TPS7A4700 Series

1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

Catalog

1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

Part	Output Configuration	PSRR	Current - Output	Number of Regulators	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Supplier Device Package	Control Features	Voltage - Output (Max) [Max]	Mounting Type	Voltage Dropout (Max) [Max]	Voltage - Input (Max) [Max] [custom]	Current - Quiescent (Iq)	Package / Case	Voltage - Output (Min/Fixed)	Protection Features	Current - Supply (Max) [Max]
Texas Instruments TPS7A4700RGWT	Positive	78 dB	1 A	1	125 °C	-40 °C	Adjustable	20-VQFN (5x5)	Enable	20.5 V	Surface Mount	0.45 V	35 V	1 mA	20-VQFN Exposed Pad	1.4 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	6.1 mA
Texas Instruments TPS7A4700RGWR	Positive	78 dB	1 A	1	125 °C	-40 °C	Adjustable	20-VQFN (5x5)	Enable	20.5 V	Surface Mount	0.45 V	35 V	1 mA	20-VQFN Exposed Pad	1.4 V	Over Current Over Temperature Under Voltage Lockout (UVLO)	6.1 mA

Catalog

1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

Key Features

• Input Voltage Range: +3 V to +36 VOutput 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-ProgrammableOutput via PCB Layout):No External Feedback Resistors orFeed-Forward Capacitors RequiredOutput Voltage Range: +1.4 V to +20.5 VAdjustable Version (TPS7A4701 only):Output Voltage Range: +1.4 V to +34 VOutput Current: 1 ADropout Voltage: 307 mV at 1 ACMOS Logic Level-Compatible Enable PinBuilt-In Fixed Current Limit andThermal ShutdownAvailable in High-Performance Thermal Package:5-mm × 5-mm QFNOperating Temperature Range:–40°C to 125°CInput Voltage Range: +3 V to +36 VOutput 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-ProgrammableOutput via PCB Layout):No External Feedback Resistors orFeed-Forward Capacitors RequiredOutput Voltage Range: +1.4 V to +20.5 VAdjustable Version (TPS7A4701 only):Output Voltage Range: +1.4 V to +34 VOutput Current: 1 ADropout Voltage: 307 mV at 1 ACMOS Logic Level-Compatible Enable PinBuilt-In Fixed Current Limit andThermal ShutdownAvailable in High-Performance Thermal Package:5-mm × 5-mm QFNOperating 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 TI’s TPS7A33 family of negative high-voltage, ultralow-noise linear regulators. 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 TI’s TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.