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Enhanced Product Negative Vin, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout Linear Regulator

TPS7A3001-EP

ACTIVE

Product details

Parameters

Output options Adjustable Output, Negative 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 (uVrms) 15 Iq (Typ) (mA) 0.05 Thermal resistance θJA (°C/W) 69.3 Load capacitance (Min) (µF) 2.2 Rating HiRel Enhanced Product Regulated outputs (#) 1 Features Enable, Soft Start Accuracy (%) 2.5 PSRR @ 100 KHz (dB) 55 Dropout voltage (Vdo) (Typ) (mV) 216 Operating temperature range (C) -55 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

HVSSOP (DGN) 8 15 mm² 3 x 4.9 open-in-new Find other Linear regulators (LDO)

Features

  • 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
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Description

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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Technical documentation

= Featured
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet Ultra Low Noise Negative Linear Regulator datasheet Oct. 20, 2011
Application notes A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
VID TPS7A3001-EP VID V6211619 Jun. 21, 2016
Radiation & Reliability reports TPS7A3001MDGNTEP Reliability Report Feb. 06, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$20.00
Description
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 (...)
Features
  • Wide input voltage range: TPS7A4901 (3 V to 36 V), TPS7A3001 (–3 V to –36 V)
  • 1.5% accuracy over line, load and temperature
  • Stable with a ceramic output capacitor greater than 2-µF
  • Low noise and high PSRR
  • Programmable soft start

Design tools & simulation

SIMULATION MODELS Download
SBVM023A.ZIP (50 KB) - PSpice Model
SIMULATION MODELS Download
SBVM214A.ZIP (13 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBVM215A.TSC (107 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBVM664.ZIP (2 KB) - PSpice Model

Reference designs

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TIDA-01055 — 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 (...)
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20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI
TIDA-01056 — This reference design for high performance data acquisition (DAQ) systems optimizes power stage in order to reduce power consumption and minimize the effect of EMI from switching regulator by using LMS3635-Q1 buck converter.  This reference designs yields 7.2% efficiency improvement at most (...)
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Reference Design Optimizing FPGA Utilization and Data Throughput for Automatic Test Equipment
TIDA-01051 — The TIDA-01051 reference design is used to demonstrate optimized channel density, integration, power consumption, clock distribution and signal chain performance of very high channel count data acquisition (DAQ) systems such as those used in automatic test equipment (ATE). Using serializers, such as (...)
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Extended Current and Voltage Measurement Using Shunts for Protection Relays Reference Design
TIDA-00738 The TIDA-00738 TI design demonstrates a unique approach for extending the current measurement range using a single shunt and voltage measurement using AMC1304Mx5 Isolated Delta-Sigma (ΔΣ) modulator. With careful selection of a low value shunt resistor that minimizes power dissipation, a (...)
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Optimized Analog Front End DAQ System Reference Design for 18 bit SAR Data Converters
TIDA-01050 — The TIDA-01050 reference design aims to improve the integration, power consumption, performance, and clocking issues typically associated with automatic test equipment. This design is applicable to any ATE system but most applicable to systems requiring a large number of input channels.
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REFERENCE DESIGNS Download
ADC Driver Reference Design Improving Full Scale THD Using Negative Supply
TIDA-01052 — 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.
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CAD/CAE symbols

Package Pins Download
HVSSOP (DGN) 8 View options

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