Блог компании Mingjiada Electronics Supply TI TPS7A6550 300mA, 40V Automotive Low-Dropout Voltage Regulator

Mingjiada Electronics Supply TI TPS7A6550 300mA, 40V Automotive Low-Dropout Voltage Regulator

TPS7A6550 is a 300mA, 40V input, ultra-low quiescent current low-dropout linear regulator (LDO) developed by Texas Instruments (TI) for automotive electronics, featuring a fixed 5V output with an output accuracy of ±2 per cent, with a typical light-load quiescent current of just 25 µA. It is AEC-Q100 certified for automotive applications and operates at a maximum junction temperature of 150°C. Shenzhen Mingjiada Electronics Co., Ltd. — long-term supplier of the TPS7A6550QKVURQ1 (TO-252-3 package, brand-new and genuine in stock) and the full range of TI power management devices, supporting both sample and bulk purchases.

TPS7A6550 low-dropout linear regulator is specifically designed to meet the requirements for low power consumption and a quiescent current of less than 25 µA in light-load applications. The device features integrated overcurrent protection, and its design ensures stable operation even when using low-ESR ceramic output capacitors. The low-voltage tracking capability allows for the use of smaller input capacitors and may eliminate the need for a boost converter during cold start-up.

TPS7A6550 Key Specifications
Input voltage range: 4 V – 40 V (transient tolerance 45 V)
Maximum output current: 300 mA​
Output voltage: Fixed 5 V, accuracy ±2%​
Dropout voltage: 300 mV @ IOUT=150 mA; maximum 0.5 V @ 250 mA
Quiescent current (Iq): Typically 25 µA at light load (maximum 40 µA)
PSRR: 60 dB → 30 dB (100 Hz → 150 kHz)
Output capacitance: Supports low-ESR ceramic capacitors; stable operation achievable with as little as 1 µF
Output accuracy: ±2%

TPS7A6550 Key Features:
Low dropout voltage: 300 mV at IOUT = 150 mA
Wide input voltage range from 7 V to 40 V
Transient voltage up to 45 V
Maximum output current of 300 mA
Ultra-low quiescent current of 25 µA (typical) under light load conditions
Fixed output voltages of 3.3V and 5V, with a tolerance of ±2%
Low ESR ceramic output stabilising capacitor
Integrated fault protection:
Short-circuit and overcurrent protection
Thermal shutdown
Low input voltage tracking
Thermally enhanced power package: 3-pin TO-252 (KVU, DPAK)

The TPS7A6550 is specifically designed for automotive constant-voltage and low-power applications, with typical applications including:
In-vehicle infotainment systems with sleep mode
Body control modules (BCMs)
Always-on battery-powered applications​
Automotive gateways
ADAS and sensor power supply
Dashboards and instrument clusters
Chassis and safety system ECUs​

With a combination of 40V voltage rating, ultra-low quiescent current of 25µA, low dropout voltage of 300mV and AEC-Q100 certification, the TPS7A6550 is a cost-effective choice for automotive constant-voltage, body control and infotainment sleep mode power supply applications. For real-time stock availability, the latest quotations or selection guidance regarding the TPS7A6550QKVURQ1, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.
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