Overview
The TLV70233DBVT is a 300-mA, high-PSRR (Power Supply Rejection Ratio), low-IQ (Quiescent Current), low-dropout voltage regulator produced by Texas Instruments. This device is part of the TLV702 series, designed for power-sensitive applications and features excellent line and load transient performance. It is particularly suited for battery-operated handheld equipment due to its low output noise, high PSRR, and low dropout voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | TLV70233DBVT | |
| Output Current | 300 mA | mA |
| Output Voltage | 3.3 V (fixed) | V |
| Input Voltage Range | 2 V to 5.5 V | V |
| Dropout Voltage | 220 mV at IOUT = 300 mA, VOUT = 2.8 V | mV |
| Quiescent Current (IQ) | 35 μA | μA |
| Power Supply Rejection Ratio (PSRR) | 68 dB at 1 kHz | dB |
| Output Noise Voltage | 48 μVRMS (BW = 100 Hz to 100 kHz) | μVRMS |
| Enable Pin Voltage | 0.9 V (high), 0 V (low) | V |
| Thermal Shutdown Temperature | 165°C (shutdown), 145°C (reset) | °C |
| Package Type | SOT-23-5 | |
| Operating Junction Temperature | -40°C to +125°C | °C |
Key Features
- Low Dropout Voltage: Very low dropout voltage, e.g., 220 mV at IOUT = 300 mA, VOUT = 2.8 V.
- High PSRR: 68 dB at 1 kHz, ensuring minimal noise from the power supply.
- Low Quiescent Current: Only 35 μA, making it suitable for power-sensitive applications.
- Fixed-Output Voltage: Available in fixed-output voltage combinations from 1.2 V to 4.8 V.
- Thermal Shutdown and Overcurrent Protection: Integrated thermal shutdown and current limit for safety.
- Stable with Low Capacitance: Stable operation with an effective output capacitance of only 0.1 μF.
- Enable Pin: Active high enable pin for easy control.
Applications
- Wireless Handsets: Suitable for wireless handsets due to its low noise and high PSRR.
- Smart Phones: Ideal for smartphone applications requiring low power consumption.
- ZigBee® Networks and Bluetooth® Devices: Used in various wireless communication devices.
- Li-Ion Battery-Operated Handheld Products: Perfect for handheld devices powered by Li-ion batteries.
- WLAN and Other PC Add-on Cards: Applicable in various PC add-on cards requiring stable voltage regulation.
Q & A
- What is the maximum output current of the TLV70233DBVT?
The maximum output current is 300 mA.
- What is the typical quiescent current of the TLV70233DBVT?
The typical quiescent current is 35 μA.
- What is the power supply rejection ratio (PSRR) of the TLV70233DBVT?
The PSRR is 68 dB at 1 kHz.
- What is the dropout voltage of the TLV70233DBVT at 300 mA output current?
The dropout voltage is 220 mV at IOUT = 300 mA, VOUT = 2.8 V.
- What are the package types available for the TLV702 series?
The TLV702 series is available in 5-Pin SOT-23 and 1.5-mm × 1.5-mm, 6-Pin WSON packages.
- Does the TLV70233DBVT have thermal shutdown and overcurrent protection?
Yes, it has integrated thermal shutdown and current limit for safety.
- What is the operating junction temperature range of the TLV70233DBVT?
The operating junction temperature range is -40°C to +125°C.
- Can the TLV70233DBVT be used with low capacitance?
Yes, it is stable with an effective output capacitance of only 0.1 μF.
- How does the enable pin function on the TLV70233DBVT?
The enable pin is active high, meaning the regulator is enabled when the pin is set to 0.9 V or higher.
- What are some common applications of the TLV70233DBVT?
Common applications include wireless handsets, smartphones, ZigBee® networks, Bluetooth® devices, and Li-ion battery-operated handheld products.
