MP2492 MPS, MP2492 Datasheet
MP2492
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MP2492 Summary of contents
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... Fault condition protection includes cycle-by-cycle current limiting, and thermal shutdown. The MP2492 requires a minimum number of readily available standard external components. The MP2492 is available in QFN10 (3mm x 3mm) and SOIC8E packages. TYPICAL APPLICATION MP2492 Rev. 1.0 12/20/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. ...
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... QFN10(3mmx3mm) * For Tape & Reel, add suffix –Z (e.g. MP2492DN–Z). For RoHS compliant packaging, add suffix –LF (e.g. MP2492DN–LF–Z) ** For Tape & Reel, add suffix –Z (e.g. MP2492DQ–Z). For RoHS compliant packaging, add suffix –LF (e.g. MP2492DQ–LF–Z) VIN GND ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT ELECTRICAL CHARACTERISTICS V = 12V +25°C, unless otherwise noted Parameters Feedback Voltage Feedback Bias Current Switch On Resistance (5) Switch Leakage Current Limit Oscillator Frequency Boot-Strap Voltage V Minimum On Time SW rising edge SW falling edge Under Voltage Lockout Threshold ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT PIN FUNCTIONS QFN10 SOIC-8 Name Description Pin # Pin # Supply Voltage. The MP2492 operates from a +4.5V to +55V unregulated input VIN as close to the IC as possible the drain of the internal power device and power supply for the whole chip. ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT TYPICAL PERFORMANCE CHARACTERISTICS C 1 =220uF =2.2uF =39uF =22uF, L=39uH, T Efficiency vs. Load Current V =5V OUT 100 V = =12V =50V 0.0 0.4 0.8 1.2 1.6 I (A) OUT Load Regulation V =5V OUT 5 ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT TYPICAL PERFORMANCE CHARACTERISTICS C =220uF, C =2.2uF, C =39uF Steady State V = 12V, V =5V OUT OUT Electrical Load V SW 10V/div 100mV/div. V OUT 10mV/div 2A/div. 10us/div. Steady State V = 50V 5V 1.8A IN OUT ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT OPERATION The MP2492 is a current mode buck regulator. That is, the EA output voltage is proportional to the peak inductor current. At the beginning of a cycle SW is off, the EA output voltage is higher than the current sense amplifier output and the current comparator’s output is low ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT APPLICATION INFORMATION Setting the Output Voltage The external resistor divider is used to set the output voltage (see the schematic on front page). The feedback resistor R1 also sets the feedback loop bandwidth with the internal compensation capacitor (see Figure 1). Choose around 300kΩ ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT Output Current Sensing The output current can be sensed through the DC resistance (DCR) of the inductor, as shown in Figure 3a. For more accurate sensing, use a more accurate sense resistor. In Figure 3a, the output current limit is set as: ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT PACKAGE INFORMATION 0.189(4.80) 0.197(5.00 PIN TOP VIEW 0.013(0.33) 0.020(0.51) 0.050(1.27) BSC FRONT VIEW 0.024(0.61) 0.050(1.27) 0.063(1.60) 0.138(3.51) RECOMMENDED LAND PATTERN MP2492 Rev. 1.0 12/20/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2492 – 2A, 55V, 100kHz WITH PROGRAMMABLE OUTPUT CURRENT LIMIT 2.90 3.10 PIN 1 ID MARKING PIN 1 ID INDEX AREA TOP VIEW 0.20 REF SIDE VIEW 2.90 0.70 1.70 0.25 0.50 RECOMMENDED LAND PATTERN NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application ...