LM5642MTC Texas Instruments In Stock
LM5642MTC is a dual synchronous buck controller for high-efficiency DC/DC conversion by Texas Instruments. Key specs: wide input voltage range 4.5V–42V, adjustable output voltage, supports up to 500kHz switching frequency. From $1.99, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.9924(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual synchronous buck controller enabling two independent output rails in a single IC
- Wide input voltage range of 4.5V to 42V suitable for industrial and automotive applications
- Adjustable switching frequency up to 500kHz for compact power supply designs
- Integrated gate drivers reduce external component count and simplify PCB layout
- Cycle-by-cycle current limiting and thermal shutdown for robust protection
Applications
The LM5642MTC is widely used in industrial power supplies, telecommunications equipment, and embedded computing systems requiring multiple regulated DC output rails. It is ideal for point-of-load converters in server and networking hardware where high efficiency and compact footprint are critical. The device also suits automotive infotainment and instrumentation systems operating from a wide-range vehicle bus voltage.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM5642MTC?
The LM5642MTC operates over a wide input voltage range of 4.5V to 42V, making it suitable for industrial, telecom, and automotive applications powered from unregulated or wide-range DC bus rails.
What switching frequency does the LM5642MTC support?
The LM5642MTC supports an adjustable switching frequency up to 500kHz. Higher frequencies allow the use of smaller inductors and capacitors, reducing overall power supply size and cost.
What protection features does the LM5642MTC include?
The LM5642MTC includes cycle-by-cycle current limiting, overvoltage protection, undervoltage lockout (UVLO), and thermal shutdown to protect the converter and downstream circuitry under fault conditions.
What package does the LM5642MTC come in?
The LM5642MTC is available in a thermally enhanced MTC (HTSSOP) surface-mount package, which provides good thermal dissipation for high-current applications while keeping board space compact.
What are typical applications for the LM5642MTC?
Typical applications include dual-output point-of-load DC/DC converters in industrial control systems, networking and telecom equipment, embedded computing boards, and automotive infotainment systems requiring multiple regulated voltage rails from a single controller.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.9260 | $4.93 |
| 3+ | $3.9000 | $11.70 |
| 7+ | $2.9250 | $20.47 |
| 93+ | $2.1544 | $200.36 |
| 121+ | $2.0734 | $250.88 |
| 151+ | $1.9924 | $300.85 |
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