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TPS7A52-Q1

ACTIVE

Automotive 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator

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Data sheet

TPS7A52-Q1

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 2 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.2 Vout (min) (V) 0.8 Noise (µVrms) 4.4 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Foldback overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Accuracy (%) 1 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 95 Operating temperature range (°C) -40 to 150
Output options Adjustable Output Iout (max) (A) 2 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.2 Vout (min) (V) 0.8 Noise (µVrms) 4.4 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Foldback overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Accuracy (%) 1 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 95 Operating temperature range (°C) -40 to 150
VQFN (RGR) 20 12.25 mm² 3.5 x 3.5 VQFNP (RTK) 20 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications:
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.2 V
  • Low Dropout: 115 mV (max) at 2 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications:
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.2 V
  • Low Dropout: 115 mV (max) at 2 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound

The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A52-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A52-Q1 provides optimal system performance.

The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.

 

The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A52-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A52-Q1 provides optimal system performance.

The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.

 
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Technical documentation

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Type Title Date
* Data sheet TPS7A52-Q1 2-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. B) PDF | HTML 26 Jun 2018
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 14 Dec 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 13 Dec 2022
Functional safety information TPS7A52-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 23 Sep 2022
EVM User's guide TPS7A52EVM-002 Evaluation Module User's Guide 01 Mar 2017
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 27 Feb 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS7A52EVM-002 — TPS7A52-Q1 2-A low-VIN (1.1-V) low-noise high-accuracy ultra-LDO voltage regulator evaluation module

The TPS7A52EVM-002 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A52-Q1 device, which is an automotive-grade 2-A low-dropout (LDO) voltage regulator.

The EVM circuit board is configured to be a reference design for engineering (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS7A5201 PSpice Transient Model

SBVM755.ZIP (35 KB) - PSpice Model
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Simulation model

TPS7A5201 Unencrypted PSpice Transient Model

SBVM756.ZIP (2 KB) - PSpice Model
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Calculation tool

PARALLEL-LDO-CALC — Parallel low-dropout (LDO) calculator

The parallel low-dropout (LDO) calculator is a Microsoft® Excel®-based tool that provides worst-case analysis for parallel LDO regulators using ballast resistors. The tool helps the user identify the minimum number of parallel LDO regulators required and optimum ballast resistance for a (...)

Supported products & hardware

Supported products & hardware

Products
Linear & low-dropout (LDO) regulators
TPS7A33 — 1-A, high-PSRR, negative, adjustable low-dropout voltage regulator with enable TPS7A47 — 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable TPS7A47-Q1 — Automotive 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable TPS7A4701-EP — Enhanced product, 36-V, 1-A, 4-μVRMS, RF LDO voltage regular TPS7A52 — 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A52-Q1 — Automotive 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A53 — 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator TPS7A53-Q1 — Automotive, 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator TPS7A53A-Q1 — Automotive, 3-A, low-VIN 5.6-µVRMS low-noise high-accuracy ultra-low dropout voltage regulator TPS7A53B — 3-A, 1.1-V, low-VIN, low-noise high-accuracy ultra-low-dropout voltage regulator with 0.5-V low VREF TPS7A54 — 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A54-Q1 — Automotive 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A57 — 5-A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator TPS7A83A — 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A84A — 3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A85A — 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A94 — 1-A, ultra-low noise, ultra-high PSRR, RF voltage regulator TPS7B7702-Q1 — Automotive 300-mA, off-battery (40-V), dual-channel adjustable antenna low-dropout voltage regulator TPS7A8300 — 2-A, low-VIN, low-2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good wi TPS7A84 — 3-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A85 — 4-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A96 — 2-A, ultra-low noise ultra-high PSRR RF voltage regulator TPS7A4501-SP — Radiation-hardened, QMLV, 1.5-V to 20-V input 1.5-A low-dropout (LDO) regulator TPS7H1111-SP — Radiation-hardened, QMLV and QMLP, 1.5A ultra-low-noise high-PSRR low-dropout (LDO) regulator TPS7H1111-SEP — Radiation-tolerant, 1.5A, ultra-low-noise ultra-high-PSRR RF LDO regulator
Hardware development
Evaluation board
TPS7A57EVM-081 — TPS7A57 evaluation module for 5-A low-noise high-accuracy low-dropout (LDO) voltage regulator
Download
Reference designs

TIDA-020011 — Automotive mmWave radar gesture control reference design

This reference design utilizes mmWave Radar and a full automotive power design to provide a sleek, simple solution to capture hand gestures and improve the experience of the driver. The evolution of the automobile has led to the desire for simpler and easier interaction with the ever increasing (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01570 — Automotive 77-GHz radar module reference design with object data output

TIDA-01570 is a reference design for a 76- to 81-GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar analog front end (AFE), processors and CAN-FD transceiver. After processing, object data is provided over the included N-FD (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-020004 — Automotive RFCMOS 77GHz radar module reference design with object data output over dual CAN FD

This reference design is a solution for a 76 to 81 GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar AFE, processors and CAN FD transceiver. All of these functions are included in a small form factor PCB suitable for front (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-020001 — Automotive 144-Zone Local Dimming Backlight Reference Design

This local dimming backlight reference design conserves power, extends the life of liquid-crystal displays (LCDs), and enhances automotive display quality through high dynamic range (HDR) or localized dimming technology. Seven multi-channel constant-current LED drivers allow for 144-zone localized (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGR) 20 Ultra Librarian
VQFNP (RTK) 20 Ultra Librarian
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