SA47342YIQ

• Input Voltage: 2.8V to 5.5V

• 3 Step Down Converters:

    - Output Voltage: 0.8V to 2.2V (±2%, 10mV Step)

    - Maximum Output Current up to 3A

    - Switching Frequency: 2.25Mhz/4.5Mhz

    - High Peak Efficiency > 90%

    - Spread Spectrum Modulation (up to +16%)

    - Ultra Low Noise Outputs: 1V and 1.8V 

    - Programmable Power Sequencer

• 2 Linear Regulators (LDO):

    - Output Voltage: 0.8V to 3.3V (50mV Step)

    - Configurable Load Switch Option

    - Maximum Output Current up to 450mA

    - Bypass Voltage of 100mV@450mA Load

    - Separate LDO Input Pin for Optimized Efficiency at Specified LDO Output

• Input Voltage OV Monitoring

• Output Voltage Power Good Monitoring with Second Source of Reference Voltage

• Over Current and Thermal Protection

• Power Good Pin Indication

• Watchdog Timer Control

• I2C Communication

• BIST and CRC

• Functional Safety: AEC-Q100 Qualified (Grade 1)

• Package: QFN3.5×4-26

• ISO 26262 Compliant: ASIL-B

The SA47342 is a low voltage PMIC (VIN=2.8V - 5.5V) with 3 switching buck regulators (3A/3A/2.5A) and 2 LDOs (450mA/450mA). The output of buck regulators and LDOs have 10mV & 50mV respectively MTP programming option. These programming options are designed to enable the customers to trim the setting on their system. An I2C communication interface and Enable pin control the powering up the device.

All the step-down DC to DC converters support both 2.25MHz and 4.5MHz switching frequency. Spread Spectrum range is up to 16% with 0.5% step to further optimize the EMI performance.

The SA47342 is available in a QFN3.5×4-26 package.