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TPS65022 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS65022 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 45 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS65022 SLVS667 – JULY 2006 VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, T A = –40°C to 85°C, typical values are at T A = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDCDC2 STEP-DOWN CONVERTER VI Input voltage range, VINDCDC2 2.5 6 V IO Maximum output current 1000 mA I(SD) Shutdown supply current in VINDCDC2 DCDC2_EN = GND 0.1 1 µA rDS(on) P-channel MOSFET on-resistance VINDCDC2 = V(GS) = 3.6 V 140 300 m Ω Ilkg P-channel leakage current VINDCDC2 = 6 V 2 µA rDS(on) N-channel MOSFET on-resistance VINDCDC2 = V(GS) = 3.6 V 150 297 m Ω Ilkg N-channel leakage current V(DS) = 6 V 7 10 µA ILIMF Forward current limit (P- and N-channel) 2.5 V < VINDCDC2 < 6 V 1.4 1.55 1.7 A fS Oscillator frequency 1.3 1.5 1.7 MHz VINDCDC2 = 2.5 V to 6 V; 1.8 V –2% 2% 0 mA ≤ I O ≤ 1 A Fixed output voltage FPWMDCDC2=0 VINDCDC2 = 2.8 V to 6 V; 2.5 V –2% 2% 0 mA ≤ I O ≤ 1 A VINDCDC2 = 2.5 V to 6 V; 1.8 V –2% 2% 0 mA ≤ I O ≤ 1 A Fixed output voltage FPWMDCDC2=1 VINDCDC2 = 2.8 V to 6 V; 2.5 V –1% 1% 0 mA ≤ I O ≤ 1 A Adjustable output voltage with resistor VINDCDC2 = VDCDC2 + 0.3 V (min 2.5 V) –2% 2% divider at DEFDCDC2 FPWMDCDC2=0 to 6 V; 0 mA ≤ I O ≤ 1 A Adjustable output voltage with resistor VINDCDC2 = VDCDC2 + 0.3 V (min 2.5 V) –1% 1% divider at DEFDCDC2; FPWMDCDC2=1 to 6 V; 0 mA ≤ I O ≤ 1 A VINDCDC2 = VDCDC2 + 0.3 V (min. 2.5 V) Line Regulation 0 %/V to 6 V; IO = 10 mA Load Regulation IO = 10 mA to 1 mA 0.25 %/A VDCDC2 ramping from 5% to 95% of target Soft start ramp time 750 µs value Internal resistance from L2 to GND 1 M Ω VDCDC2 discharge resistance DCDC2 discharge =1 300 Ω 7 Submit Documentation Feedback |
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