LM2574BWM Micrel Semiconductor, LM2574BWM Datasheet
LM2574BWM
Related parts for LM2574BWM
LM2574BWM Summary of contents
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LM2574 General Description The LM2574 family is a series of easy to use fixed and adjustable switching voltage regulators. The LM2574 con- tains all of the active circuitry necessary to construct a stepdown (buck) switching regulator and requires a minimum ...
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LM2574 Pin Configuration M9999-122303 FB 1 SIG GND 2 ON/OFF 3 PWR GND 4 8-Pin DIP ( OUTPUT VIN December 2003 Micrel ...
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LM2574 Absolute Maximum Ratings Maximum Supply Voltage LM2574 ..................................................................... 45V OFF Pin Input Voltage ................................ –0.3V Output Voltage to Ground (Steady State) ..................... –1V Power Dissipation .................................... Internally Limited Storage Temperature Range (T ) ............ – +150 C ...
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LM2574 Electrical Characteristics Symbol Parameter Device Parameters, Adjustable Regulator I Feedback Bias Current B Device Parameters, Fixed and Adjustable Regulators f Oscillator Frequency o V Saturation Voltage SAT DC Max Duty Cycle (ON) I Current Limit CL I Output Leakage ...
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LM2574 Typical Characteristics (Circuit of Figure 1) Supply Current 20 Measured at Ground Pin 25˚ OUT = LOAD to 0. ...
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LM2574 Typical Performance Characteristics (continued) Normalized Feedback Voltage -10 -15 -20 -25 -75 -50 - 100 125 150 * Adjustable version only M9999-122303 Feedback Voltage vs Duty Cycle* 20 ...
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LM2574 Block Diagrams INTERNAL REGULATOR FEED- 4 BACK FIXED GAIN ERROR AMP 3.1k COMPARATOR + 1. 1.23V BAND-GAP 52 kHz RESET REFERENCE OSCILLATOR Note: Pin numbers are for the TO-220 package Fixed Regulator December ...
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LM2574 Package Information 0.018 (0.57) MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is ...