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MAX15023 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX15023 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 28 page Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VIN = 12V, RT = 33kΩ, CVCC = 4.7µF, CIN = 1µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CURRENT LIMIT/HICCUP Cycle-by-Cycle, Low-Side, Source Peak Current-Limit Threshold Adjustment Range Source peak limit = VLIM_/10 30 300 mV LIM_ Reference Current ILIM_ VLIM_ = 0.3V to 3V, TA = +25°C 45 50 55 µA LIM_ Reference Current TC VLIM_ = 0.3V 2400 ppm/°C Number of Consecutive Current- Limit Events to Hiccup 7 Events Hiccup Timeout Out of soft-start 7936 Switching cycles Cycle-by-Cycle, Low-Side, Sink Peak Current-Limit Sense Voltage VLIM_/ 20 V BOOST Boost Switch Resistance VIN = VCC = 5.2V, IBST_ = 10mA 4.5 8 Ω POWER-GOOD OUTPUTS VFB_ rising 88.5 92.5 96.5 PGOOD_ Threshold VFB_ falling 85.5 89.5 93.5 % VFB(NOMINAL) PGOOD_ Output Leakage ILEAK_PGD VPGOOD_ = 28V, VEN_ = 5V, VFB_ = 0.8V 1 µA PGOOD_ Output Low Voltage VPGOOD_L IPGOOD_ = 2mA, EN_ = SGND 0.4 V THERMAL SHUTDOWN Thermal Shutdown Threshold +150 °C Thermal Shutdown Hysteresis Temperature falling 20 °C Note 3: All Electrical Characteristics limits over temperature are 100% tested at room temperature and guaranteed by design over the specified temperature range. Note 4: Select RT as Rk fkHz has a T SW () (( )) ( . Ω= 24806 24806 1 0663 1 1 farad unit). |
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