LM5140QRWGTQ1 Semiconductors - ICs by Texas Instruments

DC/DC CTRL SYNC BUCK 2.2MHZ

Status: Unknown
Series: -
RoHS: Unknown
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The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN stepdown converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation. The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180º out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.

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Prices starting from US$7.02

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Texas Instruments
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Newark Electronics
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Specifications

Supply Voltage Min 3.8V
Supply Voltage Max 65V
No. of Outputs 2 Output, 2Outputs
Duty Cycle (%) 50%
Controller IC Case Style VQFNP
No. of Pins 40Pins
Switching Frequency 2.2MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 150°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Input Voltage Max 65V

Alternative Descriptions

Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller | Texas Instruments
Dc/Dc Ctrl, Sync Buck, 2.2Mhz | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM5140QRWGTQ1?

Additional datasheets, footprints and schematics for LM5140QRWGTQ1 are listed on our Part Details page. You can also find images and similar parts to LM5140QRWGTQ1 on this page.

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What category does LM5140QRWGTQ1 fall under?

The LM5140QRWGTQ1 is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

Can I view similar or alternative parts?

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Is the LM5140QRWGTQ1 RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Texas Instruments, Newark Electronics, element14 and Farnell have stock available or on a lead time for LM5140QRWGTQ1.

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