参数资料
型号: ISL9104AIRUWEVAL1Z
厂商: Intersil
文件页数: 2/14页
文件大小: 0K
描述: EVAL BOARD 1 FOR ISL9104AIRUW
标准包装: 1
系列: *
ISL9104, ISL9104A
Pin Descriptions
PIN NUMBER
1
2
3
4
5
6
PIN NAME
VIN
EN
NC
FB
GND
SW
DESCRIPTION
Input supply voltage. Typically connect a 10μF ceramic capacitor to ground.
Regulator enable pin. Enable the device when driven to high. Shut down the chip and discharge
output capacitor when driven to low. Do not leave this pin floating.
No connect; leave floating.
Buck converter output feedback pin. For adjustable output version, its typical value is 0.8V and
connect it to the output through a resistor divider for desired output voltage; for fixed output version,
directly connect this pin to the converter output.
Ground connection.
Switching node connection. Connect to one terminal of inductor.
Typical Applications
ISL9104, ISL9104A ADJUSTABLE OUTPUT
INPUT: 2.7V TO 6V
VIN
SW
L
1.0μH
OUTPUT
UP TO 500mA
C1
4.7μF
C2
4.7μF
R1
100k
C3
47pF
R2
ENABLE
DISABLE
EN
GND
FB
100k
ISL9104, ISL9104A FIXED OUTPUT
L
OUTPUT
INPUT: 2.7V TO 6V
C1
4.7μ F
ENABLE
VIN
EN
SW
FB
1.0μH
C2
4.7μF
UP TO 500mA
DISABLE
GND
FIGURE 2. TYPICAL APPLICATIONS DIAGRAM
Note: For adjustable output version, the internal feedback resistor divider is disabled and the FB pin is directly connected to the error
amplifier.
2
FN6829.5
September 21, 2011
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