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TPS7A4701RGWR

IC REG LINEAR POS ADJ 1A 20VQFN

Part Number: TPS7A4701RGWR

Manufacturer: Texas Instruments

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

Package: 20-VQFN Exposed Pad

Datasheet:: TPS7A4701RGWR.pdf

Description: IC REG LINEAR POS ADJ 1A 20VQFN

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

TPS7A4701RGWR 36-V, 1-A, 4-µVRMS, RF LDO Voltage Regulator

A comprehensive technical overview of the TPS7A4701RGWR, an 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 36V Input

Device Classification Ultra-Low-Noise LDO Voltage Regulator

Part Number: TPS7A4701RGWR

Mounting Type: Surface Mount

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

PRODUCT OVERVIEW

What Is the TPS7A4701RGWR?

TPS7A4701RGWR is a positive voltage (36 V), ultra-low-noise (4 µVRMS) low-dropout linear regulator (LDO) from Texas Instruments, capable of sourcing a 1-A load. The device operates over a –40°C to +125°C temperature range and is designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance.[reference:0][reference:1]

The TPS7A4701RGWR 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:2] 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.[reference:3]

In addition, the TPS7A4701RGWR 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.[reference:4]

Ultra-Low Noise 4 µVRMS output voltage noise (10 Hz–100 kHz) for noise-sensitive analog and RF applications.[reference:5]

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

Wide Input Range 3 V to 36 V input voltage range with 1-A output current capability.[reference:7][reference:8]

DEVICE HIGHLIGHTS

Key Features and Benefits of TPS7A4701RGWR

Ultra-Low Output Noise

4 µVRMS output voltage noise (10 Hz–100 kHz) ensures clean power rails for high-precision instrumentation, audio, and RF applications.[reference:9]

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:10]

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:11]

Wide Input & Output Range

Input voltage: 3 V to 36 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:12][reference:13]

Robust Thermal & Protection Features

Dropout voltage of 307 mV at 1 A, built-in fixed current limit, and thermal shutdown for reliable operation.[reference:14]

Compact Thermal Package

Available in a high-performance 5-mm × 5-mm 20-lead VQFN (RGW) thermal package.[reference:15]

REFERENCE DATA

Technical Specifications for TPS7A4701RGWR

Part Number	TPS7A4701RGWR	Manufacturer	Texas Instruments
Base Part Number	TPS7A4701	Device Type	Ultra-Low-Noise LDO Voltage Regulator
Input Voltage (VIN)	3 V to 36 V	Output Voltage (Adjustable)	1.4 V to 34 V
Output Voltage (ANY-OUT)	1.4 V to 20.5 V	Output Current	1 A
Dropout Voltage @ 1 A	307 mV (Typical)	Output Noise (10 Hz–100 kHz)	4 µVRMS
PSRR @ 100 Hz	82 dB	PSRR (10 Hz–10 MHz)	≥55 dB
Supply Current (Iq)	0.58 mA (Typical)	Enable Pin	CMOS Logic Level Compatible
Package	20-Lead VQFN (RGW)	Package Body Size	5.00 mm × 5.00 mm
Mounting Type	Surface Mount	Operating Temperature	-40°C to +125°C
Junction Temperature (Max)	150°C	Storage Temperature Range	-65°C to +150°C
ESD Protection (HBM)	Class 2	ESD Protection (CDM)	Class C4A
MSL Rating	Level-2-260C-1 YEAR	Lead Finish	NiPdAu
Packaging	Tape & Reel (3,000 per Reel)	RoHS	Yes

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 TPS7A4701RGWR

Output Voltage Configuration

The TPS7A4701RGWR offers two output voltage configuration modes:[reference:16]

ANY-OUT™ Mode: User-programmable output voltage via PCB layout, up to 20.5 V. No external feedback resistors or feed-forward capacitors required.[reference:17]
Adjustable Mode: Output voltage up to 34 V using external feedback resistors (TPS7A4701 only).[reference:18]
If enable is not required, tie EN to IN for normal operation.[reference:19]

PCB and Power-Supply Guidance

LDO regulator performance depends on layout, bypassing, and thermal management:[reference:20]

Place a ≥1 µF input capacitor (10 µF recommended) from IN to GND as close to the device as possible.[reference:21]
Place a ≥10 µF output capacitor (47 µF recommended) from OUT to GND as close to the device as possible.[reference:22]
Connect a ≥10 nF capacitor (1 µF recommended) from NR to GND to minimize noise.[reference:23]
Connect the thermal pad to a large-area ground plane.[reference:24]
For post dc-dc converter regulation, the high PSRR (82 dB at 100 Hz, ≥55 dB from 10 Hz–10 MHz) effectively filters switching noise.[reference:25]
Verify the recommended PCB footprint from the official datasheet before production.

