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LA59700MC Datasheet(PDF) 4 Page - ON Semiconductor |
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LA59700MC Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 9 page LA59700MC No.A2169-4/9 Formula of Output Voltage Adjustment VOUT = VADJ (≈1.25V) × (R1+R2)/R1 Note: Set the resistance of R1 and R2 so that a large enough current flows through the two resistors, making the effect on the source current from the ADJ pin negligible. Startup Method This IC can be started in one of the following two ways: (1) Start the IC by turning on and off the EN pin after applying power to VCC1 and VCC2. (2) Short circuit the VCC1, VCC2, and EN pins. When using method (1), apply power to VCC1 and VCC2 simultaneously, or in the order of VCC1 to VCC2, then to the EN pin. To shutdown the IC, follow the start-up procedure in reverse order. Pin Function Pin No. Pin name Function Equivalent circuit 1 OUT Output. VCC1 VCC2 OUT GND 30k Ω 2 ADJ Adjustable input. VCC1 GND 1.3k Ω 2k Ω ADJ 3 NC No connection. 4 GND Ground. Connect to Pin 5 internally. 5 GND Ground. Connect to Pin 4 internally. 6 EN Chip Enable. (High Enable) VCC1 GND EN 20k Ω 55k Ω 105k Ω 7 VCC1 Analog power supply. 8 VCC2 Output power supply. *4 When you use this IC, Please short-circuit Exposed-Pad and GND-pin on the IC mounting side. |
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Descripción similar - LA59700MC |
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