Product Summary
The MAX618EEE CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500μA, which allows efficiency up to 93%. A fast 250kHz switching frequency of MAX618EEE allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618EEE to accommodate a wide range of input and output voltages with a simple, single compensation capacitor.
Parametrics
MAX618EEE absolute maximum ratings: (1)IN to GND: -0.3V to +30V; (2)LX to GND: -0.3V to +30V; (3)VL to GND: -0.3V to +6V; (4)SHDN, COMP, FB to GND: -0.3V to (VL + 0.3V); (5)PGND to GND: ±0.3V; (6)Continuous Power Dissipation (TA = +70℃), 16-Pin QSOP (derate 15mW/℃ above +70℃): 1W; (7)Operating Temperature Range: -40℃ to +85℃; (8)Junction Temperature: +150℃; (9)Storage Temperature Range: -65℃ to +150℃; (10)Lead Temperature (soldering, 10sec): +300℃.
Features
MAX618EEE features: (1)Adjustable Output Voltage Up to +28V; (2)Up to 93% Efficiency; (3)Wide Input Voltage Range (+3V to +28V); (4)Up to 500mA Output Current at +12V; (5)500μA Quiescent Supply Current; (6)3μA Shutdown Current; (7)250kHz Switching Frequency; (8)Small 1W 16-Pin QSOP Package.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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MAX618EEE |
Maxim Integrated Products |
DC/DC Switching Converters 28V PWM Step-Up DC/DC Converter |
Data Sheet |
Negotiable |
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MAX618EEE/GG8 |
Maxim Integrated Products |
DC/DC Switching Converters |
Data Sheet |
Negotiable |
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MAX618EEE-T |
Maxim Integrated Products |
DC/DC Switching Converters 28V PWM Step-Up DC/DC Converter |
Data Sheet |
Negotiable |
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MAX618EEE+T |
Maxim Integrated Products |
DC/DC Switching Converters 28V PWM Step-Up DC/DC Converter |
Data Sheet |
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MAX618EEE+ |
Maxim Integrated Products |
DC/DC Switching Converters 28V PWM Step-Up DC/DC Converter |
Data Sheet |
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