TPS7A87

ACTIVO

Regulador de tensión de caída ultrabaja ajustable de 500 mA, bajo ruido, PSRR alto y doble canal

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document-pdfAcrobat TPS7A87 Dual, 500-mA, Low-Noise (3.8 μVRMS), LDO Voltage Regulator datasheet (Rev. A) (Inglés) PDF | HTML

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Regulador de tensión de caída ultrabaja ajustable de 500 mA, ruido bajo y PSRR alta con alta precisi 500-mA low noise (4.7-µVrms) LDO in a small package (2.5 mm x 2.5 mm)

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Regulador de tensión de caída baja (LDO), canal doble, alta PSRR, baja IQ, 500 mA 500-mA dual LDO with lower IQ in a smaller package.

TPS7A87

ACTIVO

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Detalles del producto

Output options

Adjustable Output, Dual output

Iout (max) (A)

0.5

Vin (max) (V)

6.5

Vin (min) (V)

1.4

Vout (max) (V)

5.2

Vout (min) (V)

0.8

Rating

Catalog

Noise (µVrms)

3.8

PSRR at 100 KHz (dB)

48

Iq (typ) (mA)

2.1

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

2

Features

Enable, Foldback Overcurrent protection, Power good, Soft start

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

75

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output, Dual output

Iout (max) (A)

0.5

Vin (max) (V)

6.5

Vin (min) (V)

1.4

Vout (max) (V)

5.2

Vout (min) (V)

0.8

Rating

Catalog

Noise (µVrms)

3.8

PSRR at 100 KHz (dB)

48

Iq (typ) (mA)

2.1

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

2

Features

Enable, Foldback Overcurrent protection, Power good, Soft start

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

75

Operating temperature range (°C)

-40 to 125

WQFN (RTJ)

20

16 mm² 4 x 4

Two Independent LDO Channels
Low Output Noise: 3.8 µV_RMS (10 Hz–100 kHz)
Low Dropout: 100 mV_MAX at 0.5 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 Ripple Rejection:
- 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
4-mm × 4-mm, 20-Pin WQFN Package

Two Independent LDO Channels
Low Output Noise: 3.8 µV_RMS (10 Hz–100 kHz)
Low Dropout: 100 mV_MAX at 0.5 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 Ripple Rejection:
- 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
4-mm × 4-mm, 20-Pin WQFN Package

The TPS7A87 is a dual, low-noise (3.8 µV_RMS), low-dropout (LDO) voltage regulator capable of sourcing 500 mA per channel with only 100 mV of maximum dropout.

The TPS7A87 provides the flexibility of two independent LDOs and approximately 30% 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 TPS7A87 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 TPS7A87 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), complementary metal oxide semiconductor (CMOS) sensors, and video application-specific integrated circuits (ASICs)].

The TPS7A87 is designed to power noise-sensitive components such as those found in instrumentation, medical, video, professional audio, test and measurement, and high-speed communication 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 TPS7A87 is a dual, low-noise (3.8 µV_RMS), low-dropout (LDO) voltage regulator capable of sourcing 500 mA per channel with only 100 mV of maximum dropout.

The TPS7A87 provides the flexibility of two independent LDOs and approximately 30% 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 TPS7A87 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 TPS7A87 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), complementary metal oxide semiconductor (CMOS) sensors, and video application-specific integrated circuits (ASICs)].

The TPS7A87 is designed to power noise-sensitive components such as those found in instrumentation, medical, video, professional audio, test and measurement, and high-speed communication 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	TPS7A87 Dual, 500-mA, Low-Noise (3.8 μVRMS), LDO Voltage Regulator datasheet (Rev. A)	PDF \| HTML	12 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
	Application note	High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision (Rev. A)		30 jul 2021

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS7A8701EVM-852 — Módulo de evaluación de regulador de tensión LDO doble de 500 mA, ruido bajo (3.8 μVRMS) TPS7A87

The TPS7A8701EVM-852 evaluation module is designed for a typical configuration to evaluate the operation and performance of the TPS7A87, dual 500-mA low dropout voltage regulator. The EVM circuit board is configured to be a reference design for engineering applications requiring current to a (...)

Guía del usuario: PDF

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Modelo de simulación

TPS7A87 PSpice Transient Model

SBVM628.ZIP (90 KB) - PSpice Model

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Modelo de simulación

TPS7A87 Unencrypted PSpice Transient Model

SBVM627.ZIP (3 KB) - PSpice Model

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Diseños de referencia

TIDA-01434 — Diseño de referencia de ADC de 24 bits de alimentación bipolar aislada y sin transformador

This isolated, 3.65-mm thin reference design enables highly-integrated, bipolar input and high-performance solutions with a 24-bit delta-sigma analog-to-digital converter (ADC). Modern analog input modules need high performance in different aspects such as higher channel density at the same room (...)

Design guide: PDF

Esquema: PDF

Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
WQFN (RTJ)	20	Ultra Librarian

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TPS7A87

Regulador de tensión de caída ultrabaja ajustable de 500 mA, bajo ruido, PSRR alto y doble canal

Se encuentra disponible una versión más nueva de este producto

Misma funcionalidad con diferente configuración de pines que el dispositivo comparado

Funcionalidad similar a la del dispositivo comparado

TPS7A87

Detalles del producto

Consulte productos similares en el inventario de TI.com

Documentación técnica

Diseño y desarrollo

TPS7A8701EVM-852 — Módulo de evaluación de regulador de tensión LDO doble de 500 mA, ruido bajo (3.8 μVRMS) TPS7A87

TPS7A87 PSpice Transient Model

TPS7A87 Unencrypted PSpice Transient Model

TIDA-01434 — Diseño de referencia de ADC de 24 bits de alimentación bipolar aislada y sin transformador

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Serie de videos

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