PM5143QRWGTQ1 Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
PM5143QRWGTQ1 is a dual 2-phase synchronous buck DC-DC controller from Texas Instruments with a 3.5 V to 65 V input range and adjustable output from 0.6 V to 55 V. It uses current-mode PWM control in a 40-pin QFN package for high-efficiency power conversion.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 41
- Lifecycle
- OBSOLETE
- Datasheet
- PM5143QRWGTQ1 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
What are the key features of PM5143QRWGTQ1?
- Wide 3.5 V to 65 V input voltage range supports diverse industrial and automotive bus standards including 12 V, 24 V, and 48 V systems
- Dual 2-phase synchronous buck topology reduces output ripple and allows phase interleaving for higher combined output current
- Current-mode PWM control with adjustable output voltage down to 0.6 V enables precise rail generation for FPGAs, DSPs, and microcontrollers
What is PM5143QRWGTQ1 used for?
The PM5143QRWGTQ1 is designed for industrial and telecom power supply applications requiring high input voltage tolerance up to 65 V and tightly regulated dual output rails. Its 2-phase architecture makes it suitable for powering multi-rail FPGAs, DSP processors, and embedded computing modules where low output ripple and high efficiency are critical. The wide adjustable output range from 0.6 V to 55 V also supports battery management systems and motor drive auxiliary rails.
What are the specifications of PM5143QRWGTQ1?
| YTEOL | 0 |
| Additional Feature | ALSO AVAILABLE VOUT= 5V; ADJ O/P VOLTAGE= 0.6V TO 55V |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 65V |
| Input Voltage-Min | 3.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N40 |
| Number of Functions | 1 |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2500kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PM5143QRWGTQ1 datasheet?
PM5143QRWGTQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PM5143QRWGTQ1?
Compatible alternatives and drop-in replacements for PM5143QRWGTQ1:
Switching Controller, Current-mode, 40A, 2200kHz Switching Freq-Max, BICMOS, PQCC40
Frequently Asked Questions
What input voltage range does PM5143QRWGTQ1 support, and which bus architectures does that enable?
PM5143QRWGTQ1 accepts an input voltage range of 3.5 V to 65 V, covering 12 V, 24 V, and 48 V industrial bus standards. This wide range makes the controller suitable for telecom rectifiers, industrial motor drives, and 48 V automotive mild-hybrid architectures without requiring a pre-regulator stage.
How does the 2-phase synchronous buck topology of PM5143QRWGTQ1 benefit output ripple and efficiency?
The 2-phase synchronous buck topology of PM5143QRWGTQ1 interleaves two switching phases to cancel fundamental ripple components, reducing output capacitor requirements by up to 50% compared to a single-phase design. Each phase contributes to the total output current, enabling higher combined load currents while distributing thermal stress across 2 external FETs.
What output voltage range can PM5143QRWGTQ1 regulate to, and which processor rails does it support?
PM5143QRWGTQ1 regulates output voltage from 0.6 V to 55 V using external resistor-divider feedback. This range covers common digital core rails at 0.75 V and 1.0 V for FPGAs and DSPs, I/O rails at 1.8 V and 3.3 V, and higher system rails at 5 V or 12 V, all from a single 40-pin QFN controller IC.
Which package does PM5143QRWGTQ1 use and how does it fit on a compact power module PCB?
PM5143QRWGTQ1 is housed in a 40-pin QFN (S-PQCC-N40) package, which offers a small PCB footprint compared to SOIC alternatives. The exposed thermal pad on the bottom improves heat dissipation to the PCB ground plane, reducing the need for external heatsinks in industrial power modules operating across a -40°C to 125°C temperature range.
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Why Buy from FindMyChip
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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