LM2574M-3.3/NOPB Semiconductors - ICs by Texas Instruments

IC SIMPLE SWITCHER 52KHZ SOIC-14

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Status:	Unknown
Series:	-
RoHS:	Unknown

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The LM2574xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixedfrequency oscillator. The LM2574xx series offers a high-efficiency replacement for popular three-terminal linear regulators. Because of its high efficiency, the copper traces on the printed-circuit board (PCB) are normally the only heat sinking needed. A standard series of inductors optimized for use with the LM2574 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies. Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50-μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

	Distributor	Stock
	Farnell	No stock	Buy Now
	Texas Instruments	11,000 units	Buy Now

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Specifications

Topology	Buck (Step Down)
Input Voltage Min	4V
Input Voltage Max	40V
DC / DC Converter IC Case	SOIC
No. of Pins	14Pins
Output Current	500mA
Output Voltage Nom.	3.3V
Switching Frequency	52kHz
Operating Temperature Max	125°C
Product Range	-
Automotive Qualification Standard	-
RoHS Phthalates Compliant	Yes
MSL	MSL 3 - 168 hours
SVHC	No SVHC (27-Jun-2018)
Frequency	52kHz
No. of Outputs	1Outputs
Operating Temperature Min	-40°C
Output Voltage	3.3V
Primary Input Voltage	12V

Alternative Descriptions

8V to 40V, 500mA SIMPLE SWITCHER® buck converter with 4 external components | Texas Instruments

Ic, Simple Switcher, 52Khz, Soic-14 | Newark Electronics

Conv DC-DC Single Step Down 4V to 40V 14-Pin SOIC W Rail | Avnet America

Frequently Asked Questions

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The LM2574M-3.3/NOPB is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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This part has not been flagged as RoHS Compliant.

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	Distributor	Stock
	Farnell	No stock	Buy Now
	Texas Instruments	11,000 units	Buy Now

View Full Pricing & Stock Comparison