전력 관리 선형 및 저손실(LDO) 레귤레이터

TPS7A43-Q1

미리 보기

전원 양호 및 정밀 인에이블 기능을 지원하는 차량용, 50mA 85V 초저 IQ LDO(저손실) 레귤레이터

제품 상세 정보

Rating Automotive Vin (max) (V) 85 Vin (min) (V) 4 Iout (max) (A) 0.05 Output options Adjustable Output, Fixed Output Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Noise (µVrms) 125 PSRR at 100 KHz (dB) 73 Iq (typ) (mA) 0.0055 Features Enable, Power good Thermal resistance θJA (°C/W) 51.5 Load capacitance (min) (µF) 1 Regulated outputs (#) 2 Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 85 Vin (min) (V) 4 Iout (max) (A) 0.05 Output options Adjustable Output, Fixed Output Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Noise (µVrms) 125 PSRR at 100 KHz (dB) 73 Iq (typ) (mA) 0.0055 Features Enable, Power good Thermal resistance θJA (°C/W) 51.5 Load capacitance (min) (µF) 1 Regulated outputs (#) 2 Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 125
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications:
    • Temperature Grade 1: −40°C to +125°C, TA
    • Junction temperature: −40°C to +150°C, TJ
  • Wide input voltage range: 4V to 85V
    • Supports direct connection to 48V, 24V, or 12V automotive battery
  • Wide output voltage range (VOUT):
    • Adjustable: 1.24V to 14.5V
    • Fixed: 3.3V, 5.0V
  • Selectable intermediate output (VMID_OUT):
    • 10V, 12V, 15V
  • Output current:
    • 50mA (shared between OUT and MID_OUT)
  • ±0.8% VOUT accuracy over full temperature range

  • Ultra-low IQ: 5.5µA (typical)
  • Precision enable
  • Power-good (PG) output
  • High PSRR at 100kHz:
    • 73dB (OUT)
    • 47dB (MID_OUT)
  • Thermal shutdown and overcurrent protection
  • Package:
    • 10-pin HVSSOP (DGQ) [RθJA = 51.5°C/W]
  • AEC-Q100 qualified for automotive applications:
    • Temperature Grade 1: −40°C to +125°C, TA
    • Junction temperature: −40°C to +150°C, TJ
  • Wide input voltage range: 4V to 85V
    • Supports direct connection to 48V, 24V, or 12V automotive battery
  • Wide output voltage range (VOUT):
    • Adjustable: 1.24V to 14.5V
    • Fixed: 3.3V, 5.0V
  • Selectable intermediate output (VMID_OUT):
    • 10V, 12V, 15V
  • Output current:
    • 50mA (shared between OUT and MID_OUT)
  • ±0.8% VOUT accuracy over full temperature range

  • Ultra-low IQ: 5.5µA (typical)
  • Precision enable
  • Power-good (PG) output
  • High PSRR at 100kHz:
    • 73dB (OUT)
    • 47dB (MID_OUT)
  • Thermal shutdown and overcurrent protection
  • Package:
    • 10-pin HVSSOP (DGQ) [RθJA = 51.5°C/W]

The TPS7A43-Q1 is a wide input, low-dropout (LDO) linear voltage regulator with 4V to 85V input voltage range and very-low quiescent current. This device can support a wide range of input voltages and withstand line transient voltages up to 90V (200ms), making the device designed for direct connection to 48V, 24V, or 12V automotive battery. Ultra-low IQ of 5.5µA typical, 9µA maximum helps meet stringent system requirements and extends battery life in battery-connected applications.

The TPS7A43-Q1 output (OUT) is available in both fixed and adjustable output versions, with regulation from 1.24V to 14.5V and ±0.8% accuracy across temperature. The device is intended for use in an array of automotive applications, including supply for always-on loads like microcontrollers and wake-up functionality for various ICs (for example, CAN). The device is an efficient option to provide power to critical components during system sleep conditions. The TPS7A43-Q1 also features a second intermediate output (MID_OUT) that can be set to 10V, 12V, or 15V using the MVSEL pins. MID_OUT can supply power for LIN or be used to bias amplifiers, minimizing system complexity by eliminating the need for additional regulators.

The TPS7A43-Q1 features a precision enable input that enables or disables the LDO at a fixed and accurate threshold voltage using a resistor divider from the input.

The power-good (PG) output is used to monitor the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power sources in the system.

The TPS7A43-Q1 is a wide input, low-dropout (LDO) linear voltage regulator with 4V to 85V input voltage range and very-low quiescent current. This device can support a wide range of input voltages and withstand line transient voltages up to 90V (200ms), making the device designed for direct connection to 48V, 24V, or 12V automotive battery. Ultra-low IQ of 5.5µA typical, 9µA maximum helps meet stringent system requirements and extends battery life in battery-connected applications.

The TPS7A43-Q1 output (OUT) is available in both fixed and adjustable output versions, with regulation from 1.24V to 14.5V and ±0.8% accuracy across temperature. The device is intended for use in an array of automotive applications, including supply for always-on loads like microcontrollers and wake-up functionality for various ICs (for example, CAN). The device is an efficient option to provide power to critical components during system sleep conditions. The TPS7A43-Q1 also features a second intermediate output (MID_OUT) that can be set to 10V, 12V, or 15V using the MVSEL pins. MID_OUT can supply power for LIN or be used to bias amplifiers, minimizing system complexity by eliminating the need for additional regulators.

The TPS7A43-Q1 features a precision enable input that enables or disables the LDO at a fixed and accurate threshold voltage using a resistor divider from the input.

The power-good (PG) output is used to monitor the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power sources in the system.

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상위 문서 유형 직함 형식 옵션 날짜
* Data sheet TPS7A43-Q1 Automotive 50mA, 85V, Ultra-Low IQ , Low-Dropout Voltage Regulator With Power-Good, Precision Enable, and Selectable Mid-Output Rail datasheet PDF | HTML 2026/03/09
Functional safety information TPS7A43-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2026/01/14

설계 및 개발

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평가 보드

TPS7A43EVM-047 — TPS7A43 50mA, 85V, 초저 IQ, 듀얼 LDO 전압 레귤레이터, 전원 양호 평가 모듈

TPS7A43EVM-047 평가 모듈(EVM)은 TPS7A43 선형 레귤레이터의 작동 및 성능을 평가하기 위한 플랫폼입니다. 이 EVM 구성에는 일반 애플리케이션을 위한 단일 50mA, 고전압, 낮은 정동작 전류(IQ), 이중 출력, LDO(저손실) 전압 레귤레이터가 포함되어 있습니다. 이 레귤레이터는 두 출력 간에 최대 50mA를 분할하여 전달할 수 있으며 최대 85V의 넓은 입력 전압(VIN) 범위를 제공합니다.

TPS7A43의 안정성을 위해 1µF(또는 그 이상) 출력 커패시터(COUT)를 사용하고 중간 출력에는 최소 3xC (...)

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주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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