LM43603PWPRAlternatives & Equivalent Parts
About LM43603PWPR
LM43603PWPR 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 | LM43603PWPRSource | LM43603AQPWPRQ1 | TPS55340PWPR | STM32U575ZIT6 | TPS61040DBVR | LM43603PWPT |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | Quad Flat Packages | SOT23 (5-Pin) | Small Outline Packages |
| Pin Count | 17 | 17 | 15 | 144 | 5 | 17 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 150.0°C | — | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C |
| Price | $0.7584 | $2.2200 | $0.5357 | $5.7023 | $0.4529 | $0.7887 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| Pbfree Code | Yes | Yes | Yes | — | Yes | Yes |
| YTEOL | 15 | 15 | 15 | 9 | 15 | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR | SWITCHING REGULATOR | SWITCHING REGULATOR | — | SWITCHING REGULATOR | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE | CURRENT-MODE | CURRENT-MODE | — | CURRENT-MODE | CURRENT-MODE |
| Control Technique | PWM/PFM | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | — | PULSE FREQUENCY MODULATION | PWM/PFM |
| Input Voltage-Max | 36 V | 36 V | 32 V | — | 6 V | 36 V |
| Input Voltage-Min | 3.5 V | 3.5 V | 2.9 V | — | 1.8 V | 3.5 V |
| Input Voltage-Nom | 12 V | 12 V | 5 V | — | 2.4 V | 12 V |
| JESD-30 Code | R-PDSO-N16 | R-PDSO-G16 | R-PDSO-G14 | — | R-PDSO-G5 | R-PDSO-N16 |
| JESD-609 Code | e4 | e4 | e4 | — | e3 | e4 |
| Number of Functions | 1 | 1 | 1 | — | 1 | 1 |
| Number of Outputs | 1 | 1 | 1 | — | 1 | 1 |
| Output Current-Max | 3 A | 3 A | 5 A | — | 0.45 A | 3 A |
| Output Voltage-Max | 28 V | 28 V | 38 V | — | 28 V | 28 V |
| Output Voltage-Min | 1 V | 1 V | 3 V | — | 1.8 V | 1 V |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 | — | TSSOP14,.25 | — | TSOP5/6,.11,37 | TSSOP16,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH | — | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | — | 260 | 260 |
| Surface Mount | YES | YES | YES | — | YES | YES |
| Switcher Configuration | BUCK | BUCK | BUCK-BOOST | — | BOOST | BUCK |
| Switching Frequency-Max | 2200 kHz | 2200 kHz | 1200 kHz | — | 1000 kHz | 2200 kHz |
| Temperature Grade | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE | — | INDUSTRIAL | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | — | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING | GULL WING | GULL WING | — | GULL WING | GULL WING |
| Terminal Pitch | 0.65 mm | 0.65 mm | 0.65 mm | — | 0.95 mm | 0.65 mm |
| Terminal Position | DUAL | DUAL | DUAL | — | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 | — | 30 | 30 |
| ## LM43603PWPR Alternates Showing results | Image | — | — | — | — | — |
| Date Of Intro | — | 2017-03-03 | — | — | — | — |
| Additional Feature | — | OPERATES WITH ADJ OUTPUT VOLTAGE= 1V TO 28V | — | — | OPERATES IN ADJUSTABLE MODE FROM 1.8 TO 28 V | — |
| Output Voltage-Nom | — | 3.3 V | — | — | — | — |
| Screening Level | — | AEC-Q100 | — | — | — | — |
| Technology | — | BICMOS | — | — | — | — |
| Factory Lead Time | — | — | — | 13 Weeks | — | — |
| uPs/uCs/Peripheral ICs Type | — | — | — | MICROCONTROLLER, RISC | — | — |
| Qualification Status | — | — | — | — | Not Qualified | — |
| ## TPS61040DBVR Alternates Showing results | — | — | — | — | Image | — |
| ## LM43603PWPT Alternates Showing results | — | — | — | — | — | Image |
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 5 alternatives for LM43603PWPR — response within 24 hours.
Quick Links
Switching Regulator, Current-mode, 3A, 2200kHz Switching Freq-Max, BICMOS, PDSO16
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Switching Regulator, Current-mode, 3A, 2200kHz Switching Freq-Max, PDSO16
Why Look for Alternatives?
Finding alternatives for LM43603PWPR 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 LM43603PWPR 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 LM43603PWPR?
Known equivalents for LM43603PWPR include LM43603AQPWPRQ1, TPS55340PWPR, STM32U575ZIT6. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM43603PWPR?
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 LM43603PWPR 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.