LM27403SQE/NOPB Part Information
The LM27403 is a feature-rich, easy-to-use, synchronous buck controller offering exceptional levels of integration and performance for superior efficiency in high power density, point-of-load (POL) DC-DC regulator solutions. The resistorprogrammable switching frequency from 200 kHz to 1.2 MHz and integrated, high-current MOSFET gate drivers with adaptive deadtime offer flexibility to optimize solution size and maximize conversion efficiency. High precision and low output voltage are easily obtained with a 0.6-V, 1% accurate voltage reference together with a 30-ns high-side MOSFET minimum controllable on-time. Using lossless inductor dc resistance (DCR) current sensing and an inexpensive 2N3904 BJT to sense temperature remotely at the inductor, the LM27403 supports accurate and thermally compensated overcurrent protection (OCP).
|Supply Voltage Min||3V|
|Supply Voltage Max||20V|
|No. of Outputs||1 Output, 1Outputs|
|Duty Cycle (%)||93%|
|Controller IC Case Style||WQFN|
|No. of Pins||24Pins|
|Topology||Synchronous Buck (Step Down)|
|Operating Temperature Min||-40°C|
|Operating Temperature Max||125°C|
|Automotive Qualification Standard||-|
|RoHS Phthalates Compliant||Yes|
|MSL||MSL 1 - Unlimited|
|SVHC||No SVHC (27-Jun-2018)|
|Input Voltage Max||20V|
|Input Voltage Min||3V|
|Primary Input Voltage||20V|
Alternative Part Descriptions
- IC, BUCK CONTROLLER, 1.2MHZ, WQFN-24; Supply Voltage Min:3V; Supply Voltage Max:20V; No. of Outputs:1 Output; Duty Cycle (%):93%; Controller IC Case Style:WQFN; No. of Pins:24Pins; Switching Frequency:1.2MHz; Topology:Synchronous RoHS Compliant: Yes | Newark Electronics
- 3-V to 20-V voltage-mode synchronous buck controller and temperature-compensated DCR current sensing | Texas Instruments
Frequently Asked Questions
Where can I find additional details, specifications and documents for a LM27403SQE/NOPB?
Additional datasheets, footprints and schematics for LM27403SQE/NOPB are listed in our Part Details tab. You can also find the LM27403SQE/NOPB image and similar parts on this details page.
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What category does LM27403SQE/NOPB fall under?
The LM27403SQE/NOPB is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.
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Is the LM27403SQE/NOPB RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Farnell.
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Authorised distributors including Newark Electronics and Texas Instruments have stock available or on a lead time for LM27403SQE/NOPB.
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