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TPS7A4701QRGWRQ1

IC REG LINEAR POS ADJ 1A 20-VQFN

Part Number: TPS7A4701QRGWRQ1

Manufacturer: Texas Instruments

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

Package: 20-VQFN Exposed Pad

Datasheet:: TPS7A4701QRGWRQ1.pdf

Description: IC REG LINEAR POS ADJ 1A 20-VQFN

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

TPS7A4701QRGWRQ1 Automotive-Grade 1A, 36V, Ultra-Low-Noise, High-PSRR LDO Regulator

A comprehensive technical overview of the TPS7A4701QRGWRQ1, an AEC-Q100 qualified adjustable linear voltage regulator from Texas Instruments featuring 1A output current, 3V to 35V input range, 4.2µVRMS ultra-low output noise, and 82dB PSRR at 100Hz. Covers device function, core features, electrical specifications, 20-lead VQFN package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 20-VQFN (5mm × 5mm) 3V to 35V

Device Classification Automotive LDO Voltage Regulator

Part Number: TPS7A4701QRGWRQ1

Mounting Type: Surface Mount

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

PRODUCT OVERVIEW

What Is the TPS7A4701QRGWRQ1?

TPS7A4701QRGWRQ1 is an automotive-grade, ultra-low-noise (4.2µVRMS) low-dropout linear regulator (LDO) from Texas Instruments, capable of sourcing a 1A load current. Fabricated using bipolar technology, the device is primarily intended for high-precision instrumentation applications where clean voltage rails are critical to maximizing system performance.

The TPS7A4701QRGWRQ1 operates with an input voltage range of 3V to 35V and features an adjustable output voltage from 1.4V to 34V using external feedback resistors, or up to 20.5V via the ANY-OUT™ user-programmable PCB layout configuration. The device delivers high power-supply rejection ratio (PSRR) of 82dB at 100Hz and ≥55dB from 10Hz to 10MHz, making it well-suited for noise-sensitive loads such as PLLs, oscillators, and high-speed ADCs.

The device integrates fixed current limit and thermal shutdown protection. The TPS7A4701QRGWRQ1 is AEC-Q100 qualified for automotive applications, with an ambient operating temperature range of –40°C to 125°C and a junction temperature range of –40°C to +145°C. The device is offered in a 20-lead VQFN (RGW) package with a 5.00mm × 5.00mm footprint.

Ultra-Low-Noise LDO 4.2µVRMS output noise (10Hz–100kHz) for noise-sensitive loads.

Wide VIN & Adjustable VOUT 3V to 35V input, 1.4V to 34V adjustable output.

AEC-Q100 Qualified Automotive Grade 1: –40°C to 125°C ambient operating temperature.

DEVICE HIGHLIGHTS

Key Features and Benefits of TPS7A4701QRGWRQ1

Wide Input Voltage Range

Operates from 3V to 35V input voltage, accommodating a broad spectrum of automotive and industrial applications.

1A Output Current Capability

Delivers up to 1A of output current with an adjustable output voltage from 1.4V to 34V.

Ultra-Low Noise (4.2µVRMS)

4.2µVRMS output noise (10Hz–100kHz) makes this LDO ideal for powering noise-sensitive loads such as PLLs, oscillators, and high-speed ADCs.

High PSRR

82dB PSRR at 100Hz and ≥55dB from 10Hz to 10MHz deliver excellent ripple rejection across a wide frequency range.

AEC-Q100 Qualified

Automotive Grade 1 qualification with –40°C to 125°C ambient operating temperature and –40°C to 145°C junction temperature range.

20-Lead VQFN Package

Available in a 20-lead VQFN (RGW) package with a 5.00mm × 5.00mm footprint, ideal for space-constrained automotive designs.

REFERENCE DATA

Technical Specifications for TPS7A4701QRGWRQ1

Part Number	TPS7A4701QRGWRQ1	Manufacturer	Texas Instruments
Device Type	Automotive LDO Voltage Regulator	Output Current	1A
Input Voltage Range	3V to 35V	Output Voltage Range (Adjustable)	1.4V to 34V
Output Voltage Range (ANY-OUT™)	1.4V to 20.5V	Output Noise	4.2µVRMS (10Hz–100kHz)
PSRR (100Hz)	82dB	PSRR (10Hz–10MHz)	≥55dB
Dropout Voltage (1A)	307mV (Typical)	Dropout Voltage (0.5A)	216mV (Typical)
Package / Case	VQFN-20	Supplier Device Package	20-VQFN (5mm × 5mm)
Package Body Size	5.00mm × 5.00mm	Package Type	RGW
Mounting Type	Surface Mount	Pin Count	20
Ambient Temperature Range	-40°C to +125°C	Junction Temperature Range	-40°C to +145°C
Qualification	AEC-Q100 Grade 1	Thermal Resistance θJA	31.1°C/W
Moisture Sensitivity Level	Level-2-260C-1 YEAR	RoHS	Yes
REACH	Yes	Lead Coating / Solder Ball Material	NiPdAu
Device Marking	7A4701Q	Packaging	Tape & Reel (3,000 per Reel)
Product Status	Active	Protection Features	Current Limit, Thermal Shutdown

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. AEC-Q100 Grade 1 specifications apply over the ambient temperature range of –40°C to 125°C.

