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LM20242MH
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LM20242MH

  • Category:Low dropout linear regulator
  • Product Name:3A's PowerWise adjustable frequency synchronous buck regulator
  • Manufacturers:NSC
  • Production Batch Number:11+
  • Encapsulation:SMDDIP
  • Stock Status:There is stock
  • Stock Quantity:5000
  • Minimum order quantity: 1
  • Details:点击查找LM20242MH的pdf资料
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  • Product introduction
peculiarity
  • Available in AEC - Q100 temperature class 1
  • Input voltage range: 2.95V to 5.50V
  • Accurate current limiting minimizes inductor size
  • 97% peak efficiency
  • The adjustable output voltage drops to 0.80V
  • Adjustable switching frequency (500 kHz to 1.5 MHz)
  • 32mΩ integrated FET switch
  • Enter prebiased load startup
  • Output voltage tracking
  • Peak current mode control
  • Adjustable soft-start with external capacitors
  • Precision enable pin with hysteresis
  • Integrated overvoltage protection, undervoltage lockout, power good, and thermal shutdown
  • eTSSOP - 16 bare pad package

illustrate

The LM20143 is a full-featured, adjustable frequency synchronous buck regulator capable of delivering up to 3A of continuous output current. The current-mode control loop can be compensated and stabilized with almost any type of output capacitor. In most cases, compensation devices, which require only two external components, provide maximum flexibility and ease of use. Optimized operation from 2.95V to 5.5V input voltage range, making it suitable for a wide range of devices in low voltage systems.

The device features internal overvoltage protection (OVP) and overcurrent protection (OCP) circuitry to improve system reliability. An enable pin and integrated undervoltage lockout allow a precision device to be tightly controlled and sequencing turned on. Both a fixed internally and externally adjustable soft-start circuit start-up inrush current is limited. Possible with integrated power good circuit fault detection and power sequencing.

The frequency of such a device can be adjusted from 500 kHz to 1.5 MHz by connecting an external resistor to the RT pin to ground.

The LM20143 is working on a multirail power architecture design. The output voltage of the device can be configured to track a higher voltage rail, using SS/TRK pins. If the output prebias of the LM20143 is turned on, it does not sink current and pull the output low until the internal soft-start ramp exceeds the voltage feedback pin.

The LM20143 is available in a 16-pin eTSSOP package with exposed pads that can be soldered to the PCB, eliminating the need for bulky heat sinks.


apply

  • The design is simple, and the load is regulated from a high efficiency angle from a 5V or 3.3V bus
  • High performance DSP FPGAs, ASICs and microprocessors
  • Broadband, network and optical communications infrastructure

andLM20242MHRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
LM20242MH/NOPB   10+11+   Hong Kong spot, imported original
LM20242MH NSC 11+ SMDDIP 3A's PowerWise adjustable frequency synchronous buck regulator
LM20242MHX NSC 10+ SSOP THE VOLTAGE REGULATOR'S SIMPLE SWITCHER ® 2.5A HAS A 1UMHz synchronous step-down
LM20242MHE NSC 08+ TSSOP-20 36V, 2A Strip PowerWise synchronous buck regulator

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