MAX1760EUB Fast Delivery |IC PHOENIX CO.,LIMITED

MAX1760EUB ,0.8A, Low-Noise, 1MHz, Step-Up DC-DC ConverterELECTRICAL CHARACTERISTICS(CLK/SEL = ON = FB = PGND = GND, ISET = REF, OUT = POUT, V = 3.6V, T = 0° ..
MAX1760EUB ,0.8A, Low-Noise, 1MHz, Step-Up DC-DC ConverterApplicationsDigital Cordless Phones PCS PhonesWireless Handsets Hand-Held InstrumentsPalmtop Comput ..
MAX1760EUB ,0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converterapplications requiring PWM Synchronous Rectified Topologythe longest possible battery life. Low- ..
MAX1760EUB+ ,0.8A, Low-Noise, 1MHz, Step-Up DC-DC ConverterApplicationsU10-2MAX1760HEUB 10 µMAX HighDigital Cordless Phones PCS Phones*EP = Exposed paddle.Wir ..
MAX1760EUB+ ,0.8A, Low-Noise, 1MHz, Step-Up DC-DC ConverterApplicationsU10-2MAX1760HEUB 10 µMAX HighDigital Cordless Phones PCS Phones*EP = Exposed paddle.Wir ..
MAX1760EUB+T ,0.8A, Low-Noise, 1MHz, Step-Up DC-DC ConverterELECTRICAL CHARACTERISTICS(CLK/SEL = FB = PGND = GND, ISET = REF, OUT = POUT, V = 3.6V, T = 0°C to ..
MAX4583EPE ,Low-voltage, CMOS analog switch (three SPDT switches).ELECTRICAL CHARACTERISTICS—Dual Supplies(V = 4.5V to 5.5V, V = -4.5V to -5.5V, V = 2.4V, V = 0.8V, ..
MAX4583ESE ,Low-Voltage, CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX4583ESE ,Low-Voltage, CMOS Analog Multiplexers/SwitchesMAX4581/MAX4582/MAX458319-1328; Rev 1; 10/99Low-Voltage, CMOS AnalogMultiplexers/Switches__________ ..
MAX4583ESE ,Low-Voltage, CMOS Analog Multiplexers/SwitchesFeaturesThe MAX4581/MAX4582/MAX4583 are low-voltage, ♦ Pin Compatible with Industry-Standard CMOS a ..
MAX4583ESE+ ,Low-Voltage, CMOS Analog Multiplexers/SwitchesGeneral Description ________
MAX4583ESE+T ,Low-Voltage, CMOS Analog Multiplexers/SwitchesGeneral Description ________

MAX1760EUB
0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter
General Description
The MAX1760 is a high-efficiency, low-noise, step-up
DC-DC converter intended for use in battery-powered
wireless applications. It maintains exceptionally low qui-
escent supply current (100µA) despite its high 1MHz
operating frequency. Small external components and a
tiny 10-pin µMAX package make this device an excel-
lent choice for small hand-held applications requiring
the longest possible battery life.
The MAX1760 uses a synchronous-rectified pulse-
width-modulation (PWM) boost topology to generate
2.5V to 5.5V outputs from a wide range of input
sources, such as 1 to 3 alkaline or NiCd/NiMH cells or a
single lithium-ion (Li+) cell. Maxim's proprietary Idle-
Mode™ circuitry significantly improves efficiency at
light load currents while smoothly transitioning to fixed-
frequency PWM operation at higher load currents to
maintain excellent full-load efficiency.
Low-noise, forced PWM mode is available for applica-
tions requiring constant-frequency operation at all load
currents. The MAX1760 may also be synchronized to
an external clock to protect sensitive frequency bands
in communications equipment. Analog soft-start and
adjustable current limit permit optimization of efficiency,
external component size, and output voltage ripple.
Applications
Digital Cordless PhonesPCS Phones
Wireless HandsetsHand-Held Instruments
Palmtop ComputersPersonal Communicators
Two-Way Pagers
FeaturesUp to 94% Efficiency0.7V to 5.5V Input RangeUp to 800mA OutputFixed 3.3V Output (or adj from 2.5V to 5.5V)PWM Synchronous Rectified TopologyLow-Noise, Constant Frequency Operation (1MHz)0.1µA Logic-Controlled ShutdownSynchronizable Switching FrequencyAdjustable Current LimitAdjustable Soft-Start10-Pin µMAX Package
MAX1760
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
Typical Operating Circuit
19-1660; Rev 1; 1/01
Pin Configuration
Ordering Information
MAX1760
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(CLK/SEL = ON= FB = PGND = GND, ISET = REF, OUT = POUT, VOUT= 3.6V, TA= 0°C to +85°C. Typical values are at TA=
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.
