Overview
The REG1117-5G4 is a low dropout positive voltage regulator from Burr-Brown, now part of Texas Instruments. This regulator is part of the REG1117 family, which includes a variety of fixed and adjustable voltage versions. The REG1117-5G4 specifically provides a fixed output voltage of 5V and is capable of delivering up to 800mA of output current. It is packaged in a SOT-223-4 surface-mount package, making it suitable for a wide range of applications requiring efficient and stable voltage regulation.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Output Voltage | Fixed output voltage | 5V |
| Output Current | Maximum output current | 800mA |
| Dropout Voltage | Maximum dropout voltage at IO = 800mA | 1.2V |
| Output Tolerance | Maximum output voltage tolerance | ±1% |
| Internal Current Limit | Maximum current limit | 800mA to 1200mA |
| Thermal Overload Protection | Protection against thermal overload | Yes |
| Package | Surface-mount package type | SOT-223-4 |
| Ripple Rejection | Ripple rejection at f = 120Hz | 62 dB |
| Temperature Drift | Output voltage drift over temperature range (0°C to +125°C) | 0.5% |
| Thermal Resistance | Junction-to-case thermal resistance | 15°C/W (SOT-223) |
Key Features
- Low dropout voltage of 1.2V at 800mA output current
- High accuracy output voltage with ±1% tolerance
- Internal current limit and thermal overload protection for reliability
- High ripple rejection of 62 dB at 120Hz
- Low temperature drift of 0.5% over the range 0°C to +125°C
- Compact SOT-223-4 surface-mount package
Applications
- SCSI-2 active termination
- Hand-held data collection devices
- High efficiency linear regulators
- Battery-powered instrumentation
- Battery management circuits for notebook and palmtop PCs
- Core voltage supply for FPGA, PLD, DSP, and CPU
Q & A
- What is the output voltage of the REG1117-5G4?
The output voltage of the REG1117-5G4 is 5V.
- What is the maximum output current of the REG1117-5G4?
The maximum output current of the REG1117-5G4 is 800mA.
- What is the dropout voltage of the REG1117-5G4 at maximum output current?
The dropout voltage of the REG1117-5G4 at 800mA output current is 1.2V.
- Does the REG1117-5G4 have internal current limit and thermal overload protection?
Yes, the REG1117-5G4 has internal current limit and thermal overload protection.
- What is the package type of the REG1117-5G4?
The package type of the REG1117-5G4 is SOT-223-4.
- What is the ripple rejection of the REG1117-5G4?
The ripple rejection of the REG1117-5G4 is 62 dB at 120Hz.
- What is the temperature drift of the REG1117-5G4 over its operating temperature range?
The temperature drift of the REG1117-5G4 is 0.5% over the range 0°C to +125°C.
- What are some common applications of the REG1117-5G4?
Common applications include SCSI-2 active termination, hand-held data collection devices, battery-powered instrumentation, and core voltage supply for FPGA, PLD, DSP, and CPU.
- Is the REG1117-5G4 RoHS compliant?
Yes, the REG1117-5G4 is RoHS compliant.
- Where can I find the datasheet for the REG1117-5G4?
The datasheet for the REG1117-5G4 can be found on the official Texas Instruments website or through various electronic component distributors.
