Datasheet MP2315 (Monolithic Power Systems) - 3
| Manufacturer | Monolithic Power Systems |
| Description | High Efficiency 3A, 24V, 500kHz, with AAM (light load mode), Synchronous Step Down Converter in TSOT23-8 package |
| Pages / Page | 18 / 3 — MP2315 – 24V, 3A SYNC STEP DOWN CONVERTER. ELECTRICAL CHARACTERISTICS. … |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
MP2315 – 24V, 3A SYNC STEP DOWN CONVERTER. ELECTRICAL CHARACTERISTICS. VIN = 12V, TA = 25°C, unless otherwise noted
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MP2315 – 24V, 3A SYNC STEP DOWN CONVERTER ELECTRICAL CHARACTERISTICS
(5)
VIN = 12V, TA = 25°C, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units
Supply Current (Shutdown) IIN VEN = 0V 1 μA V Supply Current (Quiescent) I EN = 2V, VFB = 1V, q 130 180 240 μ AAM=0.5V A HS Switch On Resistance HSRDS-ON VBST-SW=5V 90 mΩ LS Switch On Resistance LSRDS-ON VCC=5V 40 mΩ Switch Leakage SWLKG VEN = 0V, VSW =12V 1 μA Current Limit ILIMIT Duty Cycle=40% 4.5 5.5 6.5 A Oscillator Frequency fSW VFB=750mV 420 500 620 kHz Fold-back Frequency fFB VFB=200mV 0.5 fSW Maximum Duty Cycle DMAX VFB=750mV 90 95 % Minimum On Time (5) TON_MIN 60 ns Sync Frequency Range fSYNC 0.2 2 MHz T Feedback Voltage V A=25ºC FB 779 791 803 mV Feedback Current IFB VFB=820mV 10 50 nA EN Rising Threshold VEN_RISING 1.2 1.4 1.6 V EN Hysteresis VEN_HYS 80 150 220 mV VEN=2V 1.5 2 2.5 μA EN Input Current IEN V MP2393 EN=0 0 50 nA EN Turn Off Delay ENTd-off 6 10 14 μs VIN Under Voltage Lockout INUV Threshold-Rising Vth 3.7 3.9 4.1 V O VIN Under Voltage Lockout INUV Threshold-Hysteresis HYS 550 650 750 mV VCC Regulator VCC 4.65 4.9 5.15 V VCC Load Regulation I RECOMMENDED FOR CC=5mA 0 1 3 % Soft-Start Period TSS 10% to 90% 0.8 1.5 2.2 ms NEW DESIGNS Thermal Shutdown 150 ºC Thermal Hysteresis 20 ºC AAM Source Current IAAM 5.6 6.2 6.8 μA
Notes:
NOT 5) Guaranteed by design REFER T MP2315 Rev. 1.01 www.MonolithicPower.com 3 1/8/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved.
(5)
VIN = 12V, TA = 25°C, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units
Supply Current (Shutdown) IIN VEN = 0V 1 μA V Supply Current (Quiescent) I EN = 2V, VFB = 1V, q 130 180 240 μ AAM=0.5V A HS Switch On Resistance HSRDS-ON VBST-SW=5V 90 mΩ LS Switch On Resistance LSRDS-ON VCC=5V 40 mΩ Switch Leakage SWLKG VEN = 0V, VSW =12V 1 μA Current Limit ILIMIT Duty Cycle=40% 4.5 5.5 6.5 A Oscillator Frequency fSW VFB=750mV 420 500 620 kHz Fold-back Frequency fFB VFB=200mV 0.5 fSW Maximum Duty Cycle DMAX VFB=750mV 90 95 % Minimum On Time (5) TON_MIN 60 ns Sync Frequency Range fSYNC 0.2 2 MHz T Feedback Voltage V A=25ºC FB 779 791 803 mV Feedback Current IFB VFB=820mV 10 50 nA EN Rising Threshold VEN_RISING 1.2 1.4 1.6 V EN Hysteresis VEN_HYS 80 150 220 mV VEN=2V 1.5 2 2.5 μA EN Input Current IEN V MP2393 EN=0 0 50 nA EN Turn Off Delay ENTd-off 6 10 14 μs VIN Under Voltage Lockout INUV Threshold-Rising Vth 3.7 3.9 4.1 V O VIN Under Voltage Lockout INUV Threshold-Hysteresis HYS 550 650 750 mV VCC Regulator VCC 4.65 4.9 5.15 V VCC Load Regulation I RECOMMENDED FOR CC=5mA 0 1 3 % Soft-Start Period TSS 10% to 90% 0.8 1.5 2.2 ms NEW DESIGNS Thermal Shutdown 150 ºC Thermal Hysteresis 20 ºC AAM Source Current IAAM 5.6 6.2 6.8 μA
Notes:
NOT 5) Guaranteed by design REFER T MP2315 Rev. 1.01 www.MonolithicPower.com 3 1/8/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved.