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
Application• Consumer and Industrial Equipment Point of Regulation
• Active SCSI Termination for 2.85 V Version
• Switching Power Supply Post Regulation
• Hard Drive Controllers
• Battery ChargersSpecifications
|
Rating |
Symbol |
Value |
Unit |
| Input Voltage (Note 1) |
Vin |
20 |
V |
| Output Short Circuit Duration (Notes 2 and 3) |
− |
Infinite |
− |
Power Dissipation and Thermal Characteristics
Case 318H (SOT−223)
Power Dissipation (Note 2)
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad
Thermal Resistance, Junction−to−Case
Case 369A (DPAK)
Power Dissipation (Note 2)
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad
Thermal Resistance, Junction−to−Case |
PD
RJA
RJC
PD
RJA
RJC |
Internally Limited
160
15
Internally Limited
67
6.0 |
W
/W
/W
W
/W
/W |
| Maximum Die Junction Temperature Range |
TJ |
−55 to 150 |
|
| Storage Temperature Range |
Tstg |
−65 to 150 |
|
Operating Ambient Temperature Range
NCP1117
NCV1117 |
TA |
0 to +125
−40 to +125 |
|
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL−STD−883, Method 3015. Machine Model Method 200 V.
2. Internal thermal shutdown protection limits the die temperature to approximately 175°C. Proper heatsinking is required to prevent activation.
The maximum package power dissipation is:
PD =TJ(ma)-TA
RJA
3. The regulator output current must not exceed 1.0 A with Vin greater than 12 V.
DescriptionThe 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 NCP1117 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. NCP1117 are available in SOT−223 and DPAK packages.
NCV1117 Data Sheet
