TPS7A30

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200-mA, low-noise, high-PSRR, negative, adjustable low-dropout voltage regulator with enable

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Data sheet

document-pdfAcrobat TPS7A30 –35-V, –200-mA, Ultralow-Noise, Negative Linear Regulator datasheet (Rev. D) PDF | HTML

TPS7A30

ACTIVE

Data sheet

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Product details

Output options

Adjustable Output, Negative Output

Iout (max) (A)

0.2

Vin (max) (V)

-3

Vin (min) (V)

-36

Vout (max) (V)

-1.2

Vout (min) (V)

-33

Noise (µVrms)

15

Iq (typ) (mA)

0.05

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 at 100 KHz (dB)

55

Dropout voltage (Vdo) (typ) (mV)

216

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output, Negative Output

Iout (max) (A)

0.2

Vin (max) (V)

-3

Vin (min) (V)

-36

Vout (max) (V)

-1.2

Vout (min) (V)

-33

Noise (µVrms)

15

Iq (typ) (mA)

0.05

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 at 100 KHz (dB)

55

Dropout voltage (Vdo) (typ) (mV)

216

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 –35 V
Noise:
- 14 µV_RMS (20 Hz to 20 kHz)
- 15.1 µV_RMS (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

Input Voltage Range: –3 V to –35 V
Noise:
- 14 µV_RMS (20 Hz to 20 kHz)
- 15.1 µV_RMS (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

The TPS7A30 series of devices are negative, high-voltage (–35 V), ultralow-noise (15.1 µV_RMS, 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.

The TPS7A30 series of devices are negative, high-voltage (–35 V), ultralow-noise (15.1 µV_RMS, 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.

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Technical documentation

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	Type	Title		Date
*	Data sheet	TPS7A30 –35-V, –200-mA, Ultralow-Noise, Negative Linear Regulator datasheet (Rev. D)	PDF \| HTML	09 Jun 2015
	White paper	Parallel LDO Architecture Design Using Ballast Resistors	PDF \| HTML	14 Dec 2022
	White paper	Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast	PDF \| HTML	13 Dec 2022
	Application note	L1 and L2 EV Charger Electric Vehicle Service Equipment Design Considerations (Rev. B)		09 Jun 2021
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)		27 Jun 2019
	Selection guide	Power Management Guide 2018 (Rev. R)		25 Jun 2018
	Selection guide	Low Dropout Regulators Quick Reference Guide (Rev. P)		21 Mar 2018
	Technical article	Powering up the performance of sensitive test and measurement systems		17 Oct 2017
	Technical article	Input Isolation for 3-wire Analog Outputs		15 Jun 2015
	Technical article	Knock out the noise! Create a cleaner PLC design		26 Feb 2015
	Technical article	Powering Bipolar Rails with Wide-VIN Fly-Buck Converter		09 Dec 2014
	EVM User's guide	TPS7A30-49EVM-567 User's Guide		27 Aug 2010

Design & development

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