MCP1612-180I/MS Microchip Technology, MCP1612-180I/MS Datasheet
MCP1612-180I/MS
Specifications of MCP1612-180I/MS
Related parts for MCP1612-180I/MS
MCP1612-180I/MS Summary of contents
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... Description The MCP1612 is a 1A, 1.4 MHz fully integrated current mode-controlled synchronous Buck regulator. The MCP1612 is packed in the 8-pin MSOP and the space- saving DFN package. The DFN package also provides a lower thermal resistance package option for high-power, high ambient temperature applications. ...
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... MCP1612 Functional Block Diagram Undervoltage V CC Lockout (UVLO) Slope Comp. + Comp Disable 1.4 MHz Clock 0.8V A GND A GND DS21921A-page 2 UVLO + Peak Current Limit Disable V INSET REF IN Soft Start Leading- Edge Blank V CC 1.2V Disable GND P-Channel SENSE PDRV L X CKT. NDRV ...
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... Typical Application Circuit MCP1612 3.3V to 1.2V Synchronous Buck Converter 3.3V ±10 µF Ceramic C byp 0.1 µF Ceramic ON OFF 25 k 1000 pF 2004 Microchip Technology Inc 3.3 µ MCP1612 GND GND SHDN Comp MCP1612 1. OUT C OUT 100 k 10 µF Ceramic 200 k DS21921A-page 3 ...
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... MCP1612 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † – .....................................................................6.0V IN GND (SHDN, FB Comp ........... (A – 0.3V GND .............................................. -0. GