LM2576BU Micrel Inc, LM2576BU Datasheet
LM2576BU
Specifications of LM2576BU
Related parts for LM2576BU
LM2576BU Summary of contents
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LM2576 General Description The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, or 12V fixed output. Adjustable versions have an output voltage range ...
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... LM2576 Ordering Information Standard LM2576BT* LM2576-3.3BT LM2576-5.0BT LM2576-12BT LM2576BU* LM2576-3.3BU LM2576-5.0BU LM2576-12BU * Adjustable output regulators. **RoHS compliant with "hot-melting solder" exemption. † Contact factory for bent or staggered leads option. Pin Configurations 5-LEAD TO-220 (T) GND M9999-082605-B Part Number ‡ RoHS Compliant** Range † ...
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LM2576 Absolute Maximum Ratings Maximum Supply Voltage ON/OFF Pin Input Voltage Output Voltage to Ground (Steady State) Power Dissipation Storage Temperature Range Minimum ESD Rating C = 100pF 1.5k FB Pin Lead Temperature (soldering, 10 sec.) Maximum Junction ...
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LM2576 Electrical Characteristics (continued) Symbol Parameter Conditions DEVICE PARAMETERS, ADJUSTABLE REGULATOR I Feedback Bias Current V B DEVICE PARAMETERS, FIXED and ADJUSTABLE REGULATORS f Oscillator Frequency O V Saturation Voltage I SAT DC Max Duty Cycle (ON) (Note 5) I ...
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LM2576 Electrical Characteristics (continued) Symbol Parameter Conditions ON/OFF CONTROL, FIXED and ADJUSTABLE REGULATORS Test Circuit Figure 1 V ON/OFF Pin Logic Input Level /OFF Pin Logic ON /OFF Pin = 5V (OFF) IH ...
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LM2576 Typical Performance Characteristics (continued) Supply Current 20 Measured at Ground Pin 25˚ OUT = LOAD INPUT VOLTAGE ...
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LM2576 Typical Performance Characteristics Output Voltage Change Output Current August 2005 (Circuit of Figure 1 ) Load Transient Response +100mV 0 -100mV 100 µS/div. Switching Waveforms 50V ...
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LM2576 Test Circuits and Layout Guidelines +V IN LM2575 40V 100 µF + UNREGULATED GND 3 DC INPUT LM2575-5 40V 100 µF + UNREGULATED GND 3 DC INPUT C IN ...
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... DIM. = INCH MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...