Overview
The NCP1117ST15T3 is a low dropout (LDO) positive linear voltage regulator produced by onsemi. This device is capable of providing an output current in excess of 1.0 A with a maximum dropout voltage of 1.2 V at 800 mA over temperature. It is part of the NCP1117 series, which includes fixed output voltages and an adjustable output version. The NCP1117ST15T3 specifically provides a fixed output voltage of 1.5 V and operates with up to 20 V input. It is available in the SOT-223 package and is Pb-free, making it suitable for a variety of applications including consumer, industrial, and automotive sectors.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage | 1.45 | 1.5 | 1.55 | V |
| Output Current | - | - | 1.0 | A |
| Dropout Voltage | - | - | 1.2 | V @ 800 mA |
| Input Voltage | 2.9 | - | 20 | V |
| Reference Voltage (Adjustable) | 1.238 | 1.25 | 1.262 | V |
| Operating Temperature | -40 | - | 125 | °C |
| Package | - | - | SOT-223 | - |
Key Features
- Output Current in Excess of 1.0 A
- 1.2 V Maximum Dropout Voltage at 800 mA Over Temperature
- Fixed Output Voltage of 1.5 V
- Adjustable Output Voltage Option (in the series, not this specific model)
- 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
- Pb-Free Devices
- AEC-Q100 Qualified and PPAP Capable for Automotive Applications
Applications
- Consumer and Industrial Equipment Point of Regulation
- Active SCSI Termination for 2.85 V Version (not applicable to this specific model)
- Switching Power Supply Post Regulation
- Hard Drive Controllers
- Battery Chargers
- Automotive Applications
Q & A
- What is the maximum output current of the NCP1117ST15T3?
The maximum output current is in excess of 1.0 A. - What is the fixed output voltage of the NCP1117ST15T3?
The fixed output voltage is 1.5 V. - What is the maximum dropout voltage at 800 mA?
The maximum dropout voltage is 1.2 V. - What is the input voltage range for the NCP1117ST15T3?
The input voltage range is from 2.9 V to 20 V. - Does the NCP1117ST15T3 have any internal protection features?
Yes, it includes current limit, safe operating area compensation, and thermal shutdown protection. - What package type is the NCP1117ST15T3 available in?
The NCP1117ST15T3 is available in the SOT-223 package. - Is the NCP1117ST15T3 Pb-free?
Yes, the device is Pb-free. - What are some common applications for the NCP1117ST15T3?
Common applications include consumer and industrial equipment point of regulation, switching power supply post regulation, hard drive controllers, battery chargers, and automotive applications. - Is the NCP1117ST15T3 AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified and PPAP capable for automotive applications. - What is the operating temperature range for the NCP1117ST15T3?
The operating temperature range is from -40°C to 125°C.
