Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)
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Linear- und Low-Dropout-Regler (LDO)

TPS7A3001-EP

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Verbessertes Produkt – extrem rauscharmer 200-mA-Low-Dropout-Regler mit hohem PSRR für negative E

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Datenblatt

TPS7A3001-EP

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Output options Adjustable Output Iout (max) (A) 0.2 Vin (max) (V) -3 Vin (min) (V) -36 Vout (max) (V) -1.2 Vout (min) (V) -33 Fixed output options (V) 0 Noise (µVrms) 15 Iq (typ) (mA) 0.05 Thermal resistance θJA (°C/W) 69.3 Rating HiRel Enhanced Product Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2.5 PSRR at 100 KHz (dB) 55 Dropout voltage (Vdo) (typ) (mV) 216 Operating temperature range (°C) -55 to 125
Output options Adjustable Output Iout (max) (A) 0.2 Vin (max) (V) -3 Vin (min) (V) -36 Vout (max) (V) -1.2 Vout (min) (V) -33 Fixed output options (V) 0 Noise (µVrms) 15 Iq (typ) (mA) 0.05 Thermal resistance θJA (°C/W) 69.3 Rating HiRel Enhanced Product Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2.5 PSRR at 100 KHz (dB) 55 Dropout voltage (Vdo) (typ) (mV) 216 Operating temperature range (°C) -55 to 125
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • Input Voltage Range: –3V to –36V
  • Noise:
    • 14µVRMS (20Hz to 20kHz)
    • 15.1µVRMS (10Hz to 100kHz)
  • Power-Supply Ripple Rejection:
    • 72dB (120Hz)
    • ≥ 55dB (10Hz to 700kHz)
  • Adjustable Output: –1.18V to –35V
  • Maximum Output Current: 200mA
  • Dropout Voltage: 216mV at 100mA
  • Stable with Ceramic Capacitors ≥ 2.2µF
  • CMOS Logic-Level-Compatible Enable Pin
  • Built-In, Fixed, Current-Limit and Thermal Shutdown Protection
  • Available in High Thermal Performance MSOP-8 PowerPAD Package
  • Input Voltage Range: –3V to –36V
  • Noise:
    • 14µVRMS (20Hz to 20kHz)
    • 15.1µVRMS (10Hz to 100kHz)
  • Power-Supply Ripple Rejection:
    • 72dB (120Hz)
    • ≥ 55dB (10Hz to 700kHz)
  • Adjustable Output: –1.18V to –35V
  • Maximum Output Current: 200mA
  • Dropout Voltage: 216mV at 100mA
  • Stable with Ceramic Capacitors ≥ 2.2µF
  • CMOS Logic-Level-Compatible Enable Pin
  • Built-In, Fixed, Current-Limit and Thermal Shutdown Protection
  • Available in High Thermal Performance MSOP-8 PowerPAD Package

The TPS7A3001 is a negative, high-voltage (–36V), ultralow-noise (15.1µVRMS, 72dB PSRR) linear regulator capable of sourcing a maximum load of 200mA.

These linear regulators include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function that allows for customized power-management schemes. Other features available include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.

The TPS7A3001 is designed using bipolar technology, and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes it an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry.

In addition, the TPS7A3001 of linear regulators is suitable for post dc/dc converter regulation. By filtering out the output voltage ripple inherent to dc/dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications.

For applications where positive and negative high-performance rails are required, consider TI’s TPS7A49xx family of positive high-voltage, ultralow-noise linear regulators.

The TPS7A3001 is a negative, high-voltage (–36V), ultralow-noise (15.1µVRMS, 72dB PSRR) linear regulator capable of sourcing a maximum load of 200mA.

These linear regulators include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function that allows for customized power-management schemes. Other features available include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.

The TPS7A3001 is designed using bipolar technology, and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes it an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry.

In addition, the TPS7A3001 of linear regulators is suitable for post dc/dc converter regulation. By filtering out the output voltage ripple inherent to dc/dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications.

For applications where positive and negative high-performance rails are required, consider TI’s TPS7A49xx family of positive high-voltage, ultralow-noise linear regulators.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet Ultra Low Noise Negative Linear Regulator datasheet 20 Okt 2011
* VID TPS7A3001-EP VID V6211619 21 Jun 2016
* Radiation & reliability report TPS7A3001MDGNTEP Reliability Report 06 Feb 2015
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 14 Dez 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 13 Dez 2022
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019

Design und Entwicklung

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Evaluierungsplatine

TPS7A30-49EVM-567 — TPS7A3001 und TPS7A4901 Low-Dropout (LDO)-Linearregler-Evaluierungsmodul

The TPS7A30-49EVM-567 is a fully assembled and tested circuit for evaluating the TPS7A3001 and TPS7A4901 low-dropout linear regulators in the DGN (3mm x 5mm MSOP-8) package. The TPS7A30-49EVM-567 includes two independent circuits with outputs of –15 V and +15 V (respectively). These (...)
Benutzerhandbuch: PDF
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Simulationsmodell

TPS7A3001 PSpice Transient Model (Rev. A)

SBVM023A.ZIP (50 KB) - PSpice Model
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Simulationsmodell

TPS7A3001 TINA-TI Transient Reference Design (Rev. A)

SBVM215A.TSC (107 KB) - TINA-TI Reference Design
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Simulationsmodell

TPS7A3001 TINA-TI Transient Spice Model (Rev. A)

SBVM214A.ZIP (13 KB) - TINA-TI Spice Model
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Simulationsmodell

TPS7A3001 Unencrypted PSpice Transient Model

SBVM664.ZIP (2 KB) - PSpice Model
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The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the (...)
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Schaltplan: PDF
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The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over (...)
Design guide: PDF
Schaltplan: PDF
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This reference design is designed for high performance data acquisition(DAQ) systems to improve the dynamic range of 20 bit differential input ADCs. Many DAQ systems require the measurement capability at a wide FSR (Full Scale Range) in order to obtain sufficient signal dynamic range. Many earlier (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

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Design guide: PDF
Schaltplan: PDF
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Benutzerhandbuch: PDF
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Referenzdesigns

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Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-01052 — ADC-Treiber-Referenzdesign zur Verbesserung des Full Scale THD bei negativer Versorgung

The TIDA-01052 reference design aims to highlight system performance increases seen using a negative voltage rail on the analog front end driver amplifiers rather than ground. This concept is relative to all analog front ends, however this design is aimed specifically at automatic test equipment.
Design guide: PDF
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