LM27403SQE/NOPB Part Information

Details for LM27403SQE/NOPB by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

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).

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Part Specifications

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
Switching Frequency 1.2MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
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
RoHS Compliant

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?

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What category does LM27403SQE/NOPB fall under?

The LM27403SQE/NOPB is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

Can I view similar or alternative parts?

You can view similar parts to LM27403SQE/NOPB when available in the Power Management range under the specifications section at the bottom of the details page.

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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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