TPS65320-Q1
Convertidor reductor de 3.6 V a 36 V y 3.2 A con regulador LDO de 280 mA de origen automático para a
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TPS65320-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- One High-VIN Step-Down Converter
- 3.6- to 40-V Input Range
- 250-mΩ High-Side MOSFET
- 3.2-A Maximum Load Current, 1.1- to 20-V Output Adjustable
- 100-kHz to 2.5-MHz Adjustable Switch-Mode Frequency
- Less Than 140-µA Operating Quiescent Current
- One Low-Dropout Voltage Regulator (LDO)
- 280-mA Current Capability With 28-μA (Typical) Operating Quiescent Current in No-Load Condition
- Input Supply Auto-Source to Balance Efficiency and Low Standby Current
- Power-Good Output (Push-Pull)
- Low-Dropout Voltage of 300 mV at IOUT = 200 mA (Typical)
- Overcurrent Protection for Both Regulators
- Overtemperature Protection
- 14-Pin HTSSOP Package With PowerPAD Package
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The TPS65320-Q1 device is a combination of a 40-V, 3.2-A, DC-DC step-down converter and a low-dropout (LDO) regulator. The DC-DC step-down converter, referred to as the buck regulator, has an integrated high-side MOSFET. The LDO regulator also has an integrated MOSFET and a low-input supply current of 28-μA (typical) in a no-load condition. Furthermore, the LDO regulator has an active-low, push-pull reset output pin. To reduce heat, the input supply of the LDO regulator can auto-source from the input voltage to the output of the buck regulator. The low-voltage tracking feature can eliminate the need to use a boost converter during cold-crank conditions.
The buck regulator has a switching frequency range from 100 kHz to 2.5 MHz that provides a flexible design to fix system requirements. The external loop compensation allows for optimization of the converter response for the appropriate operating conditions. A low-ripple pulse-skip mode reduces the no-load input supply current to less than 140 μA.
The device has built-in protection features such as soft start, current limit, thermal sensing, and shutdown because of excessive power dissipation. Furthermore, the device has an internal undervoltage-lockout (UVLO) function that turns off the device at a too-low supply voltage.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | TPS65320-Q1 40-V Step-Down Converter With Eco-mode and LDO Regulator datasheet (Rev. F) | PDF | HTML | 07 mar 2016 |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje