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MAX1790EUAMAXINN/a12146avaiLow-Noise Step-Up DC-DC Converters
MAX8715EUAMAXIMN/a4200avaiLow-Noise Step-Up DC-DC Converters
MAX8715EUAMAXIM ?N/a11avaiLow-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 ..
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 ..
MAX4619CUE+ ,High-Speed, Low-Voltage, CMOS Analog Multiplexers/SwitchesFeaturesThe MAX4617/MAX4618/MAX4619 are high-speed, low- ♦ Fast Switching Times 15ns tvoltage, CMOS ..
MAX4619EPE ,High-Speed / Low-Voltage / CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX4619ESE ,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 ..
MAX4619ESE+ ,High-Speed, Low-Voltage, CMOS Analog Multiplexers/SwitchesApplications♦ Low Distortion: <0.017% (600) ΩBattery-Operated Equipment_______________Ordering Info ..
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 ..


MAX1790EUA-MAX8715EUA
Low-Noise Step-Up DC-DC Converters
General Description
The MAX1790/MAX8715 boost converters incorporate
high-performance (at 1.2MHz), current-mode, fixed-fre-
quency, pulse-width modulation (PWM) circuitry with a
built-in 0.21Ω/0.15Ωn-channel MOSFET to provide a high-
ly efficient regulator with fast response.
High switching frequency (640kHz or 1.2MHz selectable)
allows easy filtering and faster loop performance. An
external compensation pin provides the user flexibility in
determining loop dynamics, allowing the use of small, low
equivalent-series-resistance (ESR) ceramic output capaci-
tors. The device can produce an output voltage as high as
12V from an input as low as 2.6V.
Soft-start is programmed with an external capacitor, which
sets 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 µMAX®
package. The ultra-small package and high switching fre-
quency allow the total solution to be less than 1.1mm high.
Applications

LCD Displays
PCMCIA Cards
Portable Applications
Hand-Held Devices
Features
90% EfficiencyAdjustable Output from VINto 12V1.6A, 0.21Ω, 14V Power MOSFET (MAX1790)2.4A, 0.15Ω, 14V Power MOSFET (MAX8715)+2.6V to +5.5V Input RangePin-Selectable 640kHz or 1.2MHz Switching
Frequency
0.1µA Shutdown CurrentProgrammable Soft-StartSmall 8-Pin µMAX Package
MAX1790/MAX8715Convertersypical Operating Circuit
Pin Configuration
Ordering Information

µMAX is a registered trademark of Maxim Integrated Products,
Inc.
+ Denotes lead-free package.
MAX1790/MAX8715
Low-Noise Step-Up DC-DCConverters
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
LX to GND..............................................................-0.3V to +14V
IN, SHDN, FREQ, FB to GND................................-0.3V to +6.2V
SS, COMP to GND.......................................-0.3V to (VIN+ 0.3V)
RMS LX Pin Current..............................................................1.2A
Continuous Power Dissipation (TA= +70°C)
8-Pin µMAX (derate 4.1mW/°C above +70°C).............330mW
Operating Temperature Range
MAX1790EUA/MAX8715EUA........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX1790/MAX8715
Low-Noise Step-Up DC-DCConverters
ELECTRICAL CHARACTERISTICS

(VIN
ELECTRICAL CHARACTERISTICS (continued)
MAX1790/MAX8715
Low-Noise Step-Up DC-DCConverters
ELECTRICAL CHARACTERISTICS (continued)

(VIN
Note 2:
Specifications to -40°C are guaranteed by design and not production tested.
Typical Operating Characteristics
(Circuit of Figure 1, VIN= 3.3V, fOSC= 640kHz, TA= +25°C, unless otherwise noted.)
MAX1790/MAX8715
Low-Noise Step-Up DC-DCConverters
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN= 3.3V, fOSC= 640kHz, TA= +25°C, unless otherwise noted.)
MAX1790/MAX8715
Low-Noise Step-Up DC-DCConverters
MAX1790/MAX8715
Low-Noise Step-Up DC-DCConverters
Typical Operating Characteristics (continued)

(Circuit of Figure 1, VIN= 3.3V, fOSC= 640kHz, TA= +25°C, unless otherwise noted.)
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