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TPS65020RHA Datasheet(PDF) 6 Page - Texas Instruments |
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TPS65020RHA Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 44 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS65020 SLVS607 – SEPTEMBER 2005 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 VDCDC1 STEP-DOWN CONVERTER VI Input voltage range, VINDCDC1 2.5 6.0 V IO Maximum output current 1200 mA I(SD) Shutdown supply current in VINDCDC1 DCDC1_EN = GND 0.1 1 µA rDS(on) P-channel MOSFET on-resistance VINDCDC1 = V(GS) = 3.6 V 125 261 m Ω Ilkg P-channel leakage current VINDCDC1 = 6 V 2 µA rDS(on) N-channel MOSFET on-resistance VINDCDC1 = V(GS) = 3.6 V 130 260 m Ω Ilkg N-channel leakage current V(DS) = 6 V 7 10 µA Forward current limit (P- and N-channel) 2.5 V < VI(MAIN) < 6 V 1.55 1.75 1.95 A fS Oscillator frequency 1.3 1.5 1.7 MHz VINDCDC1 = 3.3 V to 6 V; 3 V –2% 2% 0 mA ≤ I O ≤ 1.2 A Fixed output voltage FPWMDCDC1=0 VINDCDC1 = 3.6 V to 6 V; 3.3 V –2% 2% 0 mA ≤ I O ≤ 1.2 A VINDCDC1 = 3.3 V to 6 V; 3 V –1% 1% 0 mA ≤ I O ≤ 1.2 A Fixed output voltage FPWMDCDC1=1 VINDCDC1 = 3.6 V to 6 V; 3.3 V –1% 1% 0 mA ≤ I O ≤ 1.2 A Adjustable output voltage with resistor div- VINDCDC1 = VDCDC1 +0.3 V (min 2.5 V) –2% 2% ider at DEFDCDC1 FPWMDCDC1=0 to 6 V; 0 mA ≤ I O ≤ 1.2 A Adjustable output voltage with resistor div- VINDCDC1 = VDCDC1 +0.3 V (min 2.5 V) –1% 1% ider at DEFDCDC1; FPWMDCDC1=1 to 6 V; 0 mA ≤ I O ≤ 1.2 A VINDCDC1 = VDCDC1 + 0.3 V (min. 2.5 V) Line Regulation 0 %/V to 6 V; IO = 10 mA Load Regulation IO = 10 mA to 1200 mA 0.25 %/A VDCDC1 ramping from 5% to 95% of target Soft start ramp time 750 µs value Internal resistance from L1 to GND 1 M Ω VDCDC1 discharge resistance 300 Ω 6 |
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