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TPS53318DQPR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS53318DQPR Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 34 page  TPS53318, TPS53319 www.ti.com SLUSAY8B – JUNE 2012 – REVISED MAY 2013 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) VALUE UNIT MIN MAX VIN (main supply) 1.5 22 VDD 4.5 25 Input voltage range VBST 4.5 28 V VBST(with respect to LL) 4.5 6.5 EN, TRIP, VFB, RF, MODE, ROVP –0.1 6.5 Output voltage range LL –1 27 V PGOOD, VREG –0.1 6.5 Junction temperature range, TJ –40 125 °C ELECTRICAL CHARACTERISTICS Over recommended free-air temperature range, VVDD=12 V (unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN pin power conversion input VVIN 1.5 22 V voltage VVDD Supply input voltage 4.5 25.0 V IVIN(leak) VIN pin leakage current VEN = 0 V 1 µA IVDD VDD supply current TA = 25°C, No load, VEN = 5 V, VVFB = 0.630 V 420 590 µA IVDDSDN VDD shutdown current TA = 25°C, No load, VEN = 0 V 110 µA INTERNAL REFERENCE VOLTAGE VVFB VFB regulation voltage CCM condition(1) 0.600 V TA = 25°C 0.597 0.600 0.603 VVFB VFB regulation voltage 0°C ≤ TA ≤ 85°C 0.5952 0.600 0.6048 V –40°C ≤ TA ≤ 85°C 0.594 0.600 0.606 IVFB VFB input current VVFB = 0.630 V, TA = 25°C 0.01 0.20 µA LDO OUTPUT VVREG LDO output voltage 0 mA ≤ IVREG ≤ 30 mA 4.77 5.00 5.36 V IVREG LDO output current(1) Maximum current allowed from LDO 30 mA VDO Low drop out voltage VVDD = 4.5 V, IVREG = 30 mA 250 mV BOOT STRAP SWITCH VFBST Forward voltage VVREG-VBST, IF = 10 mA, TA = 25°C 0.1 0.2 V IVBSTLK VBST leakage current VVBST = 23 V, VSW = 17 V, TA = 25°C 0.01 1.50 µA DUTY AND FREQUENCY CONTROL tOFF(min) Minimum off-time TA = 25°C 150 260 400 ns VIN = 17 V, VOUT = 0.6 V, fSW = 1 MHz, tON(min) Minimum on-time 35 ns TA = 25 °C (1) SOFT START RMODE = 39 kΩ 0.7 RMODE = 100 kΩ 1.4 Internal soft-start time from tSS ms VOUT = 0 V to 95% of VOUT RMODE = 200 kΩ 2.8 RMODE = 470 kΩ 5.6 OUTPUT VOLTAGE DISCHARGE IDSCHG Output voltage discharge current VEN= 0 V, VSW= 0.5 V 5.0 6.6 9.0 mA (1) Ensured by design. Not production tested. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS53318 TPS53319 |
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