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MAX8939A Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX8939A Datasheet(HTML) 6 Page - Maxim Integrated Products |
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6 / 44 page  6 ______________________________________________________________________________________ System Power Management for Mobile Handset ELECTRICAL CHARACTERISTICS (continued) (VBATT = 3.7V, VCHG_IN = 5.0V, circuit of Figure 1, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) PARAMETER CONDITIONS MIN TYP MAX UNITS OUT1 Voltage Accuracy 500mA load TA = +25NC -3 +3 % TA = +85NC -4 +4 Maximum Output Current VBATT R 3.2V, VOUT1 = 5.0V 550 700 mA nFET Current Limit 2.0 A Line Regulation VBATT = 2.9V to 4.2V 0.1 %/V Load Regulation 0 to 500mA load 0.5 %/A LX1 nFET On-Resistance LX1 to PGND1, ILX1 = 200mA 0.1 0.2 I LX1 pFET On-Resistance LX1 to OUT1, ILX1 = -200mA 0.15 0.3 I LX1 Leakage VLX1 = 5.5V TA = +25NC 0.1 5 F A TA = +85NC 1 Switching Frequency 1.8 2 2.2 MHz Maximum Duty Cycle 65 75 % Minimum Duty Cycle 8 % COMP Discharge Resistance During shutdown or UVLO 220 I VIBRATOR Programmable Output Voltage OUTVIB 1mA at VBATT = VINVIB = 5.5V, 150mA at VBATT = VINVIB = 3.4V, default value 3 V Output Current 200 mA Current Limit VOUTVIB = 0V 400 600 mA Dropout Voltage ILOAD = 135mA, TA = +25NC 150 300 mV Line Regulation 3.4V P VBATT = VINVIB < 5.5V, ILOAD = 100mA 2.2 mV Load Regulation 1mA < ILOAD < 200mA 25 mV Power-Supply Rejection D VINVIB/DVOUTVIB f = 10Hz to 10kHz, ILOAD = 30mA 40 dB Output Noise 100Hz to 100kHz, ILOAD = 30mA 65 F VRMS Discharge Time Constant TOFF 90% to 5%, C = 1FF 0.1 ms Active Stop nFET on-resistance 1 I Active Brake on Shutdown nFET on duration 85 ms LDO1 Output Voltage Accuracy ILOAD = 1mA default 2.9V setting 2.813 2.9 2.987 V Maximum Output Current 400 mA Current Limit VLDO1 = 0V 600 mA Dropout Voltage ILOAD = 200mA 200 400 mV Line Regulation 3.4V P VBATT P 5.5V, ILOAD = 100mA 2.4 mV Load Regulation 50FA < ILOAD < 200mA 25 mV Power-Supply Rejection D VLDO1/DVBATT f = 10Hz to 10kHz, ILOAD = 30mA 60 dB Output Noise Voltage (RMS) 100Hz to 100kHz, ILOAD = 30mA 50 F VRMS Ground Current ILOAD = 500FA 21 F A Shutdown Discharge Time TOFF 90% to 10%, C = 4.7FF 1 ms Shutdown Output Impedance 50 80 I |
Similar Part No. - MAX8939A |
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Similar Description - MAX8939A |
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