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TPS65218B1PHPT Datasheet(PDF) 9 Page - Texas Instruments |
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TPS65218B1PHPT Datasheet(HTML) 9 Page - Texas Instruments |
9 / 87 page 9 TPS65218 www.ti.com SLDS206B – NOVEMBER 2014 – REVISED FEBRUARY 2016 Product Folder Links: TPS65218 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT L Nominal inductor value 1.0 1.5 2.2 µH Tolerance –30% 30% COUT Nominal output capacitor value Ceramic, X5R or X7R 10 100 µF Tolerance –20% 20% DCDC4 (3.3-V BUCK-BOOST) / ANALOG AND I/O VIN_DCDC4 Input voltage soft-start range VIN_BIAS > VUVLO, –40°C to 55°C 3.4 V VIN_BIAS > VUVLO, 56°C to 105°C 3.8 Input voltage operating range VIN_BIAS > VUVLO, –40°C to 105°C 2.7 5.5 V VDCDC4 Output voltage range Adjustable through I2C 1.175 3.4 V DC accuracy 2.7 V ≤ VIN ≤ 5.5 V; 0 A ≤ IOUT ≤ 1 A –2% 2% Output voltage ripple PFM mode enabled; 4.2 V ≤ VIN ≤ 5.5 V; 0 A ≤ IOUT ≤ 1 A COUT = 80 µF 200 mVpp Minimum duty cycle in step- down mode 18% IOUT Continuous output current VIN_DCDC4 = 2.8 V, VOUT = 3.3 V 1.0 A VIN_DCDC4 = 3.6 V, VOUT = 3.3 V 1.3 VIN_DCDC4 = 5.0 V, VOUT = 3.3 V 1.6 IQ Quiescent current Total current from IN_DCDC4 pin; Device not switching, no load 25 50 µA fSW Switching frequency 2400 kHz RDS(ON) High-side FET ON-resistance VIN_DCDC3 = 3.6 V IN_DCDC4 to L4A 166 m Ω L4B to DCDC4 149 Low-side FET ON-resistance VIN_DCDC3 = 3.6 V L4A to GND 142 190 L4B to GND 144 190 ILIMIT Average switch current limit VIN_DCDC4 = 3.6 V 3000 mA VPG Power-good threshold VOUT falling STRICT = 0 88.5% 90% 91.5% STRICT = 1 95% 95.5% 96% Hysteresis VOUT rising STRICT = 0 3.8% 4.1% 4.4% STRICT = 1 0.25% Deglitch VOUT falling STRICT = 0 1 ms STRICT = 1 50 µs VOUT rising STRICT = 0 10 STRICT = 1 10 Time-out 5 ms VOV Overvoltage detection threshold(2) VOUT rising 104% 104.5% 105% Hysteresis VOUT falling 0.25% Deglitch VOUT rising 50 µs IINRUSH Inrush current VIN_DCDC4 = 3.6 V; COUT = 10 to 100 µF 500 mA RDIS Discharge resistor 150 250 350 Ω L Nominal inductor value 1.2 1.5 2.2 µH Tolerance –30% 30% COUT Nominal output capacitor value Ceramic, X5R or X7R 40 100 µF Tolerance –20% 20% |
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