TPS7A89

활성

2A, 저잡음, 고정밀, 듀얼 채널 조정 가능 초저손실 전압 레귤레이터

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

TPS7A89

활성

데이터 시트

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제품 상세 정보

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 mm × 4 mm)

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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기타 선형 및 저손실(LDO) 레귤레이터 찾기

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기술 자료

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4개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	데이터 시트	TPS7A89 Small, Dual, 2-A, Low-Noise (3.8 μVRMS), LDO Voltage Regulator datasheet (Rev. A)	PDF \| HTML	2016. 7. 15
	백서	Parallel LDO Architecture Design Using Ballast Resistors	PDF \| HTML	2022. 12. 14
	백서	Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast	PDF \| HTML	2022. 12. 13
	선택 가이드	Low Dropout Regulators Quick Reference Guide (Rev. P)		2018. 3. 21

설계 및 개발

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평가 보드

TPS7A8901EVM-853 — TPS7A89 소형 듀얼 2A 저잡음(3.8μVRMS) LDO 전압 레귤레이터 평가 모듈

TPS7A8901EVM-853 평가 모듈은 TPS7A89, 이중 2A 저손실 전압 레귤레이터의 작동과 성능을 평가할 수 있는 일반적인 구성으로 설계되었습니다. EVM 회로 보드는 채널당 최대 2A의 동적 부하까지 전류가 필요한 엔지니어링 애플리케이션을 위한 레퍼런스 설계로 구성되어 있습니다.

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