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MP2359 Datasheet(PDF) 2 Page - Monolithic Power Systems |
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MP2359 Datasheet(HTML) 2 Page - Monolithic Power Systems |
2 / 9 page MP2359 – 1.2A, 24V, 1.4MHz STEP-DOWN CONVERTER IN A TSOT23-6 MP2359 Rev. 1.1 www.MonolithicPower.com 2 6/23/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2006 MPS. All Rights Reserved. TM PACKAGE REFERENCE BST GND FB 1 2 3 6 5 4 SW IN EN TOP VIEW Part Number* Package Temperature MP2359DJ TSOT23-6 –40 °C to +85°C MP2359DT SOT23-6 –40 °C to +85°C * For Tape & Reel, add suffix –Z (eg. MP2359DJ–Z) For RoHS compliant packaging, add suffix –LF (eg. MP2359DJ–LF–Z) ABSOLUTE MAXIMUM RATINGS (1) Supply Voltage VIN....................................... 26V VSW....................................... –0.3V to VIN + 0.3V VBS ....................................................... VSW + 6V All Other Pins................................. –0.3V to +6V Junction Temperature...............................150 °C Lead Temperature ....................................260 °C Storage Temperature ..............–65 °C to +150°C Recommended Operating Conditions (2) Supply Voltage VIN........................... 4.5V to 24V Output Voltage VOUT ...................... 0.81V to 15V Ambient Temperature................–40 °C to +85°C Thermal Resistance (3) θJA θJC TSOT23-6.............................. 220 .... 110.. °C/W SOT23-6 ................................ 220 .... 110.. °C/W Notes: 1) Exceeding these ratings may damage the device. 2) The device function is not guaranteed outside of the recommended operating conditions. 3) Measured on approximately 1” square of 1 oz copper. ELECTRICAL CHARACTERISTICS VIN = 12V, TA = +25°C, unless otherwise noted. Parameters Symbol Condition Min Typ Max Units Feedback Voltage VFB 4.5V ≤ VIN ≤ 24V 0.790 0.810 0.830 V Feedback Current IFB VFB = 0.8V 0.1 µA Switch-On Resistance (4) RDS(ON) 0.35 Ω Switch Leakage VEN = 0V, VSW = 0V 10 µA Current Limit (4) 1.8 A Oscillator Frequency fSW VFB = 0.6V 1.2 1.4 1.7 MHz Fold-back Frequency VFB = 0V 460 KHz Maximum Duty Cycle VFB = 0.6V 87 % Minimum On-Time (4) tON 100 ns Under Voltage Lockout Threshold Rising 2.5 2.8 3.1 V Under Voltage Lockout Threshold Hysteresis 150 mV EN Input Low Voltage 0.4 V EN Input High Voltage 1.2 V VEN = 2V 2.1 EN Input Current VEN = 0V 0.1 µA Supply Current (Shutdown) IS VEN = 0V 0.1 1.0 µA Supply Current (Quiescent) IQ VEN = 2V, VFB = 1V 0.8 1.0 mA Thermal Shutdown (4) 150 °C Note: 4) Guaranteed by design. |
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