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预发布
特性
- Designed for Ultra-High Efficiency
- 22mΩ/8mΩ RDS-ON Power MOSFETs
- 94.9% Efficiency from 24VIN to 5VOUT, 10A with 95.6% Peak Efficiency at 6A
- External Bias Input for Improved Efficiency
- 40μA IQ Regulating 24VIN to 3.3VOUT
- 10A Maximum Continuous, 12A Peak Transient
- Output for MAX17639
- Die Temperature Monitoring
- Designed for Low EMI
- Symmetrical Input Voltage Pins
- 400kHz to 2.2MHz Adjustable Switching Frequency with External Clock Synchronization
- 4mm x 4mm 18L-FC2QFN
- Reduces External Components and Total Cost
- No Schottky–Synchronous Operation
- Adjustable Output Range from 0.6V to 90% of VIN
- Programmable Soft-Start and EN/UVLO Threshold
- Operates Reliably in Adverse Industrial Environments
- Built-in Hiccup-Mode Overload Protection
- Built-in Output-Voltage Status Monitoring and Die Temperature Monitoring with RESET/TJ Pin
- High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range
产品详情和应用
The MAX1763x are the high-efficiency, high-voltage, synchronous step-down DC-DC converters with integrated MOSFETs operating over an input voltage range of 3V to 36V. The MAX17636, MAX17638, MAX17639 can deliver up to 6A, 8A, and 10A continuous currents, respectively. Additionally, MAX17639 can support up to 12A peak current. These devices can generate output voltages ranging from 0.6V up to 90% of VIN.
These devices feature a MODE/SYNC pin that can be used to program the device in forced pulse-width modulation (PWM) or switching frequency modulation (SFM) modes of operation and to synchronize the internal clock to an external clock. These devices offer an enable/input undervoltage lockout (EN/UVLO) pin to program the desired input voltage at which the converter turns on/off. These devices also have a soft-start (SS) pin to reduce inrush currents during startup. In addition, these devices feature a RESET/TJ, pin which can be used either to monitor the status of output voltage or die temperature. The die temperature monitor allows the user to directly measure the silicon die temperature instead of relying on theoretical estimation, thus enabling robust, reliable power supply design.
APPLICATIONS
- Factory and Building Automation
- Distributed DC Power Systems
- General Purpose Power Supply
