TPS7A49中文资料具有使能功能的 150mA、36V、低噪声、高 PSRR、可调节低压降稳压器数据手册TI规格书

描述 Description

The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 µVRMS, 72-dB PSRR) linear regulators that can source a 150-mA load. These linear regulators include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function that allows for customized power-management schemes. Other available features include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions. The TPS7A49 family is designed using bipolar technology, and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes the device an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry. In addition, the TPS7A49 family of linear regulators is suitable for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications. For applications where positive and negative high-performance rails are required, consider TI’s TPS7A30xx family of negative high-voltage, ultralow-noise linear regulators as well.

特性 Features

• Input Voltage Range: 3 V to 36 V
• Noise:
• 12.7 µVRMS (20 Hz to 20 kHz)
• 15.4 µVRMS (10 Hz to 100 kHz)

• Power-Supply Ripple Rejection:
• 72 dB (120 Hz)
• ≥ 52 dB (10 Hz to 400 kHz)

• Adjustable Output: 1.194 V to 33 V
• Output Current: 150 mA
• Dropout Voltage: 260 mV at 100 mA
• Stable with Ceramic Capacitors ≥ 2.2 µF
• CMOS Logic-Level-Compatible Enable Pin
• Fixed Current-Limit and Thermal Shutdown Protection
• Packages: 8-Pin HVSSOP PowerPAD™ and3-mm × 3-mm VSON
• Operating Temperature Range:–40°C to 125°C