Overview
The NCP134AMX105TCG is a 500 mA Very Low Dropout (VLDO) CMOS voltage regulator produced by onsemi. This device is designed for space-constrained and noise-sensitive applications, particularly in battery-operated portable equipment. It features an NMOS pass transistor and a separate bias supply voltage (VBIAS) to optimize performance. The regulator provides a stable and accurate output voltage with low noise, making it suitable for a variety of applications including smartphones, tablets, cameras, and other portable devices.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 0.8 | - | 5.5 | V |
| Bias Voltage Range | 2.4 | - | 5.5 | V |
| Output Voltage (Fixed) | 1.05 | - | 1.05 | V |
| Output Current | - | - | 500 | mA |
| Output Voltage Accuracy | -1.5% | - | +1.5% | % |
| Dropout Voltage (IOUT = 500 mA) | 140 | - | 250 | mV |
| Bias Input Current | - | 80 | - | μA |
| Enable Input Current in Disable Mode | - | 0.5 | - | μA |
| Package Type | - | - | XDFN4 (1.2 mm x 1.2 mm x 0.4 mm) | - |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Very Low Dropout: Maximum 150 mV at 500 mA output current.
- Low Bias Input Current: Typical 80 μA, and 0.5 μA in disable mode.
- Logic Level Enable Input for ON/OFF control.
- Output Active Discharge Option Available.
- Stable with a 2.2 μF Ceramic Capacitor.
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant.
- Ultra-low noise suitable for noise-sensitive applications.
- Internal Current Limitation and Thermal Shutdown Protection.
- Smooth monotonic start-up to limit inrush current.
Applications
- Battery-powered equipment.
- Smartphones and tablets.
- Cameras, DVRs, STBs, and camcorders.
- Low-voltage DC/DC post-regulators with ON/OFF functionality.
Q & A
- What is the maximum output current of the NCP134AMX105TCG?
The maximum output current is 500 mA.
- What is the output voltage accuracy of the NCP134AMX105TCG?
The output voltage accuracy is ±1.5% over the temperature range of -40°C to 85°C.
- What is the typical bias input current of the NCP134AMX105TCG?
The typical bias input current is 80 μA.
- Does the NCP134AMX105TCG have an enable function?
- What type of package does the NCP134AMX105TCG come in?
The device comes in an XDFN4 package (1.2 mm x 1.2 mm x 0.4 mm).
- Is the NCP134AMX105TCG RoHS compliant?
- What is the operating temperature range of the NCP134AMX105TCG?
The operating temperature range is -40°C to 85°C.
- Does the NCP134AMX105TCG have thermal protection?
- What is the dropout voltage at 500 mA output current?
The dropout voltage at 500 mA output current is typically between 140 mV and 250 mV.
- Can the NCP134AMX105TCG be used in noise-sensitive applications?
