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參數(shù)資料
| 型號： | CD54-470L |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 158K |
| 代理商： | CD54-470L |
NCP1402
http://onsemi.com
2
1
3
GND
4
CE
2
OUT
NC
LX
5
NCP1402
Figure 1. Typical StepUp Converter Application
V
OUT
V
in
POWER
SWITCH
OUT
2
+
VOLTAGE
REFERENCE
SOFTSTART
PFM
CONTROLLER
PFM
OSCILLATOR
DRIVER
V
LX
LIMITER
PFM
COMPARATOR
NC
3
GND
4
LX
5
1 CE
Figure 2. Representative Block Diagram
PIN FUNCTION DESCRIPTIONS
Pin #
Symbol
Pin Description
1
CE
Chip Enable pin
Chi Enable in
(1) The chip is enabled if a voltage which is equal to or greater than 0.9 V is applied
( ) Th
hi i di
bl d if
hi h i l
(2) The chip is disabled if a voltage which is less than 0.3 V is appli d
(3) The chip will be enabled if it is left floating
( )
2
OUT
Output voltage monitor pin, also the power supply pin of the device
3
NC
No internal connection to this pin
4
GND
Ground pin
5
LX
External inductor connection pin to power switch drain
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