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MAX1790EUA from MAX, MAXIM - Dallas Semiconductor 5520pcs,Low-Noise Step-Up DC-DC Converters
Partno Mfg Dc Qty Available
MAX1790EUA MAX N/a 5520
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ELECTRICAL CHARACTERISTICS(V = SHDN = 3V, FREQ = GND, T = 0°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.)IN A APARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITSInput Supply Range V 2.6 5.5 VINV rising, typical hysteresis is 40mV,INV Undervoltage Lockout UVLO 2.25 2.38 2.52 VINLX remains off below this levelV = 1.3V, not switching 0.18 0.35FBQuiescent Current I mAINV = 1.0V, switching 25FBShutdown Supply Current I SHDN = GND 0.1 10 µAINERROR AMPLIFIERFeedback Voltage V Level to produce V = 1.24V 1.222 1.24 1.258 VFB COMPFB Input Bias Current I V = 1.24V 040 nAFB FBFeedback-Voltage Line Level to produce V = 1.24V,COMP0.05 0.15 %/VRegulation 2.6V < V < 5.5VIN Transconductance g ∆ I = 5µA 70 140 240 µmhosmVoltage Gain A 700 V/VVOSCILLATORFREQ = GND 540 640 740Frequency f kHzOSCFREQ = IN 1000 1220 1500FREQ = GND 79 85 92Maximum Duty Cycle DC %FREQ = IN 84N-CHANNEL SWITCHCurrent Limit (Note 1) I V = 1V, duty cycle = 65% 1.2 1.6 2.3 ALIM FBOn-Resistance R I = 1.2A 0.21 0.5 ΩON LXLeakage Current I V = 12V 0.01 20 µALXOFF LXCurrent-Sense Transresistance R 0.3 0.45 0.65 V/ACSSOFT-STARTReset Switch Resistance 100 ΩCharge Current V = 1.2V 1.5 4 7 µASSCONTROL INPUTSInput Low Voltage V SHDN, FREQ; V = 2.6V to 5.5V 0.3 · V VILIN INInput High Voltage V SHDN, FREQ; V = 2.6V to 5.5V 0.7 · V VIHIN INHysteresis VSHDN, FREQ 0.1 · VINFREQ Pull-Down Current I 1.8 5 9 µAFREQI 0.001 1 µASHDN Input CurrentSHDN2 _______MAX1790MAX1790Low-Noise Step-Up DC-DC ConverterELECTRICAL CHARACTERISTICS (continued)(V = SHDN = 3V, FREQ = GND, T = 0°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.)IN A APARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITSMAX1790 0.30 0.45 0.65Current-Sense Transresistance R V/ACSMAX8715 0.20 0.30 0.43SOFT-STARTReset Switch Resistance 100 ΩCharge Current V = 1.2V 1.5 4 7.0 µASSCONTROL INPUTSInput Low Voltage V SHDN, FREQ 0.3 x V VIL INInput High Voltage V SHDN, FREQ 0.7 x V VIH INHysteresis SHDN, FREQ 0.1 x V VINFREQ Pulldown Current I 1.8 5 9.0 µAFREQSHDN Input Current I 0.001 1µASHDNELECTRICAL CHARACTERISTICS(V = SHDN = 3V, FREQ = GND, T = 0°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.)IN A APARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITSInput Supply Range V 2.6 5.5 VINV rising, typical hysteresis is 40mV,INV Undervoltage Lockout UVLO 2.25 2.38 2.52 VINLX remains off below this levelV = 1.3V, not switching 0.18 0.35FBMAX1790V = 1.0V, switching 2 5FBQuiescent Current I mAINV = 1.3V, not switching 0.21 0.35FBMAX8715V = 1.0V, switching 2.5 5.0FBShutdown Supply Current I SHDN = GND 0.1 10 µAINERROR AMPLIFIERFeedback Voltage V Level to produce V = 1.24V 1.222 1.24 1.258 VFB COMPMAX1790 0 40FB Input Bias Current I V = 1.24V nAFB FBMAX8715 125 190Feedback-Voltage Line Level to produce V = 1.24V,COMP0.05 0.15 %/VRegulation 2.6V < V < 5.5VINMAX1790 70 140 