TLV1117CKTPR Equivalent & Substitute Parts

Part Overview

The TLV1117CKTPR is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 800mA output current with a fixed input voltage range up to 15V and adjustable output voltage from 1.25V to 13.7V. The device is housed in a TO-252-3 (DPAK) surface mount package.

This part carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this regulator.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLV1117CKTPR
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
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
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the TLV1117CKTPR are classified based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Output configuration: Positive adjustable
Package type: TO-252-3 (DPAK)
Output current: 800mA minimum
Input voltage rating: 15V minimum
Output voltage range: 1.25V to 13.7V minimum
Voltage dropout: 1.3V @ 800mA maximum

Grouping Logic:

Group 1 – Direct Texas Instruments Replacements (Active Status) Parts LM1117DT-ADJ/NOPB, LM1117DTX-ADJ/NOPB, LM1117IDT-ADJ/NOPB, and LM1117IDTX-ADJ/NOPB share identical electrical specifications with the TLV1117CKTPR. These are active production parts from the same manufacturer with improved quiescent current (5mA vs. 10mA) and lower dropout voltage (1.2V vs. 1.3V @ 800mA). Differences exist only in packaging format and operating temperature range.

Group 2 – Parametric Equivalent (Texas Instruments) TLV1117CKVURG3 matches the TLV1117CKTPR electrical specifications exactly, including 10mA quiescent current and 1.3V dropout voltage. It differs in packaging format (Tape & Reel vs. tube) and moisture sensitivity level.

Group 3 – STMicroelectronics Alternatives LD1117ADT-TR, LD1117DTC-R, and LD1117DTTR are STMicroelectronics equivalents with identical TO-252-3 packaging. These parts support 800mA to 1A output current and maintain the same adjustable output voltage range. Dropout voltage specifications are 1.2V to 1.3V @ 800mA.

Group 4 – onsemi Alternatives NCP1117DTARKG and NCV1117DTARKG are onsemi linear regulators with 1A output capability, supporting higher input voltage (20V) and extended output voltage range (18.8V max). NCV1117DTARKG includes automotive qualification (AEC-Q100) and extended temperature range (-40°C to 125°C).

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Current	Voltage - Input (Max)	Voltage - Output (Max)	Voltage Dropout @ 800mA	Quiescent Current	Operating Temperature	Package
TLV1117CKTPR	Texas Instruments	Obsolete	800mA	15V	13.7V	1.3V	10mA	0°C ~ 125°C	TO-252-3
LM1117DT-ADJ/NOPB	Texas Instruments	Active	800mA	15V	13.8V	1.2V	5mA	0°C ~ 125°C	TO-252-3
LM1117DTX-ADJ/NOPB	Texas Instruments	Active	800mA	15V	13.8V	1.2V	5mA	0°C ~ 125°C	TO-252-3
LM1117IDT-ADJ/NOPB	Texas Instruments	Active	800mA	15V	13.8V	1.2V	5mA	-40°C ~ 125°C	TO-252-3
LM1117IDTX-ADJ/NOPB	Texas Instruments	Active	800mA	15V	13.8V	1.2V	5mA	-40°C ~ 125°C	TO-252-3
TLV1117CKVURG3	Texas Instruments	Active	800mA	15V	13.7V	1.3V	10mA	0°C ~ 125°C	TO-252-3
LD1117ADT-TR	STMicroelectronics	Active	1A	15V	15V	1.3V	5mA	0°C ~ 125°C	TO-252-3
LD1117DTC-R	STMicroelectronics	Active	800mA	15V	15V	1.3V	5mA	-40°C ~ 125°C	TO-252-3
LD1117DTTR	STMicroelectronics	Active	800mA	15V	15V	1.2V	5mA	0°C ~ 125°C	TO-252-3
NCP1117DTARKG	onsemi	Active	1A	20V	18.8V	1.2V	10mA	0°C ~ 125°C	TO-252-3
NCV1117DTARKG	onsemi	Active	1A	20V	18.8V	1.2V	10mA	-40°C ~ 125°C	TO-252-3

Engineering Selection Recommendations

For Direct Replacement with Improved Performance: LM1117DT-ADJ/NOPB, LM1117DTX-ADJ/NOPB, LM1117IDT-ADJ/NOPB, and LM1117IDTX-ADJ/NOPB are recommended as primary substitutes. These Texas Instruments parts maintain full electrical compatibility while offering reduced quiescent current (5mA vs. 10mA) and lower dropout voltage (1.2V vs. 1.3V). All are ROHS3 compliant and in active production status. The IDT variants support extended operating temperature range (-40°C to 125°C).

