Overview
The TLV70012DDCT is a 200-mA, low quiescent current (low-IQ), low-dropout linear voltage regulator (LDO) produced by Texas Instruments. This device is designed for power-sensitive applications, particularly in battery-operated handheld equipment. It features a precision bandgap and error amplifier, providing an overall output voltage accuracy of 2%. The TLV700 series is known for its excellent line and load transient performance, low output noise, and very high power supply rejection ratio (PSRR), making it ideal for a variety of portable devices.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 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 Noise Voltage | VIN = 2.3 V, VOUT = 1.8 V, IOUT = 10 mA | 43 | 48 | μVRMS | |
| Start-up Time | COUT = 1 μF, IOUT = 200 mA | 100 | μs | ||
| Enable Pin High (Enabled) | VEN(high) | 0.9 | VIN | V | |
| Enable Pin Low (Disabled) | VEN(low) | 0 | 0.4 | V | |
| Enable Pin Current | VIN = VEN = 5.5 V | 0.04 | 0.5 | μA | |
| Undervoltage Lockout | VIN rising | 1.9 | V | ||
| Thermal Shutdown Temperature | Shutdown, temperature increasing | 160 | °C | ||
| Operating Junction Temperature | –40 | 125 | °C |
Key Features
- Low Quiescent Current: The TLV70012DDCT has a low quiescent current, making it suitable for power-sensitive applications.
- High PSRR and Low Output Noise: Excellent power supply rejection ratio and low output noise ensure stable output voltage.
- Low Dropout Voltage: The device features a low dropout voltage, which is beneficial for battery-operated devices.
- Integrated Protection Features: Includes thermal shutdown, current limit, and undervoltage lockout (UVLO) for robust protection.
- Enable Pin: The device can be enabled or disabled using the active high enable pin.
- Compact Package: Available in a 5-SOT-23-THIN package, making it suitable for space-constrained designs.
Applications
- Portable Devices: Ideal for battery-operated handheld equipment such as smartphones, tablets, and other mobile devices.
- Wearable Electronics: Suitable for wearables like smartwatches and fitness trackers.
- IoT Devices: Can be used in various Internet of Things (IoT) applications requiring low power consumption and stable voltage regulation.
- Medical Devices: Applicable in medical devices that require reliable and efficient power management.
Q & A
- What is the input voltage range of the TLV70012DDCT?
The input voltage range is from 2 V to 5.5 V. - What is the maximum output current of the TLV70012DDCT?
The maximum output current is 200 mA. - What is the typical output noise voltage of the TLV70012DDCT?
The typical output noise voltage is 48 μVRMS. - Does the TLV70012DDCT have built-in protection features?
Yes, it includes thermal shutdown, current limit, and undervoltage lockout (UVLO). - How is the enable pin controlled on the TLV70012DDCT?
The enable pin is active high, meaning 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 operating junction temperature range of the TLV70012DDCT?
The operating junction temperature range is from –40°C to +125°C. - What package type is the TLV70012DDCT available in?
The TLV70012DDCT is available in a 5-SOT-23-THIN package. - What are some common applications of the TLV70012DDCT?
Common applications include portable devices, wearable electronics, IoT devices, and medical devices. - How does the TLV70012DDCT handle fault conditions?
The device has an internal current limit that protects it during fault conditions, and it also cycles between current limit and thermal shutdown if the fault persists. - What is the start-up time of the TLV70012DDCT?
The start-up time is typically 100 μs with a 1 μF output capacitor and 200 mA output current.
