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 ±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−223 and DPAK packages.
Features
• Output Current in Excess of 1.0 A
• 1.2 V Maximum Dropout Voltage at 800 mA Over Temperature
• 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
• Adjustable Output Voltage Option
• No Minimum Load Requirement for Fixed Voltage Output Devices
• Reference/Output Voltage Trimmed to ±1.0%
• Current Limit, Safe Operating and Thermal Shutdown Protection
• Operation to 20 V Input
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available
Applications
• 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
