Inicio Administración de potencia Reguladores lineales y de baja salida (LDO)
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Reguladores lineales y de baja salida (LDO)
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TPS7A43-Q1

PRESENTACIÓN PRELIMINAR

Reg. de LDO, ultrabaja IQ, 50 mA y 85 V, para uso automotriz con indic. de potencia correcta y prec.

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TPS7A43-Q1

PRESENTACIÓN PRELIMINAR
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Detalles del producto

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)

  • ±0.85% 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]
    • Meets IPC-2221B for clearance and creepage
  • 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)

  • ±0.85% 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]
    • Meets IPC-2221B for clearance and creepage

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 a good fit 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 ±0.85% 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 an 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. Use the EN input and PG output 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 a good fit 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 ±0.85% 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 an 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. Use the EN input and PG output for sequencing multiple power sources in the system.
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Documentación técnica

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* 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 (Rev. A) PDF | HTML 11 jun 2026
Functional safety information TPS7A43-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 14 ene 2026

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Placa de evaluación

TPS7A43EVM-047 — Regulador de tensión LDO TPS7A43 doble de 50 mA, 85 V e IQ ultrabaja con módulo de evaluación de

El módulo de evaluación (EVM) TPS7A43EVM-047 es una plataforma para evaluar el funcionamiento y el rendimiento del regulador lineal TPS7A43. Esta configuración del EVM contiene un único regulador de tensión de 50 mA, alta tensión, corriente inactiva baja (IQ), salida doble y caída baja (LDO) para (...)

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