20-LEAD VQFN (RGW)

Pin Configuration Reference for TPS7A4701RGWR

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.

1 OUT Regulated Output Voltage

2 NC No Connect - Not Internally Connected

3 SENSE/FB Control-Loop Error Amplifier Input - SENSE (ANY-OUT) or FB (Adjustable)

4 6P4V2 ANY-OUT Voltage Programming - Adds 6.4V to Output (Leave Open if Not Used)

5 6P4V1 ANY-OUT Voltage Programming - Adds 6.4V to Output (Leave Open if Not Used)

6 3P2V ANY-OUT Voltage Programming - Adds 3.2V to Output (Leave Open if Not Used)

7 GND Ground

8 1P6V ANY-OUT Voltage Programming - Adds 1.6V to Output (Leave Open if Not Used)

9 0P8V ANY-OUT Voltage Programming - Adds 0.8V to Output (Leave Open if Not Used)

10 0P4V ANY-OUT Voltage Programming - Adds 0.4V to Output (Leave Open if Not Used)

11 0P2V ANY-OUT Voltage Programming - Adds 0.2V to Output (Leave Open if Not Used)

12 0P1V ANY-OUT Voltage Programming - Adds 0.1V to Output (Leave Open if Not Used)

13 EN Enable Input (Active HIGH) - CMOS Logic Compatible

14 NR Noise Reduction - Connect Capacitor to GND to Minimize Noise

15 IN Input Voltage - 3 V to 36 V Supply

16 IN Input Voltage - 3 V to 36 V Supply

17 NC No Connect - Not Internally Connected

18 NC No Connect - Not Internally Connected

19 NC No Connect - Not Internally Connected

20 OUT Regulated Output Voltage

APPLICATION AREAS

Typical Applications for TPS7A4701RGWR

RF & Wireless Communications

Voltage-Controlled Oscillators (VCO), frequency synthesizers, Rx, Tx, and PA circuitry.[reference:26]

High-Precision Analog Circuitry

Supply rails for operational amplifiers, DACs, ADCs, and other high-performance analog circuits.[reference:27]

Post DC-DC Converter Regulation

Filtering output voltage ripple from dc-dc switching converters with ≥55 dB PSRR from 10 Hz to 10 MHz.[reference:28]

Test & Measurement

Precision measurement circuits, instrumentation, and data acquisition systems.[reference:29]

Medical Equipment

Critical medical instrumentation requiring ultra-low-noise power supplies.[reference:30][reference:31]

Base Stations & Telecom Infrastructure

+12-V and +24-V industrial buses and telecom infrastructure applications.[reference:32]

REPLACEMENT GUIDANCE

Selecting an Alternative for TPS7A4701RGWR

A replacement for the TPS7A4701RGWR 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–36 V)

Output voltage range (1.4 V–34 V)

Output current capability (1 A)

Output noise (4 µVRMS)

PSRR (82 dB @ 100 Hz, ≥55 dB 10 Hz–10 MHz)

Package (20-lead VQFN, 5mm × 5mm)

Operating temperature range (–40°C to +125°C)

ANY-OUT™ vs adjustable output configuration

Family alternatives: TPS7A4701RGWT (small tape and reel, 250 per reel, same electrical specs), TPS7A4701QRGWRQ1 (automotive AEC-Q100, –40°C to 125°C), TPS7A4701MRGWREP (Enhanced Product, –55°C to 125°C), TPS7A4700RGWR (ANY-OUT only, up to 20.5V). For lower current requirements, consider the TPS7A47 family variants. Select based on temperature range, qualification (automotive, EP), packaging, and output voltage configuration needs.

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MANUFACTURER INFORMATION

Texas Instruments

The TPS7A4701RGWR belongs to the TPS7A47 family of ultra-low-noise LDO voltage regulators from Texas Instruments. The family is designed with bipolar technology for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance.[reference:33]

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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: TPS7A4701RGWR

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

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 ~ 125°C

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 20-VQFN (5x5)

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TPS7A4701RGWR Procurement and Technical Support

TPS7A4701RGWR is manufactured by Texas Instruments. This page provides purchasing information including manufacturer, category, package, datasheet, stock reference, price reference and product specifications.

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Part Number: TPS7A4701RGWR

Manufacturer: Texas Instruments

Package: 20-VQFN Exposed Pad

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

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