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Power Circuits / Linear Regulator ICs / L4938NPD
Datasheets
L4938NPD by: STMicroelectronics

DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, PLASTIC, MO-166, SOP-20

Part Details for L4938NPD by STMicroelectronics

Results Overview of L4938NPD by STMicroelectronics

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L4938NPD Information

L4938NPD by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Part Details for L4938NPD

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L4938NPD Part Data Attributes

Parametric Data
L4938NPD STMicroelectronics
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L4938NPD STMicroelectronics DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, PLASTIC, MO-166, SOP-20
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Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Package Description MO-166, SOP-20
Pin Count 20
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Adjustability FIXED/ADJUSTABLE
Dropout Voltage1-Max 0.4 V
Dropout Voltage1-Nom 0.2 V
Dropout Voltage2-Max 0.6 V
Input Voltage Absolute-Max 28 V
JESD-30 Code R-PDSO-G20
Length 15.9 mm
Line Regulation-Max 0.02%
Load Regulation-Max 0.05%
Load Regulation-Max(%) 1%
Number of Functions 1
Number of Outputs 2
Number of Terminals 20
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -40 °C
Output Current1-Max 0.05 A
Output Current2-Max 0.5 A
Output Voltage1-Max 5.1 V
Output Voltage1-Min 4.9 V
Output Voltage1-Nom 5 V
Output Voltage2-Max 20 V
Output Voltage2-Min 5 V
Package Body Material PLASTIC/EPOXY
Package Code HSOP
Package Equivalence Code SOP20,.56
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Qualification Status Not Qualified
Regulator Type FIXED/ADJUSTABLE POSITIVE MULTIPLE OUTPUT LDO REGULATOR
Seated Height-Max 3.6 mm
Surface Mount YES
Technology BIPOLAR
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Voltage Tolerance-Max 2%
Width 11 mm

Alternate Parts for L4938NPD

This table gives cross-reference parts and alternative options found for L4938NPD. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of L4938NPD, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
L4938ND STMicroelectronics Check for Price DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, SOP-20 L4938NPD vs L4938ND
L4938ED STMicroelectronics Check for Price DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, ROHS COMPLIANT, SOP-20 L4938NPD vs L4938ED
L4938EPD13TR STMicroelectronics Check for Price Advanced Voltage Regulator L4938NPD vs L4938EPD13TR
TLE4470GXUMA1 Infineon Technologies AG Check for Price Fixed/Adjustable Positive LDO Regulator, 2 Output, 4.9V1 Min, 5V2 Min, 5.1V1 Max, 20V2 Max, PDSO20, GREEN, PLASTIC, SOP-20 L4938NPD vs TLE4470GXUMA1
CS8363YDWFR20 Cherry Semiconductor Corporation Check for Price Fixed/Adjustable Positive LDO Regulator, 2 Output, 3.234V1 Min, 3.366V1 Max, PDSO20, L4938NPD vs CS8363YDWFR20
L4938ED013TR STMicroelectronics Check for Price DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, ROHS COMPLIANT, SOP-20 L4938NPD vs L4938ED013TR
TLE4470GXUMA2 Infineon Technologies AG Check for Price Fixed/Adjustable Positive LDO Regulator, 2 Output, 4.9V1 Min, 5V2 Min, 5.1V1 Max, 20V2 Max, PDSO20, GREEN, PLASTIC, SOP-20 L4938NPD vs TLE4470GXUMA2
L4938NPD013TR STMicroelectronics Check for Price DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, PLASTIC, MO-166, SOP-20 L4938NPD vs L4938NPD013TR
L4938ND013TR STMicroelectronics Check for Price DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO20, SOP-20 L4938NPD vs L4938ND013TR
NCV8614BMNR2G onsemi Check for Price LDO Regulator, 100 mA, Low Iq 5.0 V / 3.3 V / Adjustable, DFN20 6x5, 0.5P, 2500-REEL L4938NPD vs NCV8614BMNR2G

L4938NPD Related Parts

L4938NPD Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the L4938NPD is 28V, but it's recommended to keep it below 24V for reliable operation.

  • To ensure stability, make sure to add a capacitor (typically 10uF to 22uF) between the output and ground, and keep the output voltage below 15V. Also, avoid using long wires or traces between the output and input pins.

  • The minimum input voltage required for the L4938NPD to operate is 7.5V, but it's recommended to keep it above 9V for reliable operation.

  • The L4938NPD is rated for operation up to 125°C, but its performance may degrade above 100°C. It's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet.

  • The output voltage of the L4938NPD can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (typically 2.5V), and R1 and R2 are the resistors used in the output voltage divider.