LM27403SQE/NOPB Part Information

Details for LM27403SQE/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Buy LM27403SQE/NOPB Directly from Texas Instruments (24066 in stock) at $0.9620

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 | Newark Electronics
  • 3-V to 20-V voltage-mode synchronous buck controller and temperature-compensated DCR current sensing | Texas Instruments

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