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- LM5642MTC - TI
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Manufacturer:TI
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ManyChip's Part#:MC50702733
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Category:DC to DC Converter
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Package:TSSOP-28
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Datasheet:Datasheet 3D Model
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Description:TEXAS INSTRUMENTS LM5642MTC DC-DC Controller, Current Mode, 4.5V to 36V, 2Outputs, Synchronous Buck, 250kHz, TSSOP-28
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Stock Locations:
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Availability:544 pcs In Stock
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MOQ:1 pcs
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Unit Price:$ 1.79
Updated at 17/06/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- The LM5642MTC is a current-mode Buck Controller with oscillator synchronization. It consists of two current-mode synchronous buck regulator controllers operating 180° out of phase with each other at a normal switching frequency of 200kHz. Out of phase operation reduces the input RMS ripple current, thereby significantly reducing the required input capacitance. The switching frequency can be synchronized to an external clock between 150 and 250kHz. The two switching regulator outputs can also be paralleled to operate as a dual-phase, single output regulator. The output of each channel can be independently adjusted from 1.3V to 90% of Vin. An internal 5V rail is also available externally for driving bootstrap circuitry. Current-mode feedback control assures excellent line and load regulation and wide loop bandwidth for excellent response to fast load transients.
- Two synchronous buck regulators
- 180° Out-of-phase operation
- 50µA Shutdown current
- 0.04% Typical line and load regulation accuracy
- Current mode control with or without a sense resistor
- Independent enable/soft-start pins allow simple sequential startup configuration
- Configurable for single output parallel operation
- Adjustable cycle-by-cycle current limit
- Input under-voltage lockout
- Output over-voltage latch protection
- Output under-voltage protection with delay
- Thermal shutdown
- Self discharge of output capacitors when the regulator is off
- Green product and no Sb/Br
- Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
LM5642MTC Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 28 Pin |
| Case/Package | TSSOP-28 |
| Frequency | 200 kHz |
| Supply Voltage (DC) | 4.50V (min) |
| Number of Outputs | 2 Output |
| Output Voltage | 1.3V ~ 32.4V |
| Output Current | 20 A |
| Number of Channels | 2 Channel |
| Number of Positions | 28 Position |
| Power Dissipation | 1100 mW |
| Quiescent Current | 1.10 mA |
| Number of Regulated Outputs | 2 Output |
| Switching Frequency | 200 kHz |
| Topology | Buck |
| Duty Cycle | 98.9 % |
| Input Voltage (Max) | 36 V |
| Input Voltage (Min) | 4.5 V |
| Maximum Duty Cycle | 0.989 |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 1100 mW |
| Supply Voltage | 4.5V ~ 36V |
| Supply Voltage (Max) | 36 V |
| Supply Voltage (Min) | 4.5 V |
| Input Voltage | 4.5V ~ 36V |
| Show | |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| RoHS | Non-Compliant |
| Lead-Free Status | Contains Lead |
| REACH SVHC Compliance | No SVHC |
| REACH SVHC Compliance Edition | 2015/06/15 |
Order guide
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charges, duties and taxes.
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- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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