TPS7A8500ARGRR TPS7A8500ARGRT 有现货 可添加我们联系方式获取最优惠价格
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描述
The TPS7A85A is a low-noise (4.4 µVRMS), low dropout linear regulator (LDO) capable of sourcing 4 A with only 240 mV of maximum dropout. The device output voltage is pin-programmable from 0.8 V to 3.95 V and adjustable from 0.8 V to 5.1 V using an external resistor divider.
The combination of low-noise (4.4 µVRMS), high- PSRR, and high output current capability makes the TPS7A85A ideal to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. The high performance of the TPS7A85A limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. Specifically, RF amplifiers benefit from the high-performance and 5.1-V output capability of the device.
For digital loads (such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)) requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (0.75% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A85A ensure optimal system performance.
The versatility of the TPS7A8500A makes the device a component of choice for many demanding applications.
特性
Low Dropout: 150 mV (Typical) at 4 A
0.75% (Maximum) Accuracy Over Line, Load, and Temperature With BIAS
Output Voltage Noise:
4.4 µVRMS at 0.8-V Output
7.7 µVRMS at 5.1-V Output
Input Voltage Range:
Without BIAS: 1.4 V to 6.5 V
With BIAS: 1.1 V to 6.5 V
ANY-OUT™ Operation:
Output Voltage Range: 0.8 V to 3.95 V
Adjustable Operation:
Output Voltage Range: 0.8 V to 5.1 V
Power-Supply Ripple Rejection:
40 dB at 500 kHz
Excellent Load Transient Response
Adjustable Soft-Start In-Rush Control
Open-Drain Power-Good (PG) Output
Stable with a 47-µF or Larger Ceramic Output Capacitor
θJC = 3.4°C/W
3.5-mm × 3.5-mm, 20-Pin VQFN
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