Shenzhen Meiyuxin Technology Co., Ltd. [recycling electronic waste materials] supplies LM25148QRGYRQ1 automotive 42V synchronous step-down DC/DC controller with ultra-low IQ Quality assurance Brand new and original! ! !

Product Description:

The LM25148QRGYRQ1 is a 42V ultra-low IQ synchronous step-down DC/DC controller for high current single output applications. The controller uses a peak current mode control architecture for simple loop compensation, fast transient response, and excellent load and line regulation. The LM25148QRGYRQ1 can be programmed to operate in interleaved mode (parallel outputs) for precise current sharing for high current applications. It can operate from input voltages as low as 3.5V and near 100% duty cycle if required.

The LM25148QRGYRQ1 has a unique EMI reduction feature called Dual Random Spread Spectrum (DRSS). Combining low-frequency triangular modulation with high-frequency random modulation reduces EMI interference in the low-frequency and high-frequency bands, respectively. This hybrid technology complies with various resolution bandwidth (RBW) settings specified in industry-standard EMC tests.

Additional features of the LM25148QRGYRQ1 include 150°C maximum operating junction temperature, user-selectable diode emulation for reduced current consumption at light loads, open-drain power-good flag for fault reporting and output monitoring, precision enable input, monotonic Start-up to pre-biased load, integrated VCC bias supply regulator, 3ms internal soft-start time and thermal shutdown protection with auto-recovery.

Features:

• AEC-Q100 Qualified for Automotive Applications:

– Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range

• Functional safety

– Documentation to aid in functional safety system design

• Integrated EMI mitigation

– Optional Dual Random Spread Spectrum (DRSS) feature for enhanced EMI reduction in low and high frequency bands

– Optimized for CISPR 25 Class 5 requirements

• Versatile Synchronous Buck DC/DC Controller

– Wide Input Voltage Range from 3.5V to 42V

– 1% Accurate, Fixed 3.3V/5V/12V or 0.8V to 36V Adjustable Output Voltage

– 150°C maximum junction temperature

– Lossless DCR or shunt current sensing

– Quiescent Current of 2.3 µA (Typical) in Shutdown

– 9.5µA Low Leakage Current

– 3ms Internal Soft-Start Ramp

– Up to two phases can be stacked

– Internal bootstrap diode

• Switching Frequency from 100kHz to 2.2MHz

– Sync In and Sync Out functions

– Selectable PFM or FPWM mode

• Inherent protection features for robust design

– Internal hiccup mode overcurrent protection

– Enable and PGOOD functions

– VCC, VDDA and gate drive UVLO protection

– Internal or external loop compensation

– Thermal Shutdown Protection with Hysteresis

Application:

• Automotive electronic systems

• Advanced Driver Assistance Systems (ADAS)

• Infotainment system and instrument cluster

• Body electronics