SBVS121E August 2010 – May 2015 TPS7A49
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
-
9 Application and Implementation
- 9.1
Application Information
- 9.1.1 Adjustable Operation
- 9.1.2 Capacitor Recommendations
- 9.1.3 Input and Output Capacitor Requirements
- 9.1.4 Noise-Reduction and Feed-Forward Capacitor Requirements
- 9.1.5 Maximum AC Performance
- 9.1.6 Output Noise
- 9.1.7 Post DC-DC Converter Filtering
- 9.1.8 Power-Supply Rejection
- 9.1.9 Transient Response
- 9.1.10 Audio Applications
- 9.1.11 Power for Precision Analog
- 9.2 Typical Application
- 9.3 Do's and Don’ts
- 9.1
Application Information
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息
1 Features
- Input Voltage Range: 3 V to 36 V
- Noise:
- 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
2 Applications
- Supply Rails for Op Amps, DACs, ADCs, and Other High-Precision Analog Circuitry
- Audio
- Post DC-DC Converter Regulation and
Ripple Filtering - Test and Measurement
- Rx, Tx, and PA Circuitry
- Industrial Instrumentation
- Base Stations and Telecom Infrastructure
3 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.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS7A49 | HVSSOP PowerPAD (8) | 3.00 mm × 3.00 mm |
| VSON (8) | 3.00 mm × 3.00 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
