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TPS7A6650QDGNRQ1

Auto 150mA LDO, 4-40V in, 5V out, 12uA Iq, AEC-Q100, HVSSOP-8

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Pieza del fabricante：

TPS7A6650QDGNRQ1

Paquete：

HVSSOP-8 PowerPAD (3.0 x 4.9 x 0.95 mm)

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Descripción

Productos

The TPS7A6650QDGNRQ1 from Texas Instruments is an AEC-Q100 qualified automotive 150mA low-dropout linear regulator in an 8-pin HVSSOP PowerPAD package. With 4-40V input range (45V transient), 5V fixed output, 12uA Iq, 300mV dropout, programmable power-good reset, and load tracking, it is designed for off-battery automotive standby systems.

Especificaciones

Output Voltage 5.0V fixed
Corriente de salida 150 mA
Input Voltage Range 4V to 40V (45V transient)
Dropout Voltage 300 mV typ @ 150mA (Vin=4V); 450mV max
Corriente de reposo 12 uA typ (light load); 20 uA max
Shutdown Current 2 uA (EN = Low)
Output Accuracy +/-2%
PSRR 60 dB @ 100Hz; 40 dB @ 100kHz
Line Regulation 5 mV
Load Regulation 20 mV
Reference Voltage 1.223V
Output Capacitor 2.2uF to 100uF ceramic
Power-Good (PG) Open-drain, programmable delay via CT pin
Enable (EN) Active high
Protection Thermal shutdown, short-circuit, UVLO
Temperatura de funcionamiento -40 to +125 C (ambient); -40 to +150 C (junction)
AEC-Q100 Grade 1 (Grade 0 for TPS7A6650EDGNRQ1 variant)
Paquete HVSSOP-8 PowerPAD (3.0 x 4.9 mm)
Status Activo

Características

  • AEC-Q100 qualified for automotive applications (Grade 1)
  • 4-40V wide input with 45V transient capability
  • Ultra-low 12uA quiescent current
  • 300mV dropout at 150mA
  • 5V fixed output with +/-2% accuracy
  • Programmable power-good reset delay via external capacitor
  • Low-voltage input tracking for cold-crank
  • Thermal shutdown and short-circuit protection
  • 2uA shutdown current (EN = Low)
  • Ceramic capacitor stable (2.2-100uF)

Aplicaciones

  • Automotive body control modules
  • Always-on battery systems (gateway, RKE, immobilizer)
  • Infotainment sleep mode power
  • Standby MCU power supply

The TPS7A6650QDGNRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive low-dropout linear regulator in an 8-pin HVSSOP PowerPAD package. The 50 denotes 5.0V fixed output, Q indicates AEC-Q100 automotive qualification, DGN denotes HVSSOP-8 PowerPAD package, R denotes tape and reel (2500 pcs/reel), and Q1 confirms the automotive -Q1 product designation. The device operates from a wide 4V to 40V input range with 45V transient tolerance, making it suitable for direct off-battery (12V/24V automotive battery) connection. The ultra-low 12uA typical quiescent current is critical for always-on standby systems where battery drain must be minimized during vehicle sleep modes. The 300mV typical dropout voltage at 150mA allows operation down to 5.3V input while maintaining 5V regulation. A programmable power-good (PG) reset delay is set by an external capacitor on the CT pin, providing a controlled startup sequence for the supervised MCU. The low-voltage tracking feature allows the output to follow the input during cold-crank transients, eliminating the need for a boost converter. Short-circuit protection and thermal shutdown ensure robust operation in harsh automotive environments.

The TPS7A6650QDGNRQ1 operates through four subsystems: (1) Pass Element Regulation: A P-channel MOSFET pass element regulates the output to 5.0V by controlling the gate voltage in response to the feedback error amplifier output. The 300mV dropout at 150mA means the MOSFET requires only 300mV VDS headroom to maintain regulation. (2) Low Iq Architecture: The 12uA quiescent current is achieved by biasing the error amplifier and bandgap reference at minimal current levels. During shutdown (EN = Low), all internal circuits are disabled and the pass element is turned off, reducing supply current to only 2uA. (3) Power-Good Reset: The PG open-drain output is pulled low when VOUT drops below 90% of the nominal 5.0V. When VOUT exceeds 90%, an internal current source charges the external CT capacitor. The PG output releases high when the CT voltage exceeds an internal threshold. With 100nF on CT, the reset delay is approximately 100ms. Without CT, the default delay is 290us. (4) Low-Voltage Tracking: When VIN drops below the minimum input for regulation (dropout region), the output tracks the input minus the pass element voltage drop. This allows the system to gracefully ride through cold-crank transients without generating a reset, as long as the MCU can operate at reduced voltage.

Pin Nombre Tipo Descripción
1 ES Entrada Enable (active high, connect to VIN for self-bias)
2 VIN Potencia Input voltage (4-40V, up to 45V transient)
3 VOUT Potencia Regulated 5.0V output
4 GND Potencia Suelo
5 NC/FB - No connect (fixed output version)
6 CT E/S Reset delay capacitor (open = 290us default)
7 PG Salida Power-good reset (open-drain, active low)
8 GND Potencia Ground (PowerPAD)
  • Always-on 5V standby MCU supply from 12V car battery with 12uA Iq, PG reset, and cold-crank tracking
  • Body control module 5V rail with 40V overvoltage tolerance, programmable 100ms PG delay, and short-circuit protection
  • Remote keyless entry receiver 5V supply with 2uA shutdown current during vehicle sleep mode
  • Gateway module with EN controlled by ignition switch, 45V transient protection, and AEC-Q100 Grade 1 qualification
Modelo Fabricante Vout Iq Notas
TPS7A6633QDGNRQ1 TI 3.3V 12uA 3.3V fixed output version
TPS7A6601QDGNRQ1 TI Adj 12uA Adjustable output version
TLE4274SV Infineon 5V ~30uA Automotive LDO, TO-263
NCV4264-2CST5T3G onsemi 5V ~28uA Auto LDO with watchdog
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