參數(shù)資料
型號(hào): LOW-COST
英文描述: Low-Cost PWM Controller (110k)
中文描述: 低成本PWM控制器(11萬(wàn))
文件頁(yè)數(shù): 3/7頁(yè)
文件大?。?/td> 110K
代理商: LOW-COST
AN99-5
LOW COST PWM CONTROLLER
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
January 13, 2000
3
TYPICAL APPLICATIONS
SiQ1
R4
2.7
R2
1k
D1
R1
10
L1
6.8uH
C7
1C2
C4
0.01
R7
124
R6
124
C1
0.1
C5
+2.5V
+5V
GND
C8
0.1
R5
R3
1k
GND
VCC
1
Cs(-)
2
Cs(+)
3
PGND
4
DH
5
BST
6
FB
7
GND
8
SU1
C3
0.1
D2
C6
0.1
1. Small footprint - Low power
This circuit utilizes SO-8 MOSFET and SMC Schottky Diode. The area is 1 sq. in.
Top - Component View
Top - Copper
Bottom - Component View
Bottom - Copper
5V to 2.5V @ 4A with “flying capacitor” boost voltage.
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