.	800	15V	1.25V	13.8V	1.2V @ 800mA	—	0°C ~ 125°C	SOT-223-3	Active
LT1117CST#TRPBF	Analog Devices Inc.	800	15V	1.25V	13.8V	1.2V @ 800mA	—	0°C ~ 125°C	SOT-223-3	Active
BA00BC0WFP-E2	Rohm Semiconductor	1000	16V	1.5V	12V	—	0.5	-40°C ~ 105°C	TO-252-5	Active

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility): The LM1117 series variants (LM1117IMP-ADJ/NOPB, LM1117IMPX-ADJ/NOPB, LM1117MP-ADJ/NOPB, LM1117MPX-ADJ/NOPB) from Texas Instruments are manufacturer-recommended substitutes with identical output current, voltage specifications, and SOT-223-4 package compatibility. These parts are Active status and ROHS3 compliant. Selection between these variants depends on operating temperature requirements and packaging format (Cut Tape vs. Tape & Reel).

Parametric Equivalent: TLV1117CDCYRG3 maintains identical electrical and mechanical specifications to the main part and serves as a direct replacement variant.

Alternative Manufacturer Options: STMicroelectronics LD1117 series (LD1117SC-R, LD1117STR) and Analog Devices LT1117 series (LT1117CST#PBF, LT1117CST#TRPBF) provide functional equivalence with compatible voltage regulation characteristics and SOT-223 packaging. All are Active status and ROHS3 compliant. Operating temperature ranges vary; verify application requirements before selection.

Higher Current Alternative: BA00BC0WFP-E2 from Rohm Semiconductor offers increased output current (1A vs 800mA) in TO-252-5 package. This part is suitable only for applications where higher current capacity is required and package change is acceptable. Operating temperature range is -40°C to 105°C.

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can LM1117IMP-ADJ/NOPB directly replace TLV1117CDCYR in my circuit? A: Yes. Both devices are 800mA positive adjustable linear regulators in SOT-223-4 packages with identical voltage specifications (1.25V to 13.8V output range). The LM1117IMP-ADJ/NOPB offers improved performance with lower quiescent current (5mA vs 10mA) and lower dropout voltage (1.2V vs 1.3V). Operating temperature range extends to -40°C, providing broader environmental coverage.

Q: What is the difference between LM1117MP-ADJ/NOPB and LM1117IMPX-ADJ/NOPB? A: Both devices have identical electrical specifications and 800mA output current. The primary difference is the operating temperature range: LM1117MP-ADJ/NOPB operates 0°C to 125°C, while LM1117IMPX-ADJ/NOPB operates -40°C to 125°C. Select based on your application's temperature requirements.

Q: Can I use LD1117STR instead of TLV1117CDCYR? A: Yes, with package consideration. LD1117STR is an 800mA adjustable regulator with compatible voltage specifications (1.25V to 15V output). It uses SOT-223 packaging, which is mechanically compatible with TO-261-4. Operating temperature range is 0°C to 125°C, matching the original part's range.

Q: Why would I choose BA00BC0WFP-E2 over other substitutes? A: BA00BC0WFP-E2 is selected only when your application requires higher output current (1A vs 800mA). This part uses TO-252-5 package, which differs from the original SOT-223-4, requiring PCB layout modification. Verify that your circuit design can accommodate the package change and the different pin configuration before selection.

Q: Are all listed substitutes ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant, maintaining regulatory alignment with the original TLV1117CDCYR.

Q: What does "Parametric Equivalent" mean for TLV1117CDCYRG3? A: TLV1117CDCYRG3 is a variant of the TLV1117 base product with identical electrical parameters and package specifications to TLV1117CDCYR. It serves as a direct replacement when the original part number is unavailable.

Q: How do I choose between Tape & Reel and Cut Tape packaging? A: Packaging format (Tape & Reel vs. Cut Tape) affects supply method and handling but does not impact electrical performance. Tape & Reel packaging is standard for high-volume automated assembly. Cut Tape is suitable for lower-volume or manual assembly operations. Select based on your manufacturing process requirements.

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