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L6460 数据表(PDF) 49 Page - STMicroelectronics |
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L6460 数据表(HTML) 49 Page - STMicroelectronics |
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49 / 139 page  L6460 Linear main regulator Doc ID 17713 Rev 1 49/139 Figure 10. Linear main regulator with external bipolar for high current Whichever configuration is used (regulator or controller), a ceramic capacitor must be connected on the output pin towards ground to guarantee the stability of the regulator; the value of this capacitance is in the range of 100 nF to 1 µF depending on the regulated voltage; ● VLINmain_OUT = 0.8 V --> 1 µF ● 0.8V< VLINmain_OUT < 2.5 V --> 0.68 µF ● 2.5V= VLINmain_OUT 5 V --> 0.33 µF ● VLINmain_OUT > 5 V --> 0.1 F When this regulator is disabled, the whole circuit is switched off and the current consumption is reduced to a very low level both from V3v3 and from VSupply. When in this condition, the output pin is pulled low by an internal switch. VLINmain_Ref + - Body Diode Cload Ra Rb VLINmain_FB Vsupply VLINmain_OUT |
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