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LM536255QRNLRQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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LM536255QRNLRQ1 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 55 page  Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LM53625-Q1, LM53635-Q1 SNVSAA7A – DECEMBER 2015 – REVISED MAY 2016 LM53625/35-Q1, 2.5-A or 3.5-A, 36-V Synchronous, 2.1-MHz, Step-Down DC-DC Converter 1 1 Features 1 • 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 2 Applications • Automotive Telematics • Navigation Systems • In-Dash Instrumentation • Battery-Powered Applications 3 Description The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625- Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads. Device Information(1) DEVICE NAME PACKAGE BODY SIZE LM53625-Q1 VQFN-HR (22) 5.00 mm × 4.00 mm LM53635-Q1 (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit Typical Automotive Layout (22 mm x 12.5 mm) |
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