PLMR50410XDBVR Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
Texas Instruments PLMR50410XDBVR is a current-mode PWM step-down switching regulator operating from a 4 V to 36 V input supply with a nominal 12 V operating point. It delivers a regulated output voltage with minimal external components in a compact 6-pin LSSOP-6 (SOT-23) package. Available from stock worldwide at competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- PLMR50410XDBVR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide input voltage range of 4 V to 36 V covering 5 V, 12 V, and 24 V rails as well as automotive 12 V and 24 V bus systems
- Current-mode PWM control loop for fast transient response and inherent cycle-by-cycle overcurrent protection
- Ultra-compact 6-pin LSSOP-6 package (SOT-23 footprint) enabling smallest-possible step-down regulator board area
- Single-function design requiring minimal external passives—inductor, input/output capacitors—for fast time-to-market
- Introduced in 2020 with modern process technology for improved efficiency at 12 V nominal input
Applications
The PLMR50410XDBVR is designed for point-of-load step-down power conversion in industrial equipment, building-automation sensors, and automotive accessory boards that are powered from 12 V or 24 V supply rails. Its wide 4 V to 36 V input range allows a single design to cover both automotive 12 V nominal and 24 V truck systems without circuit changes. The SOT-23 footprint makes it ideal for space-constrained IoT modules, smart-home devices, and field instrumentation nodes where board area is at a premium.
Specifications
| Date Of Intro | 2020-05-06 |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G6 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 28V |
| Output Voltage-Min | 1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 700kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PLMR50410XDBVR:
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suggested
Frequently Asked Questions
What input voltage range does PLMR50410XDBVR accept, and is it compatible with automotive 12 V and 24 V systems?
The PLMR50410XDBVR accepts 4 V to 36 V input, which directly covers 12 V nominal automotive systems (with load-dump transients reaching up to 36 V) and 24 V truck and industrial bus rails. This wide range means a single board design can be qualified for both passenger-car and heavy-vehicle platforms without redesigning the power stage, reducing engineering time and certification cost.
How small is the PLMR50410XDBVR package, and what does that mean for PCB layout in a space-constrained design?
The device ships in a 6-pin LSSOP-6 package (equivalent to a SOT-23-6 footprint), measuring approximately 1.6 mm × 2.9 mm. This footprint is small enough to fit a complete step-down regulator—including the external inductor and two capacitors—on a 100 mm² PCB area, which is well suited for IoT sensor modules, wearable devices, and compact industrial nodes where every square millimeter of board space is contested.
What control method does the PLMR50410XDBVR use, and how does it protect against overload conditions?
The PLMR50410XDBVR uses current-mode PWM control, which measures the inductor current on every switching cycle and limits it to a peak threshold before the next cycle begins. This cycle-by-cycle current limiting acts as an instantaneous overload protection mechanism without requiring a separate current-sense amplifier, protecting both the external inductor and the internal power switch from damage during short-circuit or excessive load events.
What minimum external components are needed to build a working power supply with PLMR50410XDBVR?
A basic PLMR50410XDBVR step-down converter requires an external inductor (typically 4.7 µH to 22 µH depending on output current and switching frequency), an input bypass capacitor (typically 4.7 µF to 10 µF ceramic), and an output capacitor (typically 10 µF to 47 µF ceramic). The feedback resistor divider sets the output voltage. This 5-component BOM is significantly smaller than a 20+ component discrete topology, reducing assembly cost and board complexity.
For a 24 V industrial sensor node, how does PLMR50410XDBVR compare to a linear regulator for efficiency?
Stepping 24 V down to 3.3 V with a linear regulator dissipates 20.7 V × I_load as heat—at 100 mA that is 2.07 W of power loss requiring a heatsink in many enclosures. The PLMR50410XDBVR PWM switching converter achieves typical efficiencies of 80–90% at the same operating point, dissipating only 0.3–0.7 W, which eliminates the heatsink, extends battery or supply life, and keeps the node within thermal limits in sealed IP67 enclosures.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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