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NCP1450ASN27T1 Datasheet(PDF) 2 Page - ON Semiconductor

Part # NCP1450ASN27T1
Description  PWM Step?뭫p DC?묭C Controller
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1450ASN27T1 Datasheet(HTML) 2 Page - ON Semiconductor

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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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