- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:线性和低压降 (LDO) 稳压器
- 功能描述:具有使能功能的 150mA、36V、低噪声、高 PSRR、可调节低压降稳压器
- 点击这里打开及下载TPS7A49的技术文档资料
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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.
- 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? and3-mm × 3-mm VSON
- Operating Temperature Range:–40°C to 125°C
- Output options
- Adjustable Output
- Iout (Max) (A)
- 0.15
- Vin (Max) (V)
- 36
- Vin (Min) (V)
- 3
- Vout (Max) (V)
- 33
- Vout (Min) (V)
- 1.2
- Noise (uVrms)
- 15
- Iq (Typ) (mA)
- 0.06
- Thermal resistance θJA (°C/W)
- 48
- Rating
- Catalog
- Load capacitance (Min) (μF)
- 2.2
- Regulated outputs (#)
- 1
- Features
- Enable, Soft start
- Accuracy (%)
- 2.5
- PSRR @ 100 KHz (dB)
- 54
- Dropout voltage (Vdo) (Typ) (mV)
- 260
- Operating temperature range (C)
- -40 to 125
TPS7A49的完整型号有:TPS7A4901DGNR、TPS7A4901DGNT、TPS7A4901DRBR、TPS7A4901DRBT,以下是这些产品的关键参数及官网采购报价:
TPS7A4901DGNR,工作温度:-40 to 125,封装:HVSSOP (DGN)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAUAG,TI官网TPS7A4901DGNR的批量USD价格:1.065(1000+)
TPS7A4901DGNT,工作温度:-40 to 125,封装:HVSSOP (DGN)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAUAG,TI官网TPS7A4901DGNT的批量USD价格:1.278(1000+)
TPS7A4901DRBR,工作温度:-40 to 125,封装:SON (DRB)-8,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TPS7A4901DRBR的批量USD价格:1.065(1000+)
TPS7A4901DRBT,工作温度:-40 to 125,封装:SON (DRB)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TPS7A4901DRBT的批量USD价格:1.278(1000+)
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