AEC-Q100 Contrôleur PWM, BD49101AEFS-ME2, 500 KHz, 25 V, HTSSOP 44 broches

The BD49101AEFS-M LSI is a multi-channel power supply IC that can provide all necessary supply voltages for auto mobile audio systems. The IC has two Switching Power Supplies (DCDC), five Regulators (REG) and a High Side switch. This single power supply system can provide the required voltages to all systems including the MCU, CD, tuner, USB, illumination, audio circuits and others. The IC system is based on switching regulator which has high efficiency then you can suppress heat of IC than before. And it has low power mode operation or voltage control function so that you can get (1) High Efficiency (2) Low IQ and (3) easiness of power supply design.

Integrated 7 channels of Power Supply for Car Audio
2 DCDC (Integrated 1 Controller)
5 REG
Transistor MOSFET de commutateur High Side
Integrated Low Power Standby REG for MCU Power Supply
REG4 Cable Impedance Compensation
Interface I²C
Selectable Oscillation Frequency using External Resistance
Synchronisation de fréquence externe
Power Supply Control Function (Power on/off Sequencer).
Low Voltage, Over Voltage and REG4 Over Current Detect Flag
Integrated Protection Circuitry:
Protection de batterie contre les surtensions
Protection contre les surintensités
Shutdown thermique.