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TPS7A4701QRGWTQ1

IC REG LINEAR POS ADJ 1A 20VQFN

Part Number: TPS7A4701QRGWTQ1

Manufacturer: Texas Instruments

Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package: 20-VQFN Exposed Pad

Datasheet:: TPS7A4701QRGWTQ1.pdf

Description: IC REG LINEAR POS ADJ 1A 20VQFN

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

TPS7A4701QRGWTQ1 35-V, 1-A, 4.2-µVRMS, RF LDO Voltage Regulator

A comprehensive technical overview of the TPS7A4701QRGWTQ1, an automotive-grade, ultra-low-noise, high-PSRR low-dropout linear regulator from Texas Instruments. Covers device function, core features, electrical specifications, 20-lead VQFN package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 20-Lead VQFN (RGW) 3V to 35V Input

Device Classification Ultra-Low-Noise LDO Voltage Regulator

Part Number: TPS7A4701QRGWTQ1

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +125°C

PRODUCT OVERVIEW

What Is the TPS7A4701QRGWTQ1?

TPS7A4701QRGWTQ1 is a positive voltage (35 V), ultra-low-noise (4.2 µVRMS) low-dropout linear regulator (LDO) from Texas Instruments, capable of sourcing a 1-A load. The device is AEC-Q100 qualified for automotive applications and operates over a –40°C to +125°C ambient temperature range.[reference:0]

The TPS7A4701QRGWTQ1 output voltage can be configured with a user-programmable printed circuit board (PCB) layout (up to 20.5 V) via the ANY-OUT™ version, or adjustable (up to 34 V) with external feedback resistors.[reference:1] Designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications, this device is ideal for powering operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry.[reference:2]

In addition, the TPS7A4701QRGWTQ1 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, audio, and RF applications.[reference:3]

Ultra-Low Noise 4.2 µVRMS output voltage noise (10 Hz–100 kHz) for noise-sensitive analog and RF applications.[reference:4]

Automotive Qualified AEC-Q100 Grade 1 qualified with –40°C to +125°C ambient operating temperature range.[reference:5]

High PSRR 82 dB at 100 Hz and ≥55 dB (10 Hz–10 MHz) for excellent power-supply ripple rejection.[reference:6]

DEVICE HIGHLIGHTS

Key Features and Benefits of TPS7A4701QRGWTQ1

Ultra-Low Output Noise

4.2 µVRMS output voltage noise (10 Hz–100 kHz) ensures clean power rails for high-precision instrumentation, audio, and RF applications.[reference:7]

High Power-Supply Rejection Ratio

82 dB at 100 Hz and ≥55 dB from 10 Hz to 10 MHz provide excellent rejection of power-supply ripple and switching converter noise.[reference:8]

AEC-Q100 Qualified for Automotive

Grade 1 qualified with –40°C to +125°C ambient operating temperature range, HBM ESD Classification Level 2, and CDM ESD Classification Level C4A.[reference:9]

Flexible Output Voltage Configuration

ANY-OUT™ version allows user-programmable output via PCB layout (up to 20.5 V), or adjustable operation up to 34 V with external feedback resistors.[reference:10]

Wide Input & Output Range

Input voltage: 3 V to 35 V; Output voltage: 1.4 V to 34 V (adjustable) or 1.4 V to 20.5 V (ANY-OUT). Output current: 1 A.[reference:11]

Robust Thermal & Protection Features

Thermal resistance θJA = 31.1°C/W, dropout voltage of 307 mV at 1 A, built-in current limit, and thermal shutdown for reliable operation.[reference:12]

REFERENCE DATA

Technical Specifications for TPS7A4701QRGWTQ1

Part Number	TPS7A4701QRGWTQ1	Manufacturer	Texas Instruments
Device Type	Ultra-Low-Noise LDO Voltage Regulator	Input Voltage (VIN)	3 V to 35 V[reference:13]
Output Voltage (Adjustable)	1.4 V to 34 V[reference:14]	Output Voltage (ANY-OUT)	1.4 V to 20.5 V[reference:15]
Output Current	1 A[reference:16]	Dropout Voltage @ 1 A	307 mV (Typical)[reference:17]
Output Noise (10 Hz–100 kHz)	4.2 µVRMS[reference:18]	PSRR @ 100 Hz	82 dB[reference:19]
PSRR (10 Hz–10 MHz)	≥55 dB[reference:20]	Quiescent Current (Iq Typ)	0.58 mA
Thermal Resistance θJA	31.1°C/W[reference:21]	Enable Pin	CMOS Logic Level Compatible[reference:22]
Package	20-Lead VQFN (RGW)[reference:23]	Package Body Size	5.00 mm × 5.00 mm[reference:24]
Mounting Type	Surface Mount	Operating Junction Temperature	-40°C to +145°C[reference:25]
Ambient Operating Temperature	-40°C to +125°C[reference:26]	Storage Temperature Range	-65°C to +150°C
ESD Protection (HBM)	Class 2[reference:27]	ESD Protection (CDM)	Class C4A[reference:28]
Qualification	AEC-Q100 Grade 1[reference:29]	MSL Rating	Level-2-260C-1 YEAR

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for TPS7A4701QRGWTQ1

Output Voltage Configuration

The TPS7A4701QRGWTQ1 offers two output voltage configuration modes:

ANY-OUT™ Mode: User-programmable output voltage via PCB layout, up to 20.5 V. Allows programming without external feedback resistors.[reference:30]
Adjustable Mode: Output voltage up to 34 V using external feedback resistors. Resistor combinations for standard rail voltages are provided in the datasheet.[reference:31]
If enable is not required, tie EN to IN for normal operation.

