MAX5033 MAXIM [Maxim Integrated Products], MAX5033 Datasheet
MAX5033
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MAX5033 Summary of contents
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... This device includes undervoltage lockout, cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and thermal shutdown. The MAX5033 delivers up to 500mA output current. The output current may be limited by the maximum power dissipation capability of the package. External shutdown is included, featuring 10µA (typ) shutdown current ...
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... I = 500mA, MAX5033B IN LOAD η 24V 500mA, MAX5033C IN LOAD V = 12V 5V 500mA, IN OUT LOAD MAX5033D V = 3.5V 7.5V to 76V, MAX5033A 5.5V 7.5V to 76V, MAX5033B 13V 15V to 76V, MAX5033C 1.3V, MAX5033D 0V 7.5V to 76V ON/OFF IN I (Note 1) LIM 76V 0V ...
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... High-Efficiency, MAXPower ELECTRICAL CHARACTERISTICS (MAX5033_U_ _) (continued +12V +12V ON/OFF OUT Typical Application Circuit.) PARAMETER SYMBOL Switch On-Resistance R PFM Threshold FB Input Bias Current ON/OFF CONTROL INPUT ON/OFF Input-Voltage Threshold V ON/OFF Input-Voltage Hysteresis ON/OFF Input Current OSCILLATOR Oscillator Frequency ...
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... I = 500mA, MAX5033B IN LOAD η 24V 500mA, MAX5033C IN LOAD V = 12V 5V 500mA, IN OUT LOAD MAX5033D V = 3.5V 7.5V to 76V, MAX5033A 5.5V 7.5V to 76V, MAX5033B 13V 15V to 76V, MAX5033C 1.3V, MAX5033D 0V 7.5V to 76V ON/OFF IN I (Note 1) LIM 76V 0V ...
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... TEMPERATURE (°C) LOAD REGULATION (MAX5033CASA 12V) OUT 12.4 12.3 12 24V IN 12.1 12 76V IN 11.9 11.8 0 100 200 300 400 76 I (mA) LOAD EFFICIENCY vs. LOAD CURRENT (MAX5033CASA 12V) OUT 100 24V 76V 48V 500 0 100 200 300 400 LOAD CURRENT (mA) = +25° ...
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... SHUTDOWN CURRENT vs. INPUT VOLTAGE INPUT VOLTAGE (V) MAX5033BASA LOAD-TRANSIENT RESPONSE MAX5033 toc17 OUT A B 400µs/div 100mV/div, AC-COUPLED OUT 200mA/div, 100mA TO 250mA OUT = +25°C. See the Typical A QUIESCENT SUPPLY CURRENT vs. INPUT VOLTAGE 350 ...
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... MAX5033BASA STARTUP WAVEFORM ( MAX5033 toc22 A B 1ms/div 2V/div ON/OFF 2V/div OUT _______________________________________________________________________________________ Step-Down DC-DC Converter Typical Operating Characteristics (continued) MAX5033BASA LX WAVEFORMS MAX5033 toc20 4µs/div A: SWITCH VOLTAGE, 20V/div 48V IN B: INDUCTOR CURRENT, 100mA/div (I = 30mA) OUT MAX5033BASA STARTUP WAVEFORM (I = 0.5A) O ...
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... REF MAX5033 TYPE 3 x1 COMPENSATION V R REF l GND 8 _______________________________________________________________________________________ FUNCTION . For adjustable output voltage (MAX5033D), use an external resistive voltage-divider to OUT to GND with a low-ESR capacitor as close to the device as possible. IN CPFM CILIM OSC RAMP CLK CONTROL LOGIC RAMP THERMAL CPWM SHUTDOWN EAMP ...
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... The MAX5033 also fea- tures undervoltage lockout, hiccup-mode output short- circuit protection, and thermal shutdown. Drive ON/OFF to ground to shut down the MAX5033. Shutdown forces the internal power MOSFET off, turns off all internal circuitry, and reduces the V rent to 10µ ...
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... Use inductors with low DC resistance for LIM higher efficiency. Selecting a Rectifier The MAX5033 requires an external Schottky rectifier as a freewheeling diode. Connect this rectifier close to the device using short leads and short PC board traces. Choose a rectifier with a continuous current rating greater than the highest expected output current. Use a ...
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... AVGIN ) D × × The MAX5033 has an internal soft-start time (t 400µ important to keep the output rise time at startup below t rise time is directly proportional to the output capacitor. ∆ I Use 68µF or lower capacitance at the output to control L − the overshoot below 5%. ...
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... Minimize lead lengths to reduce stray capacitance, trace resistance, and radiated noise. In particular, place the Schottky rectifier diode right next to the 12 ______________________________________________________________________________________ BST 0.1µ MAX5033 FB ON/OFF VD SGND GND 0.1µF EXTERNAL COMPONENTS C = 47µF, Panasonic, EEVFK2A470Q 47µF, Vishay Sprague, 594D476X_016C2T ...
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High-Efficiency, MAXPower Table 2. Typical External Components Selection (Circuit of Figure 2) (continued) V ( OUT OUT 3.3 0 0.5 3.3 0 0.5 ______________________________________________________________________________________ ...
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... Figure 3. Load Temperature Monitoring with ON/ OFF (Requires Accurate ______________________________________________________________________________________ PHONE FAX 843-946-0238 843-626-3123 847-639-6400 847-639-1469 805-446-4800 805-446-4850 858-824-1515 858-824-1525 714-373-7366 714-737-7323 619-661-6835 619-661-1055 847-803-6100 847-390-4405 402-563-6866 402-563-6296 MAX5033 FB BST PTC* ON/OFF SGND GND 0.1µF WEBSITE www.avxcorp.com www.coilcraft.com www.diodes.com www.nichicon.com www.panasonic.com www.sanyo.com www ...
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... Figure 4. Dual-Sequenced DC-DC Converters (Startup Delay Determined by R1/R1’, Ct/Ct’ and Rt/Rt’) ______________________________________________________________________________________ Step-Down DC-DC Converter MAX5033B FB R1 BST ON/OFF SGND GND 0.1µF MAX5033A FB R1* BST ON/OFF Rt' Ct' SGND GND 0.1µF TRANSISTOR COUNT: 4344 PROCESS: BiCMOS L1 V OUT 0.1µ ...
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High-Efficiency, MAXPower Step-Down DC-DC Converter (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages TOP VIEW FRONT VIEW ...
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High-Efficiency, MAXPower (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely ...