參數(shù)資料
型號: FSD200BM
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: Green Mode Fairchild Power Switch (FPS)
中文描述: 0.365 A SWITCHING REGULATOR, 142 kHz SWITCHING FREQ-MAX, PDSO7
封裝: LSOP-7
文件頁數(shù): 15/18頁
文件大小: 853K
代理商: FSD200BM
FSD210B, FSD200B
15
Typical Application Circuit - 2
Features
Non-Isolation Buck converter
Low component count
Enhanced system reliability through various protection functions
Key Design Notes
The output voltage(12V) is regulated with resistors R1, R2 and R3, zener diode D3, the transistor Q1 and the capacitor C2.
While the FSD210B is off, diodes D1 and D2 are on. At this time the output voltage 12V is sensed by the feedback
components listed above.
R 680K is used to prevent the OLP(over load protection) at startup.
R 8.2K is a dummy resistor to regulate output voltage in light load.
1. Schematic
Application
Output power
Input voltage
DC 120 ~ 375V
Output voltage (Max current)
Non-Isolation Buck
1.2W
(for Universal Input)
12V (100mA)
R
680K
R2
110
0
C1
4.7uF/400V
R
8.2K
R3
750
D3(ZD)
1N759A
GND
Q1
KSP2222A
C4
1000uF 16V
C2
47nF/50V
GND
R1
110
U1
FSD21x
8
5
7
1
4
2
3
Vstr
Vcc
D
G
Vfb
G
G
C5
47uF 50V
D1
UF4004
VINDC
D2
UF4004
VOUT(12V/100mA)
L1
1mH
相關(guān)PDF資料
PDF描述
FSD210B Green Mode Fairchild Power Switch (FPS)
FSD210BM Green Mode Fairchild Power Switch (FPS)
FSD270 SILICON DUAL VARIABLE CAPACITANCE DIODE
FSD270TA SILICON DUAL VARIABLE CAPACITANCE DIODE
FSD270(2)
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