LM62435CPPQRJRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM62435CPPQRJRRQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for low electromagnetic interference (EMI) applications. It operates with an input voltage range of 3 V to 36 V and delivers a maximum output current of 3.5 A. The device integrates a fixed switching frequency of 2.1 MHz and features a very low quiescent current of 9 µA during operation, dropping to 2.3 nA in shutdown mode. It is housed in a VQFN-HR-14 package and supports a wide operating temperature range from -40°C to +150°C, ensuring reliability in harsh automotive environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability
• Low EMI design utilizing spread spectrum frequency modulation to reduce noise
• High efficiency synchronous rectification with integrated power switches
• Ultra-low standby current consumption for battery-powered systems

Voltage Regulators - DC DC Switching Regulators Applications

• Infotainment system power distribution
• Instrument cluster voltage regulation
• Telematics control unit power supplies
• Body control module auxiliary rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as CPPQRJRRQ1 against official Texas Instruments documentation to ensure correct tape-and-reel packaging and specific manufacturing lot codes. Confirm that the component meets the required AEC-Q100 grade specifications for your target automotive application segment before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring a compact solution with strict EMI constraints and high thermal performance. The fixed 2.1 MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Ensure the input voltage source remains within the 3 V to 36 V window and that the load current does not exceed the 3.5 A continuous limit under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM62435 family of automotive synchronous buck converters. It shares architectural similarities with other TI parts like the TPS624xx series but is specifically optimized for automotive durability and EMI reduction. The VQFN-HR-14 package provides enhanced thermal dissipation capabilities suitable for space-constrained printed circuit board layouts in vehicle electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-to-pin replacements may include other LM62435 variants with different suffixes indicating package or temperature variations. Verify electrical parameters such as switching frequency and output current capability against the original datasheet before substituting.