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XRP7704 Datasheet(PDF) 2 Page - Exar Corporation |
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XRP7704 Datasheet(HTML) 2 Page - Exar Corporation |
2 / 31 page XRP7704 REV 1.1.0 Quad-Output Digital PWM Buck Controller ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCCA, VCCD, LDOOUT, GLx, VOUTx…………………….……..6V AVDD, DVDD.……………………………………………………...2.0V VIN1, VIN2…………………..…………………………….….. 22V LXx……………..………………………………………. -1V to 22V Logic Inputs……………………………………………............ 6V BSTx, GHx……...…………………………… ….…………… 27V Storage Temperature……………………..……. -65 °C to 150 °C Thermal Resistance……………………………………... 18 °C/W Lead Temperature (Soldering, 10 sec)…………………..300 °C ELECTRICAL SPECIFICATIONS Unless otherwise specified: Ta=Tj=25°C, 6.5≤VIN1≤20V, 6.5≤VIN2≤20V, ENABLE=HIGH, CGL=CGH=1nF. Those specifications denoted by a ♦ are guaranteed over the full operating temperature range, -40 °C <Tj< 125°C. QUIESCENT CURRENT PARAMETER MIN TYP MAX UNITS CONDITIONS VIN Supply Current in STANDBY 9 mA LDOOUT enabled (no load) No switching converter channels enabled I2C Communication Active Switching Frequency = 400kHz VIN Supply Current in SHUTDOWN 180 µA EN = 0V VIN1 = VIN2 = 12V VIN Supply Current 28 mA 4 channels running GH and GL = 1nF Load each VIN = 12V Switching Frequency = 300KHz VIN Supply Current 50 mA 4 channels running GH and GL=1nF Load each VIN = 12V Switching Frequency = 1MHz BUCK CONTROLLERS PARAMETER MIN TYP MAX UNITS CONDITIONS -20 20 mV ♦ 0.9 <= VOUT <= 2.5V VOUT Regulation Accuracy -40 40 mV ♦ 2.6 <= VOUT <= 5.1V Feedback Resolution 5 mV 0.9 <= VOUT <= 2.5V Feedback Resolution 10 mV 2.6 <= VOUT <= 5.1V VOUT input voltage regulation range 0.9 5.1 V ♦ Programmable range of each channel. VOUT set point resolution 50 mV 0.9 <= VOUT <= 2.5V VOUT set point resolution 100 mV 2.6 <= VOUT <= 5.1V VOUT Input Current 1 µA ♦ 0.9 < VOUT <= 2.5V VOUT Input Resistance 120 kΩ 2.6 <= VOUT <= 5.1V EXAR CONFIDENTIAL. PROPRIETARY. DO NOT DISTRIBUTE OR COPY. 2 |
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