150-mA, 36-V, low-noise, high-PSRR, adjustable low-dropout voltage regulator with enable
Product details
Parameters
Package | Pins | Size
Features
- Input Voltage Range: 3 V to 36 V
- Noise:
- 12.7 µVRMS (20 Hz to 20 kHz)
- 15.4 µVRMS (10 Hz to 100 kHz)
- Power-Supply Ripple Rejection:
- 72 dB (120 Hz)
- ≥ 52 dB (10 Hz to 400 kHz)
- Adjustable Output: 1.194 V to 33 V
- Output Current: 150 mA
- Dropout Voltage: 260 mV at 100 mA
- Stable with Ceramic Capacitors ≥ 2.2 µF
- CMOS Logic-Level-Compatible Enable Pin
- Fixed Current-Limit and Thermal Shutdown Protection
- Packages: 8-Pin HVSSOP PowerPAD™ and
3-mm × 3-mm VSON - Operating Temperature Range:
–40°C to 125°C
Description
The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 µVRMS, 72-dB PSRR) linear regulators that can source a 150-mA load.
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 available features include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.
The TPS7A49 family 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 the device 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 TPS7A49 family 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 TPS7A30xx family of negative high-voltage, ultralow-noise linear regulators as well.
Similar but not functionally equivalent to the compared device:
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS7A49 36-V, 150-mA, Ultralow-Noise, Positive Linear Regulator datasheet (Rev. E) | May 26, 2015 |
| Application notes | A Topical Index of TI LDO Application Notes (Rev. F) | Jun. 27, 2019 | |
| Application notes | Accurate Thermal Calculations on the Back of a Napkin | Jun. 03, 2019 | |
| Technical articles | LDO basics: capacitor vs. capacitance | Aug. 01, 2018 | |
| Technical articles | LDO Basics: Preventing reverse current | Jul. 25, 2018 | |
| Selection guides | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
| Technical articles | LDO basics: introduction to quiescent current | Jun. 20, 2018 | |
| Selection guides | Low Dropout Regulators Quick Reference Guide (Rev. P) | Mar. 21, 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 | |
| User guides | TPS7A30-49EVM-567 User's Guide | Aug. 27, 2010 | |
| More literature | Industry's First –36-V LDO [WMV] | Aug. 12, 2010 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Compatible with TI Audio Plug-in Module Ecosystem
- Complete design for two-way, active crossover speakers
- Active crossover includes a high-pass filter, low-pass filter, baffle step and delay
- Input: Mono RCA jack
- Output: Analog, 2-channel, 2-Vrms differential
- Connect to TI Class-D Audio EVMs (Check (...)
Description
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
Description
Our TI-PMLK LDO experiment board is part of the TI Power Management Lab Kit (TI-PMLK) series. TI-PMLK series provides hands on learning to reinforce power supply knowledge. The modular format lets you customize the TI-PMLK series experience in a way that makes the most impact (...)
Features
- Two different IC sections to expand the learning experience
- Each section is configurable with jumpers for different exercises
- The LDO board is accompanied by a downloadable LDO experiments book
Design tools & simulation
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| HVSSOP (DGN) | 8 | View options |
| SON (DRB) | 8 | View options |
Ordering & quality
Support & training
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