MAX15032 Maxim Integrated Products, MAX15032 Datasheet
MAX15032
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MAX15032 Summary of contents
Page 1
... A high-voltage internal lateral DMOS power switch allows this device to boost output volt- ages up to 36V. The MAX15032 features a shutdown mode to save power. The MAX15032 is available in a small thermally enhanced 3mm x 3mm 8-pin TDFN package and is specified for operation over the -40° ...
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Output, 600mW PWM Step-Up DC-DC Converter ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +12V LX to PGND ............................................................-0.3V to +40V FB to GND ..............................................................-0.3V to +12V SHDN to GND ..............................................-0. GND .............................................................-0.3V to ...
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Output, 600mW PWM ELECTRICAL CHARACTERISTICS (continued +3.3V +3.3V 10µF, PGND = GND = 0V, T SHDN IN IN are +25°C. See the Typical Operating Circuit .) (Note 2) A ...
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... TEMPERATURE (°C) SWITCHING WAVEFORMS V SHDN 2V/div V OUT 10V/div 1μs/div 110 125 MAX15032 toc12 V OUT (AC-COUPLED) 50mV/div V LX 20V/div I L 500mA/div I = 20mA OUT ...
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... V = 3.3V IN 29.65 29.60 29.55 29. LOAD CURRENT (mA) _______________________________________________________________________________________ 500kHz, 36V Output, 600mW PWM Step-Up DC-DC Converter Typical Operating Characteristics (continued) = 10µ OUT LINE-TRANSIENT RESPONSE MAX15032 toc14 I OUT OUT 2ms/div LX LEAKAGE CURRENT vs. TEMPERATURE 36V -40 -25 - ...
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... Do not use as the main GND connection REF GND -C +C CHARGE CN PUMP CP (DOUBLER) IN UVLO 6 _______________________________________________________________________________________ FUNCTION . IN SOFT- START CLK V REF OSCILLATOR 500kHz BIAS AND REFERENCE SHDN Pin Description Functional Diagram SWITCH CONTROL N LOGIC SWITCH CURRENT SENSE THERMAL SHUTDOWN MAX15032 ) to OUT LX PGND ...
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... The MAX15032 operates either from +2.7V to +5.5V or from +5.5V to +11V. For +2.7V to +5.5V operation, an internal charge pump with an external 10nF ceramic capacitor is used. The MAX15032 also features a shut- down logic input to disable the device and reduce its standby current to 0.5µA (max). The MAX15032 operates in discontinuous mode in order to reduce the switching noise caused by the reverse recovery charge of the rectifier diode ...
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... LIM-LX(MAX) resistance (DCR) should be below 0.1Ω for reasonable efficiency. Due to the high switching frequency of the MAX15032, inductors with a ferrite core or equivalent are recommended to minimize core losses. Table 1 shows a list of vendors with 4.7µH inductor parts. Table 1. Inductor Vendors VENDOR ...
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... LX and FB with a small 22pF capacitor from FB to GND can be used. Use an internal PCB layer for GND as an EMI shield to keep radiated noise away from the device, feedback dividers, and bypass capacitors. L1 4.7μ 1A/40V SHDN MAX15032 PGND 10nF CN GND ⎡ × ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products ...