MP2467 MPS, MP2467 Datasheet
MP2467
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MP2467 Summary of contents
Page 1
... The Future of Analog IC Technology DESCRIPTION The MP2467 is a high frequency step-down switching regulator with integrated internal high-side, high voltage power MOSFET. It provides 2.5A output with current mode control for fast loop response and easy compensation. The wide 6V to 36V input range accommodates ...
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... COMP Part Number* Package MP2467DN SOIC8E * For Tape & Reel, add suffix –Z (eg. MP2467DN–Z) For RoHS compliant packaging, add suffix –LF (eg. MP2467DN–LF–Z) ELECTRICAL CHARACTERISTICS V = 12V 2.5V 1.4V COMP Parameter Feedback Voltage Upper Switch On Resistance Upper Switch Leakage ...
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... Bootstrap. This is the positive power supply for the internal floating high-side MOSFET driver. 8 BST Connect a bypass capacitor between this pin and SW pin. MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER www.MonolithicPower.com © 2008 MPS. All Rights Reserved. Schottky rectifier to ground f 3 ...
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... LOAD CURRENT (A) Steady State I = 0.1A OUT V OUT AC Coupled 10mV/div 10V/div 1A/div MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER = +25°C, unless otherwise noted. A 100 =12V IN V =24V =2.5V OUT 40 1.5 2 ...
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... I L 1A/div. Short Circuit Entry I = 0.1A to Short OUT V OUT 2V/div 1A/div. MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER (continued) = +25°C, unless otherwise noted. A Shutdown I = 0.1A OUT V EN 5V/div. V OUT 2V/div 10V/div ...
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... OSCILLATOR 5 GND Figure 1—Functional Block Diagram frequency, The MP2467 operates in a fixed frequency, peak current control mode to regulate the output voltage. A PWM cycle is initiated by the internal clock. The power MOSFET is turned on and remains on until its current reaches the value set by the COMP voltage. When the power switch is off, it remains off for at least 200ns before the next cycle starts ...
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... When VIN is greater than 3.0V, the output of the regulator is in full regulation. When VIN is lower than 3.0V, the output decreases. Enable Control The MP2467 has a dedicated enable control pin (EN). With high enough input voltage, the chip can be enabled and disabled by EN. Its falling threshold is 1.2V, and its rising threshold is 1 ...
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... MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER reference voltage and currents, and then the internal regulator is enabled. The regulator provides stable supply for the remaining circuitries ...
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... V V OUT few µA current from high side BS circuitry can be seen at the output when the MP2467 load. In order to absorb this small amount of current, keep R2 under 40KΩ. A typical value for R2 can be 40.2kΩ. With this value, R1 can be determined by: = × ...
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... Current Rating B240A-13-F 40V, 2A B340A-13-F 40V, 3A CMSH2-40M 40V, 2A CMSH3-40MA 40V, 3A MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER Table 1—Inductor Selection Guide Max DCR (Ω) Current Rating (A) 2.2 0.019 3.3 0.024 4.7 0.033 10 0.035 15 0.025 22 0 ...
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... IN S The characteristics of the output capacitor also affect the stability of the regulation system. The MP2467 can be optimized for a wide range of capacitance and ESR values. MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER ...
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... To optimize the compensation components for conditions not listed in Table 3, the following procedure can be used. MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER 1. Choose the compensation resistor (R3) to set the desired crossover frequency. Determine the is used to ...
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... MP2467 SW Figure 2—External Bootstrap Diode MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER This diode is also recommended for high duty cycle operation (when V V (<5Vin) applications load or light load, the converter may operate in pulse skipping mode in order to maintain the output voltage in regulation ...
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... TYPICAL APPLICATION CIRCUITS 36V EN Figure 3—1.8V Output Typical Application Schematic Figure 4—5V Output Typical Application Schematic MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER C4 100nF BST SW VIN MP2467 ...
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... Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP2467 Rev. 1.0 5/26/2008 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER SOIC8E (EXPOSED PAD) 0.150(3.80) 0.228(5.80) 0.157(4.00) 0.244(6.20) SEE DETAIL " ...