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LM2595TADJG датащи(PDF) 3 Page - ON Semiconductor |
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LM2595TADJG датащи(HTML) 3 Page - ON Semiconductor |
3 / 25 page LM2595 http://onsemi.com 3 PIN FUNCTION DESCRIPTION Pin Symbol Description (Refer to Figure 1) 1 Output This is the emitter of the internal switch. The saturation voltage Vsat of this output switch is typically 1.0 V. It should be kept in mind that the PCB area connected to this pin should be kept to a minimum in order to minimize coupling to sensitive circuitry. 2 Vin This pin is the positive input supply for the LM2595 step−down switching regulator. In order to minimize voltage transi- ents and to supply the switching currents needed by the regulator, a suitable input bypass capacitor must be present (Cin in Figure 1). 3 GND Circuit ground pin. See the information about the printed circuit board layout. 4 Feedback This pin is the direct input of the error amplifier and the resistor network R2, R1 is connected externally to allow pro- gramming of the output voltage. 5 ON/OFF It allows the switching regulator circuit to be shut down using logic level signals, thus dropping the total input supply current to approximately 50 mA. The threshold voltage is typically 1.6 V. Applying a voltage above this value (up to +Vin) shuts the regulator off. If the voltage applied to this pin is lower than 1.6 V or if this pin is left open, the regulator will be in the “on” condition. OPERATING RATINGS (Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.) Rating Symbol Value Unit Operating Junction Temperature Range TJ −40 to +125 °C Supply Voltage Vin 4.5 to 40 V |
Аналогичный номер детали - LM2595TADJG |
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Аналогичное описание - LM2595TADJG |
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