Overview
The TLV70012DDCR is a 200-mA, low-IQ (quiescent current), low-dropout linear voltage regulator 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 2% output voltage accuracy. 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 various portable devices.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| VIN | Input voltage range | 2 | 5.5 | V | |
| VOUT | DC output accuracy | –2% | 2% | % | |
| ΔVOUT(ΔVIN) | Line regulation | 1 | 5 | mV | |
| ΔVOUT(ΔIOUT) | Load regulation | 0 mA ≤ IOUT ≤ 200 mA | 1 | 15 | mV |
| VOUT noise voltage | VIN = 2.3 V, VOUT = 1.8 V, IOUT = 10 mA | 43 | 48 | μVRMS | |
| tSTR | Start-up time | COUT = 1 μF, IOUT = 200 mA | 100 | μs | |
| VEN(high) | Enable pin high (enabled) | 0.9 | VIN | V | |
| VEN(low) | Enable pin low (disabled) | 0 | 0.4 | V | |
| IEN | Enable pin current | VIN = VEN = 5.5 V | 0.04 | 0.5 | μA |
| UVLO | Undervoltage lockout | VIN rising | 1.9 | V | |
| Tsd | Thermal shutdown temperature | 160 | °C | ||
| TJ | Operating junction temperature | –40 | 125 | °C |
Key Features
- Low Quiescent Current: The TLV70012DDCR 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.
- Precision Output Voltage: The device features a precision bandgap and error amplifier, providing an overall 2% output voltage accuracy.
- Integrated Protection Features: Includes thermal shutdown, current limit, and undervoltage lockout (UVLO) for robust operation.
- Enable Pin: The device can be enabled or disabled using the active high enable pin.
- Compact Package: Available in a 5-pin TSOT-23 package, suitable for space-constrained designs.
Applications
The TLV70012DDCR is designed for use in various battery-operated handheld devices and other portable equipment. It is particularly suitable for applications requiring low power consumption, high stability, and compact design. Some common applications include:
- Battery-powered handheld devices
- Portable electronics
- Wireless communication devices
- Medical devices
- Consumer electronics
Q & A
- What is the input voltage range of the TLV70012DDCR? The input voltage range is from 2 V to 5.5 V.
- What is the output current capability of the TLV70012DDCR? The device can supply up to 200 mA of output current.
- How accurate is the output voltage of the TLV70012DDCR? The output voltage accuracy is ±2% over the operating temperature range.
- What protection features are integrated into the TLV70012DDCR? The device includes thermal shutdown, current limit, and undervoltage lockout (UVLO).
- How is the enable pin controlled on the TLV70012DDCR? 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 TLV70012DDCR? The operating junction temperature range is from –40°C to +125°C.
- What is the typical start-up time of the TLV70012DDCR? The start-up time is typically 100 μs with a 1 μF output capacitor and 200 mA output current.
- What is the package type of the TLV70012DDCR? The device is available in a 5-pin TSOT-23 package.
- What are some common applications for the TLV70012DDCR? Common applications include battery-operated handheld devices, portable electronics, wireless communication devices, and medical devices.
- How does the TLV70012DDCR handle reverse voltage conditions? The device has a built-in body diode that conducts current when the output voltage exceeds the input voltage. External limiting is recommended for extended reverse voltage operation.