ON, OUT, CLK/SEL to GND.....................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
LX to PGND............................................-0.3V to (VPOUT+ 0.3V)
POUT to OUT......................................................................±0.3V
REF, FB, ISET, POUT to GND...................-0.3V to (VOUT+ 0.3V)
Continuous Power Dissipation (TA= +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
MAX1760
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
ELECTRICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (continued)
(CLK/SEL = ON= FB = PGND = GND, ISET = REF, OUT = POUT, VOUT= 3.6V, TA= 0°C to +85°C. Typical values are at TA= +25°C
MAX1760
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
Note 1:Operating voltage—since the regulator is bootstrapped to the output, once started the MAX1760 will operate down
to 0.7V input.
Note 2:Startup is tested with the circuit shown in Figure 6.
Note 3:Defines maximum step-up ratio.
Note 4:The regulator is in startup mode until this voltage is reached. Do not apply full load current until the output exceeds 2.3V.
Note 5:Supply current into the OUT pin. This current correlates directly to the actual battery-supply current, but is reduced in
value according to the step-up ratio and efficiency.
Note 6:ONhas a hysteresis of approximately 0.15 ×VOUT.
Note 7:Specifications to -40°C are guaranteed by design and not production tested.
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(Circuit of Figure 2, VIN= 2.4V, VOUT= 3.3V, TA= +25°C, unless otherwise noted.)
MAX1760
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
NO-LOAD BATTERY CURRENT
vs. INPUT VOLTAGE
MAX1760-04
INPUT VOLTAGE (V)
INPUT CURRENT (mA)
TOTAL SHUTDOWN CURRENT
(ILX + IOUT) vs. INPUT VOLTAGE
MAX1760-05
INPUT VOLTAGE (V)
SHUTDOWN CURRENT (nA)
INTERNAL OSCILLATOR
FREQUENCY vs. TEMPERATURE
MAX1760-06
TEMPERATURE (°C)
FREQUENCY (MHz)
STARTUP VOLTAGE
vs. OUTPUT CURRENT
MAX1760-07
OUTPUT CURRENT (A)
STARTUP VOLTAGE (V)
PEAK INDUCTOR CURRENT vs. VISET
MAX1760-08
VISET (V)
PEAK INDUCTOR CURRENT (A)
HEAVY-LOAD SWITCHING WAVEFORMS
MAX1760-09
A = LX PIN, 5V/div
B = INDUCTOR CURRENT, 200mA/div
C = OUTPUT RIPPLE, 50mV/div AC-COUPLED
t = 400ns/div
LIGHT-LOAD SWITCHING WAVEFORMS
MAX1760-10
t = 400ns/div
A = LX PIN, 5V/div
B = INDUCTOR CURRENT, 200mA/div
LOAD-TRANSIENT RESPONSE
MAX1760-11
t = 200ms/div
VIN = 1.1V, VOUT = 3.3V, IOUT = 0 AND 0.2A
A = IOUT, 100mA/div
B = VOUT, 50mV/div, AC-COUPLED
LINE-TRANSIENT RESPONSE
MAX1760-12
400µs/div
VIN = 2.4V TO 1.4V, IOUT = 70mA
A = VIN, 1V/div
B = VOUT, 5mA/div, AC-COUPLED
Typical Operating Characteristics (continued)
(Circuit of Figure 2, VIN= 2.4V, VOUT= 3.3V, TA= +25°C, unless otherwise noted.)
MAX1760
0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
NOISE SPECTRUM
MAX1760-1310.1
FREQUENCY (MHz)
NOISE (mV
RMS
TURN-ON WAVEFORMS
NO SOFT-START COMPONENTS
MAX1760-14
t = 2ms/div
A = ON, 5V/div
B = INPUT CURRENT, 500mA/div
C = VOUT, 2V/div
SOFT-START WAVEFORMS
RSS = 500kΩ, CSS = 0.1µF
MAX1760-15
2.00ms/div
A = ON, 5V/div
B = INPUT CURRENT, 100mA/div
C = VOUT, 2V/div
Pin Descriptionypical Operating Characteristics (continued)
(Circuit of Figure 2, VIN= 2.4V, VOUT= 3.3V, TA= +25°C, unless otherwise noted.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX1760EUB	MAX	N/a	235	avai	0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter
MAX1760EUB	MAXIM	N/a	35	avai	0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter
MAX1760EUB	MAXIM ?	N/a	87	avai	0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter