Texas Instruments LM53635AQRNLTQ1 | Demoboard TIDA-010011

Description

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are generated using DC-DC converters with an integrated FET and a power module with an integrated inductor for size. The design features a HotRod™ package type for applications requiring low EMI. It is also optimal for design time constrained applications. Additional features include DDR termination regulator, input supply OR-ing, voltage sequencing, eFuse for overload protection, and voltage and load current monitoring. This design can be used with a processor, digital signal processor and field-programmable gate array. It has been tested for radiated emission, per CISPR22 meeting class A and B requirements.

Features

• AEC-Q100 Automotive Qualified:
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Device HBM Classification Level 2
  • Device CDM Classification Level C6
• –40°C to +150°C Junction Temperature Range
• 15-µA Quiescent Current at no Load (Typical) with 3.3-V Output
• 4 mm × 5 mm, 0.5-mm Pitch VQFN Package With Wettable Flanks and 0.6-mm VIN Spacing
• Low EMI and Switch Noise
• Spread Spectrum Option
• External Frequency Synchronization
• RESET Output with Internal Filter and 3-ms Release Timer
• Pin-Selectable Forced PWM Mode
• Built-In Compensation, Soft Start, Current Limit, Thermal Shutdown, and UVLO
• 0.6-V Dropout at 3.5 A at 105°C TA
• ±1% Output Voltage Tolerance (–40°C to 125°C TJ)
• Available With Fixed 5-V, 3.3-V or Adjustable Output

Typical applications

• Battery-Powered Applications
• Automotive Telematics / Navigation Systems
• In-Dash Instrumentation

More information

• Datasheet
• IC product information