鈥?/div>
Low dropout voltage
Load regulation: 0.05% typical
Trimmed current limit
On-chip thermal limiting
Standard SOT-223, TO-220, and TO-252 packages
Three-terminal adjustable or 鏗亁ed 1.8V, 2.5V, 2.85V,
3.3V, 5V
Description
The FAN1117A and FAN1117A-1.8, -2.5, -2.85, -3.3 and -5
are low dropout three-terminal regulators with 1A output
current capability. These devices have been optimized for low
voltage where transient response and minimum input voltage
are critical. The 2.85V version is designed speci鏗乧ally to be
used in Active Terminators for SCSI bus.
Current limit is trimmed to ensure speci鏗乪d output current
and controlled short-circuit current. On-chip thermal limiting
provides protection against any combination of overload and
ambient temperatures that would create excessive junction
temperatures.
Unlike PNP type regulators where up to 10% of the output
current is wasted as quiescent current, the quiescent current
of the FAN1117A 鏗俹ws into the load, increasing ef鏗乧iency.
The FAN1117A series regulators are available in the
industry-standard SOT-223, TO-220, and TO-252 (DPAK)
power packages.
Applications
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鈥?/div>
鈥?/div>
鈥?/div>
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Active SCSI terminators
High ef鏗乧iency linear regulators
Post regulators for switching supplies
Battery chargers
12V to 5V linear regulators
Motherboard clock supplies
Typical Applications
FAN1117A
V
IN
= 12V
10碌F
ADJ
R1
124鈩?/div>
+
V
IN
V
OUT
+
22碌F
9V at 1A
V
OUT
= V
REF
(1 + R2/R1) + I
ADJ
鈥?R2
R2
768鈩?/div>
FAN1117A-5
V
IN
= 12V
10碌F
GND
+
V
IN
V
OUT
+
22碌F
5V at 1A
REV. 1.1.0 11/7/03
FAN1117AS33X 產(chǎn)品屬性
2,500
集成電路 (IC)
PMIC - 穩(wěn)壓器 - 線性
-
正，固定式
3.3V
最高 18V
1.1V @ 1A
1
1A
1.1A
0°C ~ 125°C
表面貼裝
TO-261-4，TO-261AA
SOT-223-3
帶卷 (TR)
FAN1117AS33X相關(guān)型號PDF文件下載
-
型號
版本
描述
廠商
下載
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