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TPS650242RHBT Datasheet(PDF) 5 Page - Texas Instruments |
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TPS650242RHBT Datasheet(HTML) 5 Page - Texas Instruments |
5 / 34 page www.ti.com ELECTRICAL CHARACTERISTICS TPS650240 TPS650241 TPS650242 SLVS774 – JUNE 2007 VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDCDC1 STEP-DOWN CONVERTER VVINDCDC1 Input voltage range 2.5 6.0 V IO Maximum output current for TPS650240 Vo = 3.3 V 1000 mA and TPS650242 IO Maximum output current for TPS650241 Vo = 3.3 V 1600 mA ISD Shutdown supply current in VINDCDC1 EN_DCDC1 = GND 0.1 1 μA RDS(ON) P-channel MOSFET on-resistance VINDCDC1 = VGS = 3.6 V 125 261 m Ω ILP P-channel leakage current VINDCDC1 = 6.0 V 2 μA RDS(ON) N-channel MOSFET on-resistance VINDCDC1 = VGS = 3.6 V 130 260 m Ω ILN N-channel leakage current VDS = 6.0 V 7 10 μA ILIMF Forward current limit (P- and N-channel) 2.5 V < VINMAIN < 6.0 V 1.15 1.30 1.39 A for TPS650240 and TPS650242 ILIMF Forward current limit (P- and N-channel) 2.5 V < VINMAIN < 6.0 V 1.75 1.97 2.15 A for TPS650241 fS Oscillator frequency 1.95 2.25 2.55 MHz VDCDC1 Fixed output voltage 2.80 V VINDCDC1 = 3.3 V to 6.0 V; –2% 2% MODE=0 (PWM/PFM) 0 mA ≤ I O ≤ 1.6 A 3.3 V –2% 2% Fixed output voltage 2.80 V VINDCDC1 = 3.7 V to 6.0 V; –1% 1% MODE=1 (PWM) 0 mA ≤ I O ≤ 1.6 A 3.3 V –1% 1% Adjustable output voltage with resistor VINDCDC1 = VDCDC1 +0.3V (min 2.5V) –2% 2% divider at DEFDCDC1 MODE=0 to 6.0V; 0 mA ≤ I O ≤ 1.6 A (PWM/PFM) Adjustable output voltage with resistor VINDCDC1 = VDCDC1 +0.3V (min 2.5V) –1% 1% divider at DEFDCDC1; MODE=1 (PWM) to 6.0V; 0 mA ≤ I O ≤ 1.6 A Line Regulation VINDCDC1 = VDCDC1 + 0.3 V (min. 2.5 0.0 %/V V) to 6.0 V; IO = 10 mA Load Regulation IO = 10 mA to 1.6 A 0.25 %/A TSS Soft start ramp time VDCDC1 ramping from 5% to 95% of 750 μs target value R(L1) Internal resistance from L1 to GND 1 M Ω 5 Submit Documentation Feedback |
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