TPS7A49

現行

具啟用功能的 150-mA、36-V、低雜訊、高 PSRR 可調式低壓降電壓穩壓器

立即訂購

產品規格表

document-pdfAcrobat TPS7A49 36-V, 150-mA, Ultralow-Noise, Positive Linear Regulator datasheet (Rev. E) (英文) PDF | HTML

TPS7A49

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Vin (max) (V)

36

Vin (min) (V)

3

Iout (max) (A)

0.15

Output options

Adjustable Output

Vout (max) (V)

33

Vout (min) (V)

1.2

Noise (µVrms)

15

PSRR at 100 KHz (dB)

54

Iq (typ) (mA)

0.06

Features

Enable, Soft start

Thermal resistance θJA (°C/W)

48

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

2.5

Dropout voltage (Vdo) (typ) (mV)

260

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Vin (max) (V)

36

Vin (min) (V)

3

Iout (max) (A)

0.15

Output options

Adjustable Output

Vout (max) (V)

33

Vout (min) (V)

1.2

Noise (µVrms)

15

PSRR at 100 KHz (dB)

54

Iq (typ) (mA)

0.06

Features

Enable, Soft start

Thermal resistance θJA (°C/W)

48

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

2.5

Dropout voltage (Vdo) (typ) (mV)

260

Operating temperature range (°C)

-40 to 125

HVSSOP (DGN)

8

14.7 mm² 3 x 4.9

VSON (DRB)

8

9 mm² 3 x 3

Input Voltage Range: 3 V to 36 V
Noise:
- 12.7 µV_RMS (20 Hz to 20 kHz)
- 15.4 µV_RMS (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

Input Voltage Range: 3 V to 36 V
Noise:
- 12.7 µV_RMS (20 Hz to 20 kHz)
- 15.4 µV_RMS (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

The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 µV_RMS, 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.

The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 µV_RMS, 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.

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	類型	標題		日期
*	Data sheet	TPS7A49 36-V, 150-mA, Ultralow-Noise, Positive Linear Regulator datasheet (Rev. E)	PDF \| HTML	2015年 5月 26日
	Application note	An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A)	PDF \| HTML	2025年 9月 23日
	White paper	Demystifying LDO Turn-On (startup) Time	PDF \| HTML	2024年 10月 5日
	White paper	Parallel LDO Architecture Design Using Ballast Resistors	PDF \| HTML	2022年 12月 14日
	White paper	Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast	PDF \| HTML	2022年 12月 13日
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)		2019年 6月 27日
	Application note	Accurate Thermal Calculations on the Back of a Napkin		2019年 6月 3日
	E-book	LDO Basics (Rev. A)		2019年 4月 8日
	Selection guide	Power Management Guide 2018 (Rev. R)		2018年 6月 25日
	Selection guide	Low Dropout Regulators Quick Reference Guide (Rev. P)		2018年 3月 21日
	Technical article	LDO basics: dropout	PDF \| HTML	2017年 3月 16日
	EVM User's guide	TPS7A30-49EVM-567 User's Guide		2010年 8月 27日

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