240Transconductance g ΔI = 5µA µSmMAX8715 70 160 240Voltage Gain A 700 V/VVOSCILLATORFREQ = GND540 640 740Frequency f kHzOSCFREQ = IN 1000 1220 1500FREQ = GND 79 85 92Maximum Duty Cycle DC %FREQ = IN 84N-CHANNEL SWITCHV = 1V, MAX1790 1.2 1.6 2.3FBCurrent Limit I duty cycle = ALIMMAX8715 1.8 2.4 3.465% (Note 1)MAX1790 0.21 0.5On-Resistance R ΩONMAX8715 0.15 0.35MAX1790 0.01 20Leakage Current I V = 12V µALXOFF LXMAX8715 5 302 _______MAX1790/MAX8715MAX1790/MAX8715Low-Noise Step-Up DC-DC ConvertersFeaturesThe MAX1790/MAX8715 boost converters incorporate♦ 90% Efficiencyhigh-performance (at 1.2MHz), current-mode, fixed-fre-♦ Adjustable Output from V to 12VINquency, pulse-width modulation (PWM) circuitry with abuilt-in 0.21Ω/0.15Ω n-channel MOSFET to provide a high-♦ 1.6A, 0.21Ω, 14V Power MOSFET (MAX1790)ly efficient regulator with fast response.♦ 2.4A, 0.15Ω, 14V Power MOSFET (MAX8715)High switching frequency (640kHz or 1.2MHz selectable)allows easy filtering and faster loop performance. An ♦ +2.6V to +5.5V Input Rangeexternal compensation pin provides the user flexibility in♦ Pin-Selectable 640kHz or 1.2MHz Switchingdetermining loop dynamics, allowing the use of small, lowFrequencyequivalent-series-resistance (ESR) ceramic output capaci-tors. The device can produce an output voltage as high as♦ 0.1µA Shutdown Current12V from an input as low as 2.6V.♦ Programmable Soft-StartSoft-start is programmed with an external capacitor, which♦ Small 8-Pin µMAX Packagesets the input-current ramp rate. In shutdown mode, cur-rent consumption is reduced to 0.1µA. The MAX1790/®MAX8715 are available in a space-saving 8-pin µMAXpackage. The ultra-small package and high switching fre-Ordering Informationquency allow the total solution to be less than 1.1mm high.µMAX is a registered trademark of Maxim Integrated Products,PART TEMP RANGE PIN-PACKAGEInc.MAX1790EUA -40°C to +85°C 8 µMAXMAX1790/MAX871519-1563; Rev 3; 9/05Low-Noise Step-Up DC-DC Converters

MAX1790EUA ,Low-Noise Step-Up DC-DC ConvertersMAX1790/MAX871519-1563; Rev 3; 9/05Low-Noise Step-Up DC-DC Converters
MAX1790EUA+ ,Low-Noise Step-Up DC-DC ConvertersELECTRICAL CHARACTERISTICS (continued)(V = SHDN = 3V, FREQ = GND, T = 0°C to +85°C, unless otherwis ..
MAX1790EUA+T ,Low-Noise Step-Up DC-DC ConvertersELECTRICAL CHARACTERISTICS(V = SHDN = 3V, FREQ = GND, T = 0°C to +85°C, unless otherwise noted. Typ ..
MAX1790EUA-T ,Low-Noise Step-Up DC-DC ConvertersMAX1790/MAX871519-1563; Rev 3; 9/05Low-Noise Step-Up DC-DC Converters
MAX1791EUB ,High-Efficiency, 10-Pin レMAX, Step-Down Controllers for NotebooksELECTRICAL CHARACTERISTICS(V = 15V, VL enabled, C = 1µF, C = 0.1µF, T = 0 to +85°C, unless otherwis ..
MAX4619EUE ,High-Speed / Low-Voltage / CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX4619EUE+ ,High-Speed, Low-Voltage, CMOS Analog Multiplexers/SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply(V = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , u ..
MAX4619EUE+ ,High-Speed, Low-Voltage, CMOS Analog Multiplexers/SwitchesGeneral Description ________
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