SBVS125D August 2010 – June 2015 TPS7A30
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
- 9.2 Typical Application
- 9.3 Do's and Don’ts
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
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订购信息
1 Features
- Input Voltage Range: –3 V to –35 V
-
Noise:
- 14 μVRMS (20 Hz to 20 kHz)
- 15.1 μVRMS (10 Hz to 100 kHz)
- Power-Supply Ripple Rejection:
- 72 dB (120 Hz)
- ≥ 55 dB (10 Hz to 700 kHz)
- Adjustable Output: –1.18 V to –33 V
- Maximum Output Current: 200 mA
- Dropout Voltage: 216 mV at 100 mA
- Stable with Ceramic Capacitors ≥ 2.2 μF
- CMOS Logic-Level-Compatible Enable Pin
- Built-In, 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 Operational Amplifiers, 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
- –12-V and –24-V Industrial Buses
3 Description
The TPS7A30 series of devices are negative, high-voltage (–35 V), ultralow-noise (15.1 μVRMS, 72-dB PSRR) linear regulators that can source a maximum load of 200 mA.
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 include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.
The TPS7A30 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 TPS7A30 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 that require positive and negative high-performance rails, consider TI’s TPS7A49 family of positive high-voltage, ultralow-noise linear regulators.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS7A30 | HVSSOP (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.
Post DC-DC Converter Regulation for High-Performance Analog Circuitry
