1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable
Product details
Parameters
Package | Pins | Size
Features
- Input Voltage Range: +3 V to +36 V
- Output Voltage Noise:
4 µVRMS (10 Hz, 100 kHz) - Power-Supply Ripple Rejection:
- 82 dB (100 Hz)
- > 55 dB (10 Hz, 10 MHz)
- Two Output Voltage Modes:
- ANY-OUT™ Version (User-Programmable
Output via PCB Layout):- No External Feedback Resistors or
Feed-Forward Capacitors Required - Output Voltage Range: +1.4 V to +20.5 V
- No External Feedback Resistors or
- Adjustable Version (TPS7A4701 only):
- Output Voltage Range: +1.4 V to +34 V
- ANY-OUT™ Version (User-Programmable
- Output Current: 1 A
- Dropout Voltage: 307 mV at 1 A
- CMOS Logic Level-Compatible Enable Pin
- Built-In Fixed Current Limit and
Thermal Shutdown - Available in High-Performance Thermal Package:
5-mm × 5-mm QFN - Operating Temperature Range:
–40°C to 125°C
Description
The TPS7A47 is a family of positive voltage (+36 V), ultralow-noise (4 µVRMS) low-dropout linear regulators (LDO) capable of sourcing a 1-A load.
The TPS7A4700 output voltages are user-programmable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count.
The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (up to 20.5 V), or adjustable (up to 34 V) with external feedback resistors.
The TPS7A47 is designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This feature makes the device ideal for powering operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry in critical applications such as medical, radio frequency (RF), and test-and-measurement.
In addition, the TPS7A47 is ideal for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversions, maximum system performance is ensured in sensitive instrumentation, test-and-measurement, audio, and RF applications.
For applications where positive and negative low-noise rails are required, consider TIs TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.
Similar but not functionally equivalent to the compared device:
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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Features
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Features
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Description
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Features
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Features
- Clocking provided by onboard crystal or external source
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Description
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Features
- Operational amplifier provides buffering and signal conditioning for DC-coupled input network
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Description
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Features
- External clocking supported or onboard clock generation with LMK04828-generating SYSREF
- JESD204B data interface simplifies digital interface; compliant up to 12.5-GBPS lane rates
- Onboard power management with Texas Instruments
Description
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Features
- Includes all required support circuitry for ADS114S08
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily accessible signals via test points and headers
Description
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Features
- Includes all required support circuitry for ADS122C04
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily accessible signals via test points and headers
Description
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Features
- Includes all required support circuitry for ADS122U04
- Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
- Configurable inputs, references, and supplies
- Easily accessible signals via test points and headers
Description
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Features
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Description
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Features
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Description
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Features
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Description
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Features
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Description
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Features
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Description
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Features
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Description
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Features
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Description
Features
- Allows evaluation of DAC38RF87/97 up to 9-GSPS sampling rate
- Supports up to 12.5-Gbps SerDes signaling rate across FMC
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Description
The DDC2256AEVM evaluation module (EVM) is an evaluation kit for the DDC2256A, a 256-channel, current input, 24-bit analog-to-digital (A/D) converter. The EVM kit, comprised of a DUT board and a capture board, contains two DDC2256A (...)
Features
- All-in-one solution for evaluating two DDC2256A devices in a system-like setting
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- Flexible supply configurations for simple or advanced experimentation
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Description
PLABS-SAR-EVM-PDK is an experimental platform used in conjunction with TI Precision Labs videos to gain a deeper understanding of successive approximation register (SAR) analog-to-digital converter (ADC) circuits. The evaluation module (EVM) platform contains two channels for common SAR (...)
Features
- Intuitive setup – PCB overlay shows the schematic
- No external power supply required
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Description
Features
- Input voltage range: –3 V to –36 V
- Noise: 14 μVRMS (20 Hz, 20 kHz), 15.1 μVRMS (10 Hz, 100 kHz)
- Power-supply ripple rejection: 65 dB (1 kHz)
- Fixed output: –15 V
- Dropout voltage: 0.6 V at 1 A
- Stable with ceramic capacitors ≥ 10 μF
- CMOS logic level-compatible enable
- Thermal shutdown protection
- Overcurrent (...)
Description
Features
- Input voltage range: 3 V to 36 V
- Programmable from 1.4 V to 34 V; pin-strap output voltage from 1.4 V to 18 V
- Low dropout: 600 mV at 1 A
- 3.5 µVRMS (10 Hz, 100 KHz)
- <25 nV/√Hz (10 Hz, 1 MHz)
- Built-in fixed current limit and thermal shutdown
- CMOS logic-level-compatible enable (EN) pin
- Maximum output current of (...)
Description
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The DAC38RF80 (...)
Features
- RF-sampling transceiver utilizing the JESD204B interface
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- Onboard clocking solution; four different ADC clocking options, including TX PLL clock output
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Description
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The DAC38RF82 (...)
Features
- RF-sampling transceiver utilizing the JESD204B interface
- DAC38RF82 dual RF DAC with differential output
- ADC32RF45 dual RF ADC with bypass option
- LDO-less power-management solution
- Onboard clocking solution; four different ADC clocking options, including TX PLL clock output
- Interfaces with TSW14J56 or FPGA (...)
Design tools & simulation
Reference designs
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RGW) | 20 | View options |
Ordering & quality
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- Lead finish/Ball material
- MSL rating/Peak reflow
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- Ongoing reliability monitoring
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