For Parametric Equivalence: TLV1117CKVURG3 provides identical electrical specifications to the TLV1117CKTPR, including 10mA quiescent current and 1.3V dropout voltage. This part is suitable for applications requiring exact parameter matching and is available in Tape & Reel packaging format.

For Cross-Manufacturer Substitution: STMicroelectronics LD1117 series (LD1117ADT-TR, LD1117DTC-R, LD1117DTTR) and onsemi NCP1117/NCV1117 series provide functional equivalence with identical TO-252-3 packaging. These alternatives support equal or higher output current (800mA to 1A) and maintain adjustable output voltage capability. LD1117DTC-R and NCV1117DTARKG offer extended temperature range (-40°C to 125°C). All substitute parts are ROHS3 compliant and in active production.

For Automotive Applications: NCV1117DTARKG is qualified to AEC-Q100 automotive standards with extended temperature range (-40°C to 125°C) and is suitable for automotive-grade designs requiring higher input voltage tolerance (20V).

Frequently Asked Questions (FAQ)

Q: Can LM1117DT-ADJ/NOPB directly replace TLV1117CKTPR in existing designs? A: Yes. Both parts share identical electrical specifications for output current (800mA), input voltage (15V max), output voltage range (1.25V to 13.7V/13.8V), and TO-252-3 packaging. The LM1117DT-ADJ/NOPB offers improved performance with lower quiescent current (5mA vs. 10mA) and reduced dropout voltage (1.2V vs. 1.3V @ 800mA). Pin configuration and functional operation are identical.

Q: What is the difference between LM1117DT-ADJ/NOPB and LM1117IDT-ADJ/NOPB? A: Both parts are electrically identical with 800mA output, 1.2V dropout voltage, and 5mA quiescent current. The primary difference is operating temperature range: LM1117DT-ADJ/NOPB operates 0°C to 125°C, while LM1117IDT-ADJ/NOPB operates -40°C to 125°C. Select the IDT variant for applications requiring extended low-temperature performance.

Q: Are STMicroelectronics LD1117 parts compatible with the TLV1117CKTPR? A: Yes, with considerations. LD1117 series parts maintain identical TO-252-3 packaging and adjustable output voltage configuration. They support 800mA to 1A output current and 15V input voltage, meeting or exceeding TLV1117CKTPR specifications. All LD1117 variants are ROHS3 compliant and in active production. Verify specific dropout voltage and quiescent current requirements for your application.

Q: What is the advantage of onsemi NCV1117DTARKG over other substitutes? A: NCV1117DTARKG is AEC-Q100 automotive qualified with extended temperature range (-40°C to 125°C), higher input voltage rating (20V), and 1A output capability. It is suitable for automotive applications and designs requiring higher input voltage tolerance. Standard industrial applications may use NCP1117DTARKG, which is identical except for automotive qualification.

Q: Does packaging format affect electrical performance? A: No. Packaging format (Tube, Cut Tape & Digi-Reel, Tape & Reel) affects supply chain logistics and handling but does not alter electrical specifications or performance. Select packaging based on procurement and assembly requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (Texas Instruments LM1117 series, TLV1117CKVURG3, STMicroelectronics LD1117 series, and onsemi NCP1117/NCV1117 series) are ROHS3 compliant and REACH unaffected.

Q: Can I use a 1A-rated part (LD1117ADT-TR, NCP1117DTARKG, NCV1117DTARKG) in place of the 800mA TLV1117CKTPR? A: Yes. Higher current-rated parts are functionally compatible and provide design margin. All listed 1A variants maintain identical adjustable output voltage configuration and TO-252-3 packaging. Verify that your application circuit design accommodates the slightly different electrical characteristics (dropout voltage, quiescent current) of the selected substitute.

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