TPS7A4701RGWR Part Information
Details for TPS7A4701RGWR by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators

Part 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 userprogrammable (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-andmeasurement, audio, and RF applications. For applications where positive and negative lownoise rails are required, consider TI's TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.
Part Downloads

Part Features
- Available in High-Performance Thermal Package: 5-mm u00d7 5-mm QFN
- Built-In Fixed Current Limit and Thermal Shutdown
- CMOS Logic Level-Compatible Enable Pin
- Dropout Voltage: 307 mV at 1 A
- Input Voltage Range: +3 V to +36 V
- Operating Temperature Range:
- Output Current: 1 A
- Output Voltage Noise: 4 u00b5VRMS (10 Hz, 100 kHz)
- Power-Supply Ripple Rejection: u2013 82 dB (100 Hz) u2013 u2265 55 dB (10 Hz, 10 MHz)
- Two Output Voltage Modes: u2013 ANY-OUTu2122 Version (User-Programmable Output via PCB Layout): u2013 No External Feedback Resistors or Feed- Forward Capacitors Required u2013 Output Voltage Range: +1.4 V to +20.5 V u2013 Adjustable Version (TPS7A4701 only): u2013 Output Voltage Range: +1.4 V to +34 V
Part Specifications
Output Type | Adjustable |
Input Voltage Min | 3V |
Input Voltage Max | 36V |
Fixed Output Voltage Nom. | - |
Adjustable Output Voltage Min | 1.4V |
Adjustable Output Voltage Max | 20.5V |
Output Current | 1A |
Dropout Voltage Vdo | 307mV |
LDO Regulator Case Style | VQFN |
No. of Pins | 20Pins |
Operating Temperature Min | -40°C |
Operating Temperature Max | 125°C |
Product Range | Adj 1A LDO Voltage Regulators |
Automotive Qualification Standard | - |
RoHS Phthalates Compliant | Yes |
MSL | MSL 2 - 1 year |
SVHC | No SVHC (27-Jun-2018) |
Alternative Part Descriptions
- LDO, ADJ, 1A, 1.4V TO 20.5V, VQFN-20 | Newark Electronics
- 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable | Texas Instruments