Equivalent & Substitute Parts for LP38841S-1.5

Part Overview

The LP38841S-1.5 from Texas Instruments is a Power Management IC (PMIC) specifically designed as a linear, positive, fixed voltage regulator, delivering 1.5V output at up to 800mA in a TO-263 (DDPAK-5) surface-mount package. The part status is Obsolete, which makes identifying compatible and direct alternative models necessary for continued support, ongoing production, or replacement in maintenance scenarios. Substitute parts are required to ensure circuit compatibility, maintain compliance, and facilitate procurement.

Substiute Parts

LP38841S-1.5
Texas InstrumentsIn Stock: 991LP38841S-1.5 Datasheet
LP38841S-1.5
Current Part
LP38841S-1.5/NOPB
Texas InstrumentsIn Stock: 1144LP38841S-1.5/NOPB Datasheet
LP38841S-1.5/NOPB
Direct

Key Parameters

Parameter LP38841S-1.5 Value
ManufacturerTexas Instruments
CategoryPower Management (PMIC)
DescriptionIC REG LINEAR 1.5V 800MA DDPAK
Output ConfigurationPositive
Output TypeFixed
Number of Regulators1
Voltage - Input (Max)5.5V
Voltage - Output (Min/Fixed)1.5V
Voltage Dropout (Max)0.21V @ 800mA
Current - Output800mA
Current - Quiescent (Iq)30 µA
Current - Supply (Max)40 mA
PSRR80dB ~ 65dB (120Hz ~ 1kHz)
Control FeaturesEnable
Protection FeaturesOver Current, Over Temperature, Short Circuit
Operating Temperature-40°C ~ 125°C
Mounting TypeSurface Mount
Package / CaseTO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device PackageTO-263 (DDPAK-5)
Base Product NumberLP38841
RoHS StatusRoHS non-compliant
Moisture Sensitivity Level (MSL)3 (168 Hours)
REACH StatusREACH Unaffected
ECCNEAR99

Substitute Part Grouping Explanation

Substitution is based strictly on electrical and mechanical parameter alignment within the Power Management IC category. The substitute part, LP38841S-1.5/NOPB, is grouped as an equivalent due to matching these key parameters: manufacturer, output configuration, number of regulators, output voltage, maximum input voltage, dropout voltage at load, output current, regulator architecture, control and protection features, operating temperature range, surface-mount TO-263 (DDPAK-5) package, and moisture sensitivity. RoHS and REACH compliance status are also considered for process compatibility.

Parameter Comparison

Parameter LP38841S-1.5 LP38841S-1.5/NOPB
ManufacturerTexas InstrumentsTexas Instruments
CategoryPower Management (PMIC)Power Management (PMIC)
DescriptionIC REG LINEAR 1.5V 800MA DDPAKIC REG LINEAR 1.5V 800MA DDPAK
Output ConfigurationPositivePositive
Output TypeFixedFixed
Number of Regulators11
Voltage - Input (Max)5.5V5.5V
Voltage - Output (Min/Fixed)1.5V1.5V
Voltage Dropout (Max)0.21V @ 800mA0.21V @ 800mA
Current - Output800mA800mA
Current - Quiescent (Iq)30 µA30 µA
Current - Supply (Max)40 mA40 mA
PSRR80dB ~ 65dB (120Hz ~ 1kHz)80dB ~ 65dB (120Hz ~ 1kHz)
Control FeaturesEnableEnable
Protection FeaturesOver Current, Over Temperature, Short CircuitOver Current, Over Temperature, Short Circuit
Operating Temperature-40°C ~ 125°C-40°C ~ 125°C
Mounting TypeSurface MountSurface Mount
Package / CaseTO-263-6, D2PAK (5 Leads + Tab), TO-263BATO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device PackageTO-263 (DDPAK-5)TO-263 (DDPAK-5)
Base Product NumberLP38841LP38841
RoHS StatusRoHS non-compliantROHS3 Compliant
Moisture Sensitivity Level (MSL)3 (168 Hours)3 (168 Hours)
REACH StatusREACH UnaffectedREACH Affected
ECCNEAR99EAR99

Engineering Selection Recommendations

The LP38841S-1.5 has an obsolete status and is not RoHS compliant. For new designs or ongoing production, LP38841S-1.5/NOPB is a suitable substitute due to its active status and ROHS3 compliance. Both parts have matching moisture sensitivity levels and package configuration, facilitating direct process compatibility. Regulatory and environmental certifications such as RoHS and REACH vary and must be matched to application requirements.

Frequently Asked Questions (FAQ)

Q1: What criteria must be matched for a valid LP38841S-1.5 substitute?
A1: All key electrical parameters (output voltage, current, dropout voltage), configuration (number of regulators, output type), and mechanical attributes (TO-263/DDPAK-5 package, mounting type) must match.

Q2: Does LP38841S-1.5/NOPB have the same footprint and pinout as LP38841S-1.5?
A2: Both LP38841S-1.5 and LP38841S-1.5/NOPB share the TO-263 (DDPAK-5) footprint and pinout compatibility.

Q3: Are there certification differences between the main and substitute part?
A3: LP38841S-1.5/NOPB is ROHS3 compliant, while LP38841S-1.5 is RoHS non-compliant. REACH status differs.

Q4: Is there a difference in performance or features between LP38841S-1.5 and the substitute?
A4: All listed electrical and mechanical key parameters are identical as per the provided information.

Q5: What should be considered regarding environmental compliance?
A5: Select the part that aligns with end-use environmental and regulatory requirements; for RoHS-compliant applications, LP38841S-1.5/NOPB is suitable.

Q6: Does the substitute part have the same operating temperature range?
A6: Yes, both are rated for -40°C to 125°C.

Q7: What packaging and inventory differences exist?
A7: Both parts are supplied in tube packaging, with inventory levels specified by the provided data.

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