Overview
The TLV70033DDCT is a low-dropout (LDO) linear regulator from Texas Instruments, designed for power-sensitive applications. This device is part of the TLV700 series, which features low quiescent current and excellent line and load transient performance. The TLV70033DDCT is particularly suited for battery-operated handheld equipment due to its low output noise, high power-supply rejection ratio (PSRR), and low dropout voltage. It offers a precision bandgap and error amplifier, ensuring an overall 2% accuracy in output voltage regulation.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Voltage Range | 2.0 to 5.5 | V |
| Output Voltage | 3.3 | V |
| Maximum Output Current | 200 | mA |
| Dropout Voltage | 43 mV at IOUT = 50 mA, 85 mV at IOUT = 100 mA, 175 mV at IOUT = 200 mA | mV |
| Quiescent Current | 31 µA | µA |
| PSRR at 1 kHz | 68 dB | dB |
| Operating Junction Temperature Range | -40 to 125 | °C |
| Package Type | SOT-23-THN (DDC) | |
| Number of Pins | 5 |
Key Features
- Very Low Dropout Voltage: 43 mV at IOUT = 50 mA, 85 mV at IOUT = 100 mA, and 175 mV at IOUT = 200 mA
- High Accuracy: 2% accuracy over the operating temperature range
- Low Quiescent Current: 31 µA
- High PSRR: 68 dB at 1 kHz
- Stable with Low Capacitance: Stable with an effective output capacitance of 0.1 µF
- Thermal Shutdown and Overcurrent Protection: Integrated thermal shutdown and current limit for safety
- Enable Pin: Active high enable pin for shutdown capability
- Undervoltage Lockout (UVLO): Ensures the output is shut off until internal circuitry is operating properly
Applications
- Wireless Handsets: Ideal for power-sensitive wireless handsets
- Smart Phones and PDAs: Suitable for battery-operated smartphones and personal digital assistants
- MP3 Players: Used in portable audio devices
- ZigBee and Bluetooth Devices: Applicable in low-power wireless communication devices
- Li-Ion Operated Handheld Products: Suitable for a variety of lithium-ion battery-powered handheld devices
Q & A
- What is the typical dropout voltage of the TLV70033DDCT?
The typical dropout voltage is 43 mV at IOUT = 50 mA, 85 mV at IOUT = 100 mA, and 175 mV at IOUT = 200 mA
- What is the quiescent current of the TLV70033DDCT?
The quiescent current is 31 µA
- What is the PSRR of the TLV70033DDCT at 1 kHz?
The PSRR is 68 dB at 1 kHz
- What is the operating junction temperature range of the TLV70033DDCT?
The operating junction temperature range is -40°C to 125°C
- What type of package does the TLV70033DDCT come in?
The TLV70033DDCT comes in a SOT-23-THN (DDC) package
- Does the TLV70033DDCT have thermal shutdown and overcurrent protection?
Yes, it has integrated thermal shutdown and current limit for safety
- What is the minimum effective output capacitance required for stability?
The device is stable with an effective output capacitance of 0.1 µF or larger
- How does the enable pin function?
The enable pin is active high; the device is enabled when the voltage at the EN pin goes above 0.9 V and disabled when it is below 0.4 V
- What is the maximum output current of the TLV70033DDCT?
The maximum output current is 200 mA
- What are some common applications of the TLV70033DDCT?
Common applications include wireless handsets, smart phones, PDAs, MP3 players, ZigBee and Bluetooth devices, and Li-Ion operated handheld products
