TPS7A89

AKTIV

Rauscharmer, hochgenauer, zweikanaliger einstellbarer Spannungsregler, extrem geringer Dropout, 2 A

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Datenblatt

document-pdfAcrobat TPS7A89 Small, Dual, 2-A, Low-Noise (3.8 μVRMS), LDO Voltage Regulator datasheet (Rev. A) (Englisch) PDF | HTML

TPS7A89

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Vin (max) (V)

6.5

Vin (min) (V)

1.4

Iout (max) (A)

2

Output options

Adjustable Output, Dual output

Vout (max) (V)

5.2

Vout (min) (V)

0.8

Noise (µVrms)

3.8

PSRR at 100 KHz (dB)

35

Iq (typ) (mA)

2.1

Features

Enable, Foldback Overcurrent protection, Power good, Soft start

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

2

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

260

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Vin (max) (V)

6.5

Vin (min) (V)

1.4

Iout (max) (A)

2

Output options

Adjustable Output, Dual output

Vout (max) (V)

5.2

Vout (min) (V)

0.8

Noise (µVrms)

3.8

PSRR at 100 KHz (dB)

35

Iq (typ) (mA)

2.1

Features

Enable, Foldback Overcurrent protection, Power good, Soft start

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

2

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

260

Operating temperature range (°C)

-40 to 125

WQFN (RTJ)

20

16 mm² 4 x 4

Two Independent LDO Channels
4-mm × 4-mm, 20-Pin WQFN Package
Low Output Noise: 3.8 µV_RMS (10 Hz to 100 kHz)
Low Dropout: 180 mV (typ) at 2 A
Wide Input Voltage Range: 1.4 V to 6.5 V
Wide Output Voltage Range: 0.8 V to 5.2 V
High Power-Supply Rejection Ratio (PSRR):
- 75 dB at DC
- 40 dB at 100 kHz
- 40 dB at 1 MHz
1.0% Accuracy Over Line, Load, and Temperature
Excellent Load Transient Response
Adjustable Start-Up In-Rush Control
Selectable Soft-Start Charging Current
Independent Open-Drain Power-Good (PGx) Outputs
Stable with a 10 µF or Larger Ceramic Output Capacitor

Two Independent LDO Channels
4-mm × 4-mm, 20-Pin WQFN Package
Low Output Noise: 3.8 µV_RMS (10 Hz to 100 kHz)
Low Dropout: 180 mV (typ) at 2 A
Wide Input Voltage Range: 1.4 V to 6.5 V
Wide Output Voltage Range: 0.8 V to 5.2 V
High Power-Supply Rejection Ratio (PSRR):
- 75 dB at DC
- 40 dB at 100 kHz
- 40 dB at 1 MHz
1.0% Accuracy Over Line, Load, and Temperature
Excellent Load Transient Response
Adjustable Start-Up In-Rush Control
Selectable Soft-Start Charging Current
Independent Open-Drain Power-Good (PGx) Outputs
Stable with a 10 µF or Larger Ceramic Output Capacitor

The TPS7A89 is a dual, low-noise (3.8 µV_RMS), low-dropout (LDO) voltage regulator capable of sourcing 2 A per channel with only 400 mV of maximum dropout.

The TPS7A89 provides the flexibility of two independent LDOs and approximately 60% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8 V to 5.2 V. The wide input-voltage range of the TPS7A89 supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A89 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), high-end processors, and field-programmable gate arrays (FPGAs)].

The TPS7A89 is designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 3.8-µV_RMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize the performance of clocking devices, ADCs, and DACs.

The TPS7A89 is a dual, low-noise (3.8 µV_RMS), low-dropout (LDO) voltage regulator capable of sourcing 2 A per channel with only 400 mV of maximum dropout.

The TPS7A89 provides the flexibility of two independent LDOs and approximately 60% smaller solution size than two single-channel LDOs. Each output is adjustable with external resistors from 0.8 V to 5.2 V. The wide input-voltage range of the TPS7A89 supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A89 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), high-end processors, and field-programmable gate arrays (FPGAs)].

The TPS7A89 is designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 3.8-µV_RMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize the performance of clocking devices, ADCs, and DACs.

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	Typ	Titel		Datum
*	Data sheet	TPS7A89 Small, Dual, 2-A, Low-Noise (3.8 μVRMS), LDO Voltage Regulator datasheet (Rev. A)	PDF \| HTML	15 Jul 2016
	White paper	Parallel LDO Architecture Design Using Ballast Resistors	PDF \| HTML	14 Dez 2022
	White paper	Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast	PDF \| HTML	13 Dez 2022
	Selection guide	Low Dropout Regulators Quick Reference Guide (Rev. P)		21 Mär 2018

Design und Entwicklung

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Evaluierungsplatine

TPS7A8901EVM-853 — TPS7A89 Kleiner Dual 2-A-LDO-Spannungsregler mit geringem Rauschen (3,8 μVRMS) – Evaluierungsmodul

Das Evaluierungsmodul TPS7A8901EVM-853 wurde für eine typische Konfiguration entwickelt, um den Betrieb und die Leistung des dualen Low-Dropout-Spannungsreglers TPS7A89 mit 2 A zu evaluieren. Die EVM-Platine ist als Referenzdesign für technische Anwendungen konfiguriert, die einen Strom für eine (...)

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