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TPS54362-Q1 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54362-Q1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 40 page OV_TH RST_TH COMP SS VSENSE PH BOOT VReg Rslew V (Vreg) VIN LPM VIN EN SYNC RST GND RT Cdly V (VIN) TPS54362x-Q1 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54362-Q1 SLVS845G – MARCH 2009 – REVISED AUGUST 2014 TPS54362-Q1 3-A, 60-V Step-Down DC-DC Converter With Low I(q) 1 Features 2 Applications 1 • Qualified for Automotive Applications • Automotive Telematics • AEC-Q100 Qualified With the Following Results: • Navigation Systems • In-Dash Instrumentation – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature • Battery-Powered Applications – Device HBM ESD Classification Level 2 3 Description – Device CDM ESD Classification Level C5 The TPS54362-Q1 device is a step-down switch- • Withstands Transients up to 60 V With an mode power supply with a low-power mode and a Operating Range of 3.6 V to 48 V programmable voltage supervisor. Integrated input • Asynchronous Switch-Mode Regulator With voltage-line feed-forward topology improves line External Components (L and C), Load Current up transient regulation of the voltage-mode buck to 3 A (max.) regulator. The regulator has a cycle-by-cycle current limit. Pulse-skip mode operation under no load • 0.8 V ± 1.5% Voltage Reference reduces the supply current to 65 μA. Using the • 200-kHz to 2.2-MHz Switching Frequency enable pin reduces the supply shutdown current to • High-Voltage-Tolerant Enable Input for ON/OFF 1 μA. State An open-drain reset signal indicates when the • Soft Start on Enable Cycle nominal output drops below the threshold set by an • Slew-Rate Control on Internal Power Switch external resistor-divider network. A soft-start capacitor controls the output voltage start-up ramp. • External Clock Input for Synchronization The device activates an internal undervoltage • Pulse-Skip Mode (PFM) During Light Output shutdown when the input supply ramps down to Loads With Quiescent Current = 65 μA Typical 2.6 V. (LPM Operation) Frequency foldback operation protects the device • External Compensation for Wide-Bandwidth Error during an overload conditions on the output. The Amplifier device also has thermal shutdown protection due to • Internal Undervoltage Lockout, UVLO excessive power dissipation. • Programmable Reset Power-On Delay The B-revision has an improved leakage current • Reset-Function Filter Time for Fast Negative parameter, and improved discharged function while in Transients disable mode. • Programmable Overvoltage Output Monitoring Device Information(1) • Programmable Undervoltage Output Monitoring, PART NUMBER PACKAGE BODY SIZE (NOM) Issuance of Reset if Output Falls Below Threshold TPS54362-Q1 HTSSOP (20) 6.50 mm × 4.40 mm • Thermal Shutdown During Excessive Power (1) For all available packages, see the orderable addendum at Dissipation the end of the datasheet. • Switch Current-Limit Protection Simplified Schematic • Short-Circuit and Overcurrent Protection of FET • Junction Temperature Range: –40°C to 150°C • 20-Pin HTSSOP PowerPAD™ Package • Qualified for Automotive Applications 1 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. |
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