UC1843AMDREPAlternatives & Equivalent Parts
About UC1843AMDREP
UC1843AMDREP is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | UC1843AMDREPSource | UC3843BVD1R2G | UC3843BD1R2G | UC1843AMDREPG4 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | ON Semiconductor | ON Semiconductor | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Other |
| Pin Count | 8 | 8 | 8 | 8 |
| Temperature Range | -55.0°C ~ 125.0°C | -40.0°C ~ 105.0°C | ~ 70.0°C | -55.0°C ~ 125.0°C |
| Price | $4.5630 | $0.2930 | $0.2038 | $3.6142 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | OBSOLETE |
| Electrical Parameters | ||||
| Pbfree Code | Yes | Yes | Yes | — |
| YTEOL | 15 | 7.6 | 7.6 | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE | CURRENT-MODE | CURRENT-MODE | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25 V | 25 V | 25 V | 25 V |
| Input Voltage-Min | 12 V | 12 V | 12 V | 12 V |
| Input Voltage-Nom | 15 V | 15 V | 15 V | 15 V |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 |
| JESD-609 Code | e4 | e3 | e3 | e4 |
| Number of Functions | 1 | 1 | 1 | 1 |
| Output Current-Max | 1 A | 1 A | 1 A | 1 A |
| Output Voltage-Max | 5.05 V | — | — | 5.05 V |
| Output Voltage-Min | 4.95 V | — | — | 4.95 V |
| Output Voltage-Nom | 5 V | — | — | 5 V |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 | SOP8,.25 | SOP8,.25 | SOP8,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Current-Max (Isup) | 17 mA | — | — | 17 mA |
| Supply Voltage-Max (Vsup) | 25 V | — | — | — |
| Supply Voltage-Min (Vsup) | 12 V | — | — | — |
| Surface Mount | YES | YES | YES | YES |
| Switcher Configuration | BUCK-BOOST | BUCK-BOOST | BUCK-BOOST | SINGLE |
| Switching Frequency-Max | 500 kHz | 500 kHz | 500 kHz | 500 kHz |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR |
| Temperature Grade | MILITARY | INDUSTRIAL | COMMERCIAL | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 | 30 |
| Manufacturer Package Code | — | 751-07 | 751-07 | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 3 alternatives for UC1843AMDREP — response within 24 hours.
Quick Links
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Why Look for Alternatives?
Finding alternatives for UC1843AMDREP 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 UC1843AMDREP 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 UC1843AMDREP?
Known equivalents for UC1843AMDREP include UC3843BVD1R2G, UC3843BD1R2G, UC1843AMDREPG4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of UC1843AMDREP?
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 UC1843AMDREP 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.