Overview
The TLV70233DSER is a part of the TLV702 series of low-dropout (LDO) linear regulators produced by Texas Instruments. These regulators are designed for power-sensitive applications and feature low quiescent current, excellent line and load transient performance, and high power-supply rejection ratio (PSRR). The TLV702 series is ideal for a wide range of battery-operated handheld equipment due to its low output noise, very low dropout voltage, and integrated safety features such as thermal shutdown and current limit.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2 | 5.5 | V | |
| Output Voltage Range | 1.2 | 4.8 | V | |
| Output Current | 0 | 300 | mA | |
| Dropout Voltage | 37 mV @ IOUT = 50 mA, VOUT = 2.8 V | 75 mV @ IOUT = 100 mA, VOUT = 2.8 V | 220 mV @ IOUT = 300 mA, VOUT = 2.8 V | mV |
| Output Accuracy | -2% | 0.5% | 2% | % |
| Quiescent Current (IQ) | 35 | μA | ||
| Power-Supply Rejection Ratio (PSRR) | 68 dB @ 1 kHz | dB | ||
| Operating Junction Temperature | -40 | 125 | °C | |
| Thermal Shutdown Temperature | 165 | °C | ||
| Package | SOT-23 (5-pin), WSON (6-pin) |
Key Features
- Very low dropout voltage: 37 mV at IOUT = 50 mA, 75 mV at IOUT = 100 mA, and 220 mV at IOUT = 300 mA for VOUT = 2.8 V.
- Low quiescent current: 35 μA.
- High power-supply rejection ratio (PSRR): 68 dB at 1 kHz.
- Fixed-output voltage combinations possible from 1.2 V to 4.8 V.
- Stable with effective output capacitance of 0.1 μF.
- Integrated thermal shutdown and overcurrent protection.
- Low output noise.
- Active pulldown circuit (for TLV702P series) to quickly discharge the output.
Applications
- Wireless handsets.
- Smart phones.
- ZigBee® networks.
- Bluetooth® devices.
- Lithium-ion battery-operated handheld products.
- WLAN and other PC add-on cards.
Q & A
- What is the maximum output current of the TLV70233DSER? The maximum output current is 300 mA.
- What is the typical quiescent current of the TLV70233DSER? The typical quiescent current is 35 μA.
- What is the power-supply rejection ratio (PSRR) of the TLV70233DSER? The PSRR is 68 dB at 1 kHz.
- What are the available output voltage ranges for the TLV702 series? The output voltage ranges from 1.2 V to 4.8 V.
- What are the package options for the TLV70233DSER? The device is available in SOT-23 (5-pin) and WSON (6-pin) packages.
- What safety features are integrated into the TLV70233DSER? The device includes thermal shutdown, overcurrent protection, and undervoltage lockout (UVLO).
- 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.
- What is the operating junction temperature range of the TLV70233DSER? The operating junction temperature range is from -40°C to 125°C.
- How does the TLV70233DSER handle dropout conditions? In dropout mode, the output voltage is the same as the input voltage minus the dropout voltage, and the transient performance is significantly degraded.
- What type of capacitors are recommended for input and output? 1-μF X5R- and X7R-type ceramic capacitors are recommended due to their minimal variation in value and equivalent series resistance (ESR) over temperature.