PCB and Power-Supply Guidance

LDO regulator performance depends on layout, bypassing, and thermal management:

Place input and output capacitors as close as possible to the device pins to minimize parasitic inductance.
Use low-ESR ceramic capacitors for optimal stability and transient response.
Ensure adequate PCB copper area for thermal dissipation. Thermal resistance θJA = 31.1°C/W.[reference:32]
For post dc-dc converter regulation, the high PSRR (≥55 dB from 10 Hz–10 MHz) effectively filters switching noise.[reference:33]
Verify the recommended PCB footprint from the official datasheet before production.

20-LEAD VQFN (RGW)

Pin Configuration Reference for TPS7A4701QRGWTQ1

TPS7A47

VQFN (RGW) TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The RGW package has 20 pins with exposed thermal pad.[reference:34]

1 NC No Connect - Not Internally Connected

2 IN Input Voltage - 3 V to 35 V Supply[reference:35]

3 EN Enable Input (Active HIGH) - CMOS Logic Compatible[reference:36]

4 NC No Connect - Not Internally Connected

5 NC No Connect - Not Internally Connected

6 NC No Connect - Not Internally Connected

7 NC No Connect - Not Internally Connected

8 FB Feedback Input - Connect to external resistor divider for adjustable mode

9 NC No Connect - Not Internally Connected

10 NC No Connect - Not Internally Connected

11 NC No Connect - Not Internally Connected

12 NC No Connect - Not Internally Connected

13 NC No Connect - Not Internally Connected

14 NC No Connect - Not Internally Connected

15 NC No Connect - Not Internally Connected

16 NC No Connect - Not Internally Connected

17 OUT Regulated Output Voltage

18 OUT Regulated Output Voltage

19 OUT Regulated Output Voltage

20 OUT Regulated Output Voltage

APPLICATION AREAS

Typical Applications for TPS7A4701QRGWTQ1

RF & Wireless Communications

Voltage-Controlled Oscillators (VCO), Rx, Tx, and PA circuitry requiring ultra-low-noise power supplies.[reference:37]

Automotive Infotainment & Cluster

Automotive infotainment systems, instrument clusters, and navigation units with AEC-Q100 qualification.[reference:38]

High-Precision Analog Circuitry

Supply rails for operational amplifiers, DACs, ADCs, and other high-performance analog circuits.[reference:39]

Post DC-DC Converter Regulation

Filtering output voltage ripple from dc-dc switching converters to ensure clean power for sensitive instrumentation and audio applications.[reference:40]

Audio & Hi-Fi Equipment

Ultra-low noise and high PSRR make it ideal for powering high-end audio amplifiers and codecs.

Industrial & Test Equipment

Precision measurement circuits, data acquisition systems, and industrial automation requiring clean, stable voltage rails.

REPLACEMENT GUIDANCE

Selecting an Alternative for TPS7A4701QRGWTQ1

A replacement for the TPS7A4701QRGWTQ1 should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements.

Input voltage range (3 V–35 V)[reference:41]

Output voltage range (1.4 V–34 V)[reference:42]

Output current capability (1 A)[reference:43]

Output noise (4.2 µVRMS)[reference:44]

PSRR (82 dB @ 100 Hz, ≥55 dB 10 Hz–10 MHz)[reference:45]

AEC-Q100 automotive qualification[reference:46]

Package (20-lead VQFN, 5mm × 5mm)[reference:47]

Operating temperature range (–40°C to +125°C)[reference:48]

Family alternatives: TPS7A4700 (higher output voltage option), TPS7A4701-EP (enhanced product for aerospace/defense), TPS7A88-Q1 (dual-channel LDO), TPS7B8601QDDARQ1 (automotive LDO alternative). Select based on output voltage, package, and qualification requirements.

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MANUFACTURER INFORMATION

Texas Instruments

The TPS7A47-Q1 (TPS7A4701QRGWTQ1) belongs to the automotive-grade, ultra-low-noise LDO voltage regulator portfolio of Texas Instruments. The family is designed for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance.[reference:49]

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: TPS7A4701QRGWTQ1

Manufacturer: Texas Instruments

Package: 20-VQFN Exposed Pad

Series: -

Package/Case: 20-VQFN Exposed Pad

Packaging: Tape & Reel (TR)

Product Status: Active

Output Configuration: Positive

Output Type: Adjustable/Programmable

Number of Regulators: 1

Voltage - Input (Max): 35V

Voltage - Output (Min/Fixed): 1.4V

Voltage - Output (Max): 34V

Voltage Dropout (Max): 0.45V @ 1A

Current - Output: 1A

Current - Quiescent (Iq): 1 mA

Current - Supply (Max): 6.1 mA

PSRR: 78dB (1kHz)

Control Features: Enable

Protection Features: Over Current, Over Temperature, Under Voltage Lockout (UVLO)

Operating Temperature: -40°C ~ 145°C (TJ)

Grade: Automotive

Qualification: AEC-Q100

Mounting Type: Surface Mount

Supplier Device Package: 20-VQFN (5x5)

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Part Number: TPS7A4701QRGWTQ1

Manufacturer: Texas Instruments

Package: 20-VQFN Exposed Pad

Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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