TPS7A85 Series
4-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Board Type | Channels per IC▲▼ | Utilized IC / Part | Current - Output▲▼ | Voltage - Input▲▼ | Voltage - Input▲▼ | Supplied Contents | Regulator Type | Voltage - Output▲▼ | Voltage - Output▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS7A85EVM-754TPS7A85 1 - Single Channels per IC Positive Adjustable Linear Voltage Regulator Evaluation Board | Fully Populated | 1 ul | TPS7A85 | 4 A | 6.5 V | 1.100000023841858 V | Board(s) | Positive Adjustable | 0.800000011920929 V | 5 V |
Key Features
• Low Dropout: 150 mV (typ) at 4 A1% (max) Accuracy Over Line, Load, and TemperatureOutput Voltage Noise:4.4 µVRMSat 0.8-V Output8.4 µVRMSat 5.0-V OutputInput Voltage Range:Without BIAS: 1.4 V to 6.5 VWith BIAS: 1.1 V to 6.5 VANY-OUT Operation:Output Voltage Range: 0.8 V to 3.95 VAdjustable Operation:Output Voltage Range: 0.8 V to 5.0 VPower-Supply Ripple Rejection:40 dB at 500 kHzExcellent Load Transient ResponseAdjustable Soft-Start In-Rush ControlOpen-Drain Power-Good (PG) OutputStable with a 47-µF or Larger Ceramic Output CapacitorOperating Temperature Range:–40ºC to +125°C3.5-mm × 3.5-mm, 20-Pin VQFNLow Dropout: 150 mV (typ) at 4 A1% (max) Accuracy Over Line, Load, and TemperatureOutput Voltage Noise:4.4 µVRMSat 0.8-V Output8.4 µVRMSat 5.0-V OutputInput Voltage Range:Without BIAS: 1.4 V to 6.5 VWith BIAS: 1.1 V to 6.5 VANY-OUT Operation:Output Voltage Range: 0.8 V to 3.95 VAdjustable Operation:Output Voltage Range: 0.8 V to 5.0 VPower-Supply Ripple Rejection:40 dB at 500 kHzExcellent Load Transient ResponseAdjustable Soft-Start In-Rush ControlOpen-Drain Power-Good (PG) OutputStable with a 47-µF or Larger Ceramic Output CapacitorOperating Temperature Range:–40ºC to +125°C3.5-mm × 3.5-mm, 20-Pin VQFN
Description
AI
The TPS7A85 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 5.0 V using an external resistor divider.
The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A85 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 TPS7A85 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 5.0-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 TPS7A85 ensure optimal system performance.
The versatility of the TPS7A85 makes the device a component of choice for many demanding applications.
The TPS7A85 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 5.0 V using an external resistor divider.
The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A85 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 TPS7A85 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 5.0-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 TPS7A85 ensure optimal system performance.
The versatility of the TPS7A85 makes the device a component of choice for many demanding applications.