DESIGN REFERENCE

Circuit Considerations for TPS7A4701QRGWRQ1

Output Voltage Programming

The TPS7A4701QRGWRQ1 output voltage can be configured in two modes:

Adjustable Mode: Uses external feedback resistors to set output voltage from 1.4V to 34V
ANY-OUT™ Mode: User-programmable via PCB layout configuration, output up to 20.5V
Enable Pin: CMOS-logic-compatible enable input; if enable is not required, tie EN to IN
Output Current: Capable of sourcing up to 1A load current

PCB and Power-Supply Guidance

LDO regulator performance depends on layout and component selection:

Input Capacitor: Place a ceramic capacitor close to the IN pin to ensure stable operation
Output Capacitor: Use a ceramic capacitor as recommended in the datasheet to maintain stability
Thermal Management: θJA = 31.1°C/W for the VQFN package; provide adequate PCB copper area for heat dissipation
Exposed Pad: The thermal pad on the VQFN package must be soldered to the PCB for optimal thermal and electrical performance
PCB Layout: Keep feedback resistor traces short and routed close to the device for accurate output voltage setting
Verify the recommended PCB footprint from the official datasheet prior to production

20-LEAD VQFN (5mm × 5mm)

Pin Configuration Reference for TPS7A4701QRGWRQ1

7A4701Q

VQFN TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The VQFN package has 20 pins with a 5.00mm × 5.00mm body size. Device marking for the TPS7A4701QRGWRQ1 is "7A4701Q". The exposed thermal pad must be soldered to the PCB to achieve optimal thermal and electrical performance.

1 NC No Connect - Not internally connected

2 NC No Connect - Not internally connected

3 NC No Connect - Not internally connected

4 OUT Regulated Output Voltage - Connect to load

5 OUT Regulated Output Voltage - Connect to load

6 OUT Regulated Output Voltage - Connect to load

7 OUT Regulated Output Voltage - Connect to load

8 NC No Connect - Not internally connected

9 FB Feedback - Connect to external resistor divider for adjustable output voltage

10 NC No Connect - Not internally connected

11 NC No Connect - Not internally connected

12 NC No Connect - Not internally connected

13 IN Input Voltage - 3V to 35V

14 IN Input Voltage - 3V to 35V

15 IN Input Voltage - 3V to 35V

16 IN Input Voltage - 3V to 35V

17 EN Enable - CMOS-logic-compatible enable input; tie to IN if unused

18 NC No Connect - Not internally connected

19 NC No Connect - Not internally connected

20 NC No Connect - Not internally connected

APPLICATION AREAS

Typical Applications for TPS7A4701QRGWRQ1

Automotive Infotainment & Clusters

AEC-Q100 qualified for automotive infotainment systems and instrument clusters requiring clean voltage rails.

VCO, Rx, Tx & PA Circuits

Well-suited for voltage-controlled oscillators, receivers, transmitters, and power amplifier circuits in automotive RF applications.

High-Precision Analog Circuits

Provides clean power rails for operational amplifiers, DACs, ADCs, and other high-precision analog circuits.

Post-DC/DC Converter Regulation

Filters output voltage ripple from DC/DC switching converters for sensitive instrumentation, audio, and RF applications.

PLLs & Oscillators

Ultra-low noise (4.2µVRMS) makes this LDO ideal for powering phase-locked loops and oscillators.

Industrial & Test Equipment

High PSRR and wide input voltage range suit industrial and test instrumentation applications.

REPLACEMENT GUIDANCE

Selecting an Alternative for TPS7A4701QRGWRQ1

A replacement for the TPS7A4701QRGWRQ1 should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Texas Instruments product pages and datasheets.

Output current (1A)

Input voltage range (3V–35V)

Ultra-low noise (4.2µVRMS)

Package (20-VQFN, 5mm × 5mm)

Temperature range (–40°C to 125°C ambient)

AEC-Q100 qualification

Adjustable output (1.4V–34V)

Protection features (current limit, thermal shutdown)

Family alternatives:

Part Number	Package	Packaging	Temperature Grade	Carrier Quantity
TPS7A4701QRGWRQ1	20-VQFN (5mm × 5mm)	Tape & Reel	Automotive (-40°C to 125°C)	3,000
TPS7A4701QRGWTQ1	20-VQFN (5mm × 5mm)	Tube	Automotive (-40°C to 125°C)	-
TPS7A4701RGWR	20-VQFN (5mm × 5mm)	Tape & Reel	Industrial (-40°C to 125°C)	3,000

All alternative part numbers listed above are documented in the official Texas Instruments product pages. The TPS7A4701QRGWRQ1 is the automotive-grade version in VQFN package with tape-and-reel packaging (3,000 units per reel). For tube packaging, consider TPS7A4701QRGWTQ1. For industrial-grade applications where AEC-Q100 qualification is not required, consider TPS7A4701RGWR. Select based on qualification, package, and packaging requirements.

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MANUFACTURER INFORMATION

Texas Instruments

The TPS7A4701 (TPS7A4701QRGWRQ1) belongs to the TPS7A47-Q1 family of automotive ultra-low-noise LDO voltage regulators from Texas Instruments. The device is a positive voltage (35V), ultra-low-noise (4.2µVRMS) low-dropout linear regulator capable of sourcing a 1A load current. The device is designed for high-precision instrumentation applications where clean voltage rails are critical to maximizing system performance.

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Haishengye Electronics provides electronic component stock supply, BOM sourcing, quotation support, and quality inspection services for TPS7A4701QRGWRQ1 and related devices.

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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: TPS7A4701QRGWRQ1

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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TPS7A4701QRGWRQ1 Procurement and Technical Support

TPS7A4701QRGWRQ1 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: TPS7A4701QRGWRQ1

Manufacturer: Texas Instruments

Package: 20-VQFN Exposed Pad

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

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