Overview
The TLV70033DSER is a 200-mA, low-quiescent current (Low-IQ), low-dropout linear regulator from Texas Instruments. This device is part of the TLV700 series, designed for power-sensitive applications, particularly in battery-operated handheld equipment. It features a precision bandgap and error amplifier, ensuring a high DC output accuracy of ±2% over the operating temperature range. The regulator is known for its low output noise, high power-supply rejection ratio (PSRR), and low dropout voltage, making it ideal for applications requiring stable and efficient power regulation.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | 2 | 5.5 | V | ||
| DC Output Accuracy | -40°C ≤ TJ ≤ +125°C | -2% | 2% | % | |
| Line Regulation | VOUT(nom) + 0.3 V ≤ VIN ≤ 5.5 V, IOUT = 10 mA | 1 | 5 | mV | |
| Load Regulation | 0 mA ≤ IOUT ≤ 200 mA | 1 | 15 | mV | |
| Output Current | 200 | mA | |||
| Dropout Voltage | (VIN - VOUT) when PMOS is in linear region | V | |||
| Thermal Shutdown | °C | ||||
| Undervoltage Lockout (UVLO) | V | ||||
| Enable Pin Voltage | EN pin voltage to enable/disable the device | 0.4 | 0.9 | V |
Key Features
- Precision Bandgap and Error Amplifier: Ensures a high DC output accuracy of ±2% over the operating temperature range.
- Low Quiescent Current: Suitable for power-sensitive applications.
- Low Dropout Voltage: Achieved using a PMOS pass transistor, which scales approximately with output current.
- High PSRR and Low Output Noise: Ideal for applications requiring stable power regulation.
- Integrated Thermal Shutdown, Current Limit, and UVLO: Provides protection during fault conditions and ensures the device operates properly before output is enabled.
- Enable Pin (EN): Active high, allowing for easy control of the device's operation.
Applications
The TLV70033DSER is particularly suited for battery-operated handheld equipment due to its low quiescent current, low dropout voltage, and high PSRR. It is ideal for use in portable devices such as smartphones, tablets, and other mobile electronics where power efficiency and stability are crucial. Additionally, it can be used in various other applications requiring low noise and high accuracy voltage regulation.
Q & A
- What is the input voltage range of the TLV70033DSER?
The input voltage range is from 2 V to 5.5 V. - What is the typical output current of the TLV70033DSER?
The typical output current is 200 mA. - What is the DC output accuracy of the TLV70033DSER?
The DC output accuracy is ±2% over the operating temperature range. - Does the TLV70033DSER have built-in protection features?
Yes, it includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO). - How is the device enabled or disabled?
The device is enabled when the voltage at the EN pin is above 0.9 V and disabled when it is below 0.4 V. - What is the significance of the PMOS pass transistor in the TLV70033DSER?
The PMOS pass transistor helps achieve low dropout voltage and scales approximately with output current. - What are the key benefits of the high PSRR and low output noise in the TLV70033DSER?
These features ensure stable power regulation, which is crucial for battery-operated handheld equipment. - Can the TLV70033DSER be used in applications other than handheld devices?
Yes, it can be used in any application requiring low noise and high accuracy voltage regulation. - What is the typical operating temperature range for the TLV70033DSER?
The operating temperature range is from -40°C to +125°C. - How does the undervoltage lockout (UVLO) feature work in the TLV70033DSER?
The UVLO circuit keeps the output shut off until the internal circuitry is operating properly.
