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TPS62112 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS62112 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 28 page  TPS62110, TPS62111 TPS62112, TPS62113 SLVS585A – JULY 2005 – REVISED FEBRUARY 2009 .................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) VI = 12 V, VO = 3.3 V, IO = 600 mA, EN = VI, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OSCILLATOR fS Oscillator frequency 900 1000 1100 kHz f(SYNC) Synchronization range CMOS-logic clock signal on SYNC pin 800 1400 kHz VIH SYNC high-level input voltage 1.5 V VIL SYNC low-level input voltage 0.3 V Ilkg SYNC input leakage current SYNC = GND or VIN 0.01 0.2 µA SYNC trip-point hysteresis 170 mV SYNC input current 0.6 V ≤ V(SYNC) ≤ 4 V 10 20 µA Duty cycle of external clock signal 30% 90% OUTPUT VO Adjustable output voltage range TPS62110 1.153 16 V VFB Feedback voltage TPS62110 1.153 V FB leakage current TPS62110 10 100 nA VI = 3.1 V to 17 V; Feedback voltage tolerance TPS62110 –2% 2% 0 mA < IO < 1500 mA (2) VI = 3.8 V to 17 V; TPS62111 –3% 3% 0 mA < IO < 1500 mA (2) Fixed output-voltage tolerance(3) VI = 5.5 V to 17 V; TPS62112 –3% 3% 0 mA < IO < 1500 mA (2) VI ≥ 3 V (once undervoltage lockout 100 voltage exceeded) VI ≥ 3.5 V 500 IO Maximum output current mA VI ≥ 4.3 V 1200 VI ≥ 6 V 1500 Current into internal voltage divider for 5 µA fixed voltage versions VI = 7.2 V; VO = 3.3 V; IO = 600 mA η Efficiency 92% VI = 12 V, Vo = 5 V, Io = 600 mA Duty-cycle range for main switches at 1 MHz 10% 100% Minimum ton time for main switch 100 ns Shutdown temperature 145 °C Start-up time IO = 800 mA, VI = 12 V, Vo = 3.3 V 1 ms (2) The maximum output current depends on the input voltage. See the maximum output current for further restrictions on the minimum input voltage. (3) The output voltage accuracy includes line and load regulation over the full temperature range TA = –40°C to 85°C. See the No-Load Operation section in this data sheet. 4 Submit Documentation Feedback Copyright © 2005–2009, Texas Instruments Incorporated Product Folder Link(s): TPS62110 TPS62111 TPS62112 TPS62113 |
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