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TPS54362AQPWPRQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54362AQPWPRQ1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 35 page I - Load Current - A L 60% 65% 70% 75% 80% 85% 90% 0 0.5 1 1.5 2 2.5 3 V = 12 V, VReg = 5 V, Fsw = 500 kHz, L = 22 H C = 100 F, T = 25 C IN O A m m o Rslew = 5kW Rslew = 35kW I - Load Current - A L 60% 65% 70% 75% 80% 85% 95% 0 0.5 1 1.5 2 2.5 3 VReg = 5 V, Fsw = 500 kHz, L = 22 H C = 100 F Rslew = 5 k m m W, O T = 25 C A o V = 6 V IN V = 20 V IN 90% OV_TH RST_TH COMP SS VSENSE PH BOOT VReg Rslew Vreg VIN LPM VIN EN SYNC nRST GND RT Cdly Supply TPS54362 TPS54362-Q1, TPS54362A-Q1 www.ti.com SLVS845D – MARCH 2009 – REVISED OCTOBER 2011 3A, 60V STEP DOWN DC/DC CONVERTER WITH LOW Iq Check for Samples: TPS54362-Q1, TPS54362A-Q1 1 FEATURES • Reset Function Filter Time for Fast Negative Transients 2 • Withstands Transients up to 60V With an • Programmable Overvoltage Output Monitoring Operating Range of 3.6V to 48V • Programmable Undervoltage Output • Asynchronous Switch Mode Regulator With Monitoring, Issuance of Reset if Output Falls External Components (L and C), Load Current Below Threshold up to 3A (max) • Thermal Shutdown During Excessive Power • 0.8V ± 1.5% Voltage Reference Dissipation • 200kHz to 2.2MHz Switching Frequency • Switch Current Limit Protection • High Voltage Tolerant Enable Input for ON/OFF • Short Circuit and Overcurrent Protection of State FET • Soft Start on Enable Cycle • Junction Temperature Range: –40°C to 150°C • Slew Rate Control on Internal Power Switch • Package: 20-pin HTSSOP PowerPAD ™ • External Clock Input for Synchronization • Qualified for Automotive Applications • Pulse Skip Mode (PFM) During Light Output Loads With Quiescent Current = 65 μA Typical APPLICATIONS (LPM Operation) • Automotive Telematics • External Compensation for Wide Bandwidth Error Amplifier • Navigation systems • Internal Undervoltage Lock Out UVLO • In-Dash Instrumentation • Programmable Reset Power on Delay • Battery Powered Applications DESCRIPTION The TPS54362/TPS54362A is a step down switch mode power supply with voltage supervisor. Integrated input voltage line feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a cycle-by cycle current limit. A pulse skip mode operation under no load reduces the supply current to 65 μA. Using the enable pin, the supply shutdown current is reduced to 1μA. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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