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參數(shù)資料
| 型號： | LXE1684 |
| 英文描述： | Voltage Mode PWMs |
| 中文描述： | 電壓模式的PWM |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 131K |
| 代理商： | LXE1684 |
LXE1684
Evaluation Board Installation Guide
Copyright 2001
Rev. 0.1 9/11/01
Page 2
New Product Information
W
M
.
C
G
ENERAL
D
ESCRIPTION
The LXE1684 evaluation board is a switching Buck power supply which provides a 3.3V output from a
12V power supply utilizing the LX1684 Microsemi’s integrated controller. It can source 0A to 10A and
requires no minimum load for proper voltage regulation. The LXE1684 uses 12V as its main power
source and 5V to bias the LX1684 IC.
Q
UICK INSTALLATION GUIDE
It is recommended that you use laboratory power supply with adjustable current limit.
Ground and power wires used to connect power supply to LX1684 should be 4 inches or less each. Wires
should be at least 18 Gauge wire or larger, we recommend 16 or 14 Gauge stranded wires for all power
wires and ground wires. Additional through hole power and ground pads are provided in order to reduce
connector resistance. See silkscreen for more details.
1. Turn off power to 5V and 12V power supplies.
2. Connect 5V,12V, and GND from power supplies to 5V,12V and GND connectors of LXE1684.
3. Connect GND and 3.3V output to test load.
4.
Turn on power supply.
E
NVIRONMENTAL
Ambient Temperature: <70°C
I
NPUT VOLTAGE REQUIREMENTS
12V / 10A ± 10%
5V / 100mA ±5%
E
LECTRICAL
S
PECIFICATIONS
Parameter
Value
Output voltage
3.3V, 0A to 10A
±
5%
Output Current
10A Short Circuit protected.
Switching Frequency
175kHZ
75% at 500mA
92% at 1A
90% at 5A
Typical Efficiencies
87% at 10A
L
X
E
1
6
8
4
S
E
R
G
U
I
D
E
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