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MAX14690 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX14690 Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 47 page  (VCHGIN = 5.0V, VBAT = 3.7V, TA = -40°C to +85°C, all registers in their default state, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS GLOBAL SUPPLY CURRENT (L_IN Connected to SYS) Charger Input Current ICHG All functions disabled 0.26 mA Power on, VCHGIN = 5V SYS switch closed, buck regulators in burst mode, LDO1 enabled, ISYS = 0A, IB_OUT = 0A, IL_OUT = 0A 2 BAT Input Current IBAT Power off, VCHGIN = 0V, SYS switch open 0.95 µA Power on, VCHGIN = 0V SYS switch closed, 2x buck regulators in Burst mode, LDOs disabled. ISYS = 0A, IB_OUT = 0A 3 Power on, VCHGIN = 0V SYS switch closed, 2x buck regulators in Burst mode, LDO1 enabled, ISYS = 0A, IB_OUT = 0A, IL_OUT = 0A 3.5 Power on, VCHGIN = 0V SYS switch closed, 2x buck regulators in burst mode, 3x LDOs enabled, ISYS = 0A, IB_OUT = 0A, IL_OUT =0A 4.6 BUCK REGULATOR 1 (VSYS = +3.7V, Burst mode operation, L = 2.2µH, C = 10µF, VB1OUT = 1.2V) Input Voltage VIN_BUCK1 Input voltage = VSYS 2.7 5.5 V Output Voltage VOUT_BUCK1 25mV step resolution (Note 2) 0.8 1.8 V Quiescent Supply Current IQ_BUCK1 Burst mode, IOUT = 0mA (Note 3) 0.915 2 µA IPWM1_BUCK1 FPWM mode, L = 4.7µH (ESR = 0.6Ω, 2MHz RAC = 2.13Ω), IOUT = 0mA 2.5 3.5 mA Output Accuracy ACCBUCK1 IOUT = 1mA (VOUT_BUCK1 > 1V, C > 50µF) -2.6 +2.9 % Load Regulation VERR_BUCK1 From IOUT = 0 to 200mA (VB1OUT = 1.2V average voltage) -3 -1 % Peak-to-Peak Ripple in Burst Mode VPPRIPPLE1 IOUT = 10mA, C = 20µF 25 mV IOUT = 10mA, C = 10µF 43 Maximum Operative Output Current IOUT_BUCK1 200 mA B1OUT Pulldown Current ILEAK_B1OUT VOUT = VSYS 200 350 µA VREG < VOUT < VREG + 0.1V 10 100 nA pMOS On-Resistance RONP_BUCK1 0.22 0.4 Ω nMOS On-Resistance RONN_BUCK1 0.18 0.3 Ω Oscillator Frequency fBUCK1 FPWM mode 1.78 2 2.24 MHz MAX14690 PMIC with Ultra-Low IQ Voltage Regulators and Battery Charger for Small Lithium Ion Systems www.maximintegrated.com Maxim Integrated │ 4 Electrical Characteristics |
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