NCP1117
1.0 A Low-Dropout Positive
Fixed and Adjustable
Voltage Regulators
The NCP1117 series are low dropout positive voltage regulators that
are capable of providing an output current that is in excess of 1.0 A
with a maximum dropout voltage of 1.2 V at 800 mA over
temperature. This series contains eight fixed output voltages of 1.5 V,
1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V that have no
minimum load requirement to maintain regulation. Also included is an
adjustable output version that can be programmed from 1.25 V to
18.8 V with two external resistors. On chip trimming adjusts the
reference/output voltage to within
鹵1.0%
accuracy. Internal protection
features consist of output current limiting, safe operating area
compensation, and thermal shutdown. The NCP1117 series can
operate with up to 20 V input. Devices are available in SOT鈥?23 and
DPAK packages.
Features
http://onsemi.com
Tab
1
3
123
(Top View)
Pin: 1. Adjust/Ground
2. Output
3. Input
Heatsink tab is connected to pin 2.
Tab
DPAK
DT SUFFIX
CASE 369A
SOT鈥?23
ST SUFFIX
CASE 318H
鈥?/div>
Output Current in Excess of 1.0 A
鈥?/div>
1.2 V Maximum Dropout Voltage at 800 mA Over Temperature
鈥?/div>
Fixed Output Voltages of 1.5 V, 1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V,
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
5.0 V, and 12 V
Adjustable Output Voltage Option
No Minimum Load Requirement for Fixed Voltage Output Devices
Reference/Output Voltage Trimmed to
鹵1.0%
Current Limit, Safe Operating and Thermal Shutdown Protection
Operation to 20 V Input
Consumer and Industrial Equipment Point of Regulation
Active SCSI Termination for 2.85 V Version
Switching Power Supply Post Regulation
Hard Drive Controllers
Battery Chargers
1
3
2
1 3
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
Applications
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 12 of this data sheet.
TYPICAL APPLICATIONS
110
W
Input
Input
10
mF
3
+
3
+
NCP1117
XTXX
1
2 Output
+
10
10
mF
NCP1117
XTA
1
2 Output
+
10
3
10
mF
4.75 V
to
5.25 V
+
+
NCP1117
XT285
1
2
+
22
110
W
mF
110
W
18 to 27
Lines
mF
mF
110
W
Figure 1. Fixed
Output Regulator
Figure 2. Adjustable
Output Regulator
Figure 3. Active SCSI Bus Terminator
漏
Semiconductor Components Industries, LLC, 2001
1
November, 2001 鈥?Rev. 2
Publication Order Number:
NCP1117/D
NCP1117ST12T3 產(chǎn)品屬性
4,000
集成電路 (IC)
PMIC - 穩(wěn)壓器 - 線性
-
正，固定式
12V
最高 20V
1.07V @ 800mA
1
1A
0°C ~ 125°C
表面貼裝
TO-261-4，TO-261AA
SOT-223
帶卷 (TR)
NCP1117ST12T3OS
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