TPS7A89

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Regulador de tensión de caída ultrabaja ajustable de 2 A, ruido bajo, alta precisión y doble canal

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

TPS7A89

ACTIVO

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Detalles del producto

Output options

Adjustable Output

Iout (max) (A)

2

Vin (max) (V)

6.5

Vin (min) (V)

1.4

Vout (max) (V)

5.2

Vout (min) (V)

0.8

Noise (µVrms)

3.8

Iq (typ) (mA)

2.1

Thermal resistance θJA (°C/W)

33

Rating

Catalog

Load capacitance (min) (µF)

10

Regulated outputs (#)

2

Features

Enable, Foldback Overcurrent protection, Power good, Soft start

Accuracy (%)

1

PSRR at 100 KHz (dB)

35

Dropout voltage (Vdo) (typ) (mV)

260

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output

Iout (max) (A)

2

Vin (max) (V)

6.5

Vin (min) (V)

1.4

Vout (max) (V)

5.2

Vout (min) (V)

0.8

Noise (µVrms)

3.8

Iq (typ) (mA)

2.1

Thermal resistance θJA (°C/W)

33

Rating

Catalog

Load capacitance (min) (µF)

10

Regulated outputs (#)

2

Features

Enable, Foldback Overcurrent protection, Power good, Soft start

Accuracy (%)

1

PSRR at 100 KHz (dB)

35

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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	Tipo	Título		Fecha
*	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 dic 2022
	White paper	Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast	PDF \| HTML	13 dic 2022
	Selection guide	Low Dropout Regulators Quick Reference Guide (Rev. P)		21 mar 2018

Diseño y desarrollo

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Placa de evaluación

TPS7A8901EVM-853 — Módulo de evaluación de regulador de tensión LDO pequeño doble de 2 A, ruido bajo (3.8 μVRMS) TPS7A8

The TPS7A8901EVM-853 evaluation module is designed for a typical configuration to evaluate the operation and performance of the TPS7A89, dual 2-A low dropout voltage regulator. The EVM circuit board is configured to be a reference design for engineering applications requiring current to a dynamic (...)

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