L5959Alternatives & Equivalent Parts

L5959 is marked OBSOLETE. Compare the equivalents below, check each part's lifecycle, and request a quote on a suitable replacement.

About L5959

L5959 is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Transistor Outline, Vertical package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.

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Specification Comparison

ParameterL5959SourceL5957L5980L5983L5962
ManufacturerSTMicroelectronicsSTMicroelectronicsSTMicroelectronicsSTMicroelectronicsSTMicroelectronics
Package TypeTransistor Outline, VerticalOtherSmall Outline No-leadSmall Outline No-leadSmall Outline Packages
Pin Count15158836
Temperature Range——-40.0°C ~ 150.0°C—-40.0°C ~ 85.0°C
Price$2.5625$3.1800——$5.7700
StockIn StockIn StockIn StockIn StockIn Stock
LifecycleOBSOLETENOT RECOMMENDEDOBSOLETEOBSOLETENOT RECOMMENDED
Electrical Parameters
YTEOL03003
Dropout Voltage1-Max0.9 V0.6 V———
Dropout Voltage1-Nom0.45 V————
Dropout Voltage2-Max0.9 V1.5 V———
Input Voltage-Max18 V18 V18 V18 V—
Input Voltage-Min9.5 V9 V2.9 V2.9 V—
JESD-30 CodeR-PZFM-T15R-XZFM-T15S-PDSO-N8S-PDSO-N8R-PDSO-G36
JESD-609 Codee3e3e3e3e3
Load Regulation-Max0.02%0.1%———
Number of Functions11111
Number of Outputs44———
Operating Temperature TJ-Max150 °C150 °C———
Operating Temperature TJ-Min-55 °C-55 °C———
Output Current1-Max0.1 A0.5 A———
Output Current2-Max0.2 A0.8 A———
Output Voltage1-Max10.5 V9 V———
Output Voltage1-Min9.5 V8 V———
Output Voltage1-Nom10 V8.5 V———
Output Voltage2-Max8.7 V5.3 V———
Output Voltage2-Min8.3 V4.75 V———
Output Voltage2-Nom8.5 V5 V———
Package Body MaterialPLASTIC/EPOXYUNSPECIFIEDPLASTIC/EPOXYPLASTIC/EPOXYPLASTIC/EPOXY
Package ShapeRECTANGULARRECTANGULARSQUARESQUARERECTANGULAR
Package StyleFLANGE MOUNTFLANGE MOUNTSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILESMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILESMALL OUTLINE
Packing MethodTUBETRAY———
Qualification StatusNot QualifiedNot QualifiedNot QualifiedNot QualifiedNot Qualified
Regulator TypeFIXED POSITIVE MULTIPLE OUTPUT LDO REGULATORFIXED POSITIVE MULTIPLE OUTPUT LDO REGULATOR———
Surface MountNONOYESYESYES
Terminal FinishMatte Tin (Sn) - annealedTin (Sn)Matte Tin (Sn) - annealedMatte Tin (Sn) - annealedMatte Tin (Sn) - annealed
Terminal FormTHROUGH-HOLETHROUGH-HOLENO LEADNO LEADGULL WING
Terminal Pitch1.27 mm1.27 mm0.5 mm0.5 mm0.635 mm
Terminal PositionZIG-ZAGZIG-ZAGDUALDUALDUAL
Voltage Tolerance-Max5%6%———
Adjustability—FIXED———
Input Voltage Absolute-Max—18 V———
Line Regulation-Max—0.05%———
Package Equivalence Code—ZIP15,.2,.17TBSOLCC8,.11,20SOLCC8,.11,20SSOP36,.56
Technology—BIPOLAR——BCDMOS
Analog IC - Other Type——SWITCHING REGULATORSWITCHING REGULATORSWITCHING REGULATOR
Control Mode——VOLTAGE-MODEVOLTAGE-MODEVOLTAGE-MODE
Control Technique——PULSE WIDTH MODULATION——
Input Voltage-Nom——12 V12 V—
Output Current-Max——1.6 A1.5 A—
Peak Reflow Temperature (Cel)——260260245
Switcher Configuration——BUCK-BOOSTBUCKSINGLE
Switching Frequency-Max——1000 kHz1000 kHz400 kHz
Time@Peak Reflow Temperature-Max (s)——303030
Supply Current-Max (Isup)————0.09 mA
Supply Voltage-Nom (Vsup)————14.4 V
Temperature Grade————INDUSTRIAL

Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.

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Get one quote covering all 4 alternatives for L5959 — response within 24 hours.

Quick Links

L5957by STMicroelectronics

Fixed Positive LDO Regulator, 4 Output, 8.5V1, 5V2, BIPolar, ZFM15

L5980by STMicroelectronics

Switching Regulator, Voltage-mode, 1.6A, 1000kHz Switching Freq-Max, PDSO8

L5983by STMicroelectronics

Switching Regulator, Voltage-mode, 1.5A, 1000kHz Switching Freq-Max, PDSO8

L5962by STMicroelectronics

Switching Regulator, Voltage-mode, 400kHz Switching Freq-Max, BCDMOS, PDSO36

Why Look for Alternatives?

Finding alternatives for L5959 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.

When evaluating L5959 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.

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FAQ

What is equivalent to L5959?

Known equivalents for L5959 include L5957, L5980, L5983. Contact FindMyChip for a full compatibility analysis for your specific application.

Can I use a different manufacturer's part instead of L5959?

In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.

How do I verify L5959 alternatives?

Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.