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Part Details for KA78RM33RTF by onsemi
Results Overview of KA78RM33RTF by onsemi
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (3 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Industrial Automation
Energy and Power Systems
Renewable Energy
KA78RM33RTF Information
KA78RM33RTF by onsemi 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.
Price & Stock for KA78RM33RTF
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
KA78RM33RTF
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Avnet Silica | LDO Regulator Pos 33V 1A 3Pin2Tab DPAK TR (Alt: KA78RM33RTF) RoHS: Compliant Min Qty: 2000 Package Multiple: 2000 Lead time: 143 Weeks, 0 Days | Silica - 0 |
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Buy Now | |
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DISTI #
KA78RM33RTF
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EBV Elektronik | LDO Regulator Pos 33V 1A 3Pin2Tab DPAK TR (Alt: KA78RM33RTF) RoHS: Compliant Min Qty: 2000 Package Multiple: 2000 Lead time: 143 Weeks, 0 Days | EBV - 0 |
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Buy Now |
Part Details for KA78RM33RTF
KA78RM33RTF CAD Models
KA78RM33RTF Part Data Attributes
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KA78RM33RTF
onsemi
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Datasheet
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Compare Parts:
KA78RM33RTF
onsemi
0.5 A Fixed 3.3 V Low Dropout Voltage Regulator (LDO), 2000-REEL
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | ONSEMI | |
| Package Description | DPAK-3 | |
| Manufacturer Package Code | 369AK | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | onsemi | |
| Adjustability | FIXED | |
| Dropout Voltage1-Max | 0.6 V | |
| Input Voltage Absolute-Max | 20 V | |
| Input Voltage-Max | 16 V | |
| Input Voltage-Min | 4.3 V | |
| JESD-30 Code | R-PSSO-G2 | |
| JESD-609 Code | e3 | |
| Length | 6.6 mm | |
| Line Regulation-Max | 0.02% | |
| Load Regulation-Max | 0.02% | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 2 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | -25 °C | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -25 °C | |
| Output Current1-Max | 0.5 A | |
| Output Voltage1-Max | 3.38 V | |
| Output Voltage1-Min | 3.22 V | |
| Output Voltage1-Nom | 3.3 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | TO-252 | |
| Package Equivalence Code | SMSIP3H,.38,90TB | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Packing Method | TR | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | |
| Seated Height-Max | 2.4 mm | |
| Surface Mount | YES | |
| Technology | BIPOLAR | |
| Terminal Finish | TIN | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 2.3 mm | |
| Terminal Position | SINGLE | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Voltage Tolerance-Max | 2.4% | |
| Width | 6.1 mm |
Alternate Parts for KA78RM33RTF
This table gives cross-reference parts and alternative options found for KA78RM33RTF. 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 KA78RM33RTF, 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 |
|---|---|---|---|---|
| KA78RM33RTM | Fairchild Semiconductor Corporation | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.6V Dropout, BIPolar, PSSO2, DPAK-3 | KA78RM33RTF vs KA78RM33RTM |
| KA78RM33RTM | onsemi | Check for Price | 0.5 A Fixed 3.3 V Low Dropout Voltage Regulator (LDO), 2500-REEL | KA78RM33RTF vs KA78RM33RTM |
| KA78RM33R | Fairchild Semiconductor Corporation | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.6V Dropout, BIPolar, PSFM3, TO-220, 3 PIN | KA78RM33RTF vs KA78RM33R |
KA78RM33RTF Frequently Asked Questions (FAQ)
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A good PCB layout for optimal thermal performance would be to have a large copper area connected to the tab of the device, and to use thermal vias to dissipate heat to the other side of the board. The datasheet provides some guidance, but a more detailed application note or a reference design would be helpful.
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To ensure the device is properly biased, follow the recommended biasing circuit in the datasheet, and make sure the input voltage is within the recommended range. Also, ensure that the output capacitor is properly sized to handle the output current and voltage ripple.
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The critical components that affect the stability of the output voltage are the output capacitor, the input capacitor, and the feedback resistors. These components should be chosen carefully to ensure the desired output voltage and stability.
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To handle the inrush current during startup, a soft-start circuit can be used to limit the inrush current. This can be achieved by adding a soft-start capacitor and a current-limiting resistor in series with the input voltage.
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For high-power applications, thermal design considerations include ensuring good airflow around the device, using a heat sink with a high thermal conductivity, and ensuring that the PCB is designed to dissipate heat efficiently.