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NCP1450ASN27T1 Datasheet(PDF) 2 Page - ON Semiconductor |
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NCP1450ASN27T1 Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 22 page ![]() NCP1450A http://onsemi.com 2 1 3 GND CE 2 OUT NC 4 EXT 5 VIN VOUT Figure 1. Typical Step−up Converter Application Figure 2. Representative Block Diagram OUT 2 + − Voltage Reference Soft−Start PWM Controller 180 kHz Oscillator Driver Error Amplifier NC 3 GND 4 1 CE EXT 5 Phase Compensation PIN FUNCTION DESCRIPTION Pin # Symbol Pin Description 1 CE Chip Enable Pin (1) The chip is enabled if a voltage equal to or greater than 0.9 V is applied. (2) The chip is disabled if a voltage less than 0.3 V is applied. (3) The chip is enabled if this pin is left floating. 2 OUT Output voltage monitor pin and also the power supply pin for the device. 3 NC No internal connection to this pin. 4 GND Ground pin. 5 EXT External transistor drive pin. |
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