TPS7A4518是TI公司的一款单通道LDO产品，TPS7A4518是低噪声快速瞬态响应 1.5A LDO 稳压器，本页介绍了TPS7A4518的产品说明、应用、特性等，并给出了与TPS7A4518相关的TI元器件型号供参考。
TPS7A4518 - 低噪声快速瞬态响应 1.5A LDO 稳压器 - 单通道LDO - 线性稳压器(LDO) - TI公司（Texas Instruments，德州仪器）
- Optimized for Fast Transient Response
- Output Current: 1.5 A
- High Output Voltage Accuracy: 1% at 25°C
- Dropout Voltage: 300 mV
- Low Noise: 35 μVRMS (10 Hz to 100 kHz)
- High Ripple Rejection: 68dB at 1 kHz
- 1-mA Quiescent Current
- No Protection Diodes Needed
- Controlled Quiescent Current in Dropout
- Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V
- Adjustable Output from 1.21 V to 20 V (TPS7A4501 Only)
- Less Than 1-μA Quiescent Current in Shutdown
- Stable With 10-μF Ceramic Output Capacitor
- Reverse-Battery Protection
- Reverse Current Protection
- Industrial
- Wireless Infrastructure
- Radio-Frequency Systems
The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5A of output current with a dropout voltage of 300mV. Operating quiescent current is 1mA, dropping to less than 1μA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. In addition to fast transient response, the TPS7A45xx regulators have very-low output noise, which makes them ideal for sensitive RF supply applications.
Output voltage range is from 1.21 to 20V. The TPS7A45xx regulators are stable with output capacitance as low as 10μF. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V, and as an adjustable device with a 1.21-V reference voltage.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS7A45xx | SOT-223 (6) | 6.50 mm × 7.06 mm |
| TO-263 (5) | 10.16 mm × 15.24 mm |
