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参数资料
| 型号： | LM2704MFX-ADJ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.62 A SWITCHING REGULATOR, PDSO5 |
| 封装： | SOT-23, 5 PIN |
| 文件页数： | 4/11页 |
| 文件大小： | 312K |
| 代理商： | LM2704MFX-ADJ/NOPB |
Connection Diagram
Top View
20031502
SOT23-5
T
Jmax = 125C,
θ
JA = 220C/W (Note 2)
Ordering Information
Order Number
Package Type
NSC Package Drawing
Top Mark
Supplied As
LM2704MF-ADJ
SOT23-5
MA05B
S28B
1000 Units, Tape and Reel
LM2704MFX-ADJ
SOT23-5
MA05B
S28B
3000 Units, Tape and Reel
Pin Description/Functions
Pin
Name
Function
1
SW
Power Switch input.
2
GND
Ground.
3
FB
Output voltage feedback input.
4
SHDN
Shutdown control input, active low.
5V
IN
Analog and Power input.
SW(Pin 1): Switch Pin. This is the drain of the internal
NMOS power switch. Minimize the metal trace area con-
nected to this pin to minimize EMI.
GND(Pin 2): Ground Pin. Tie directly to ground plane.
FB(Pin 3): Feedback Pin. Set the output voltage by selecting
values for R1 and R2 using:
Connect the ground of the feedback network to an AGND
plane which should be tied directly to the GND pin.
SHDN(Pin 4): Shutdown Pin. The shutdown pin is an active
low control. Tie this pin above 1.1V to enable the device. Tie
this pin below 0.3V to turn off the device.
V
IN(Pin 5): Input Supply Pin. Bypass this pin with a capacitor
as close to the device as possible.
LM2704
www.national.com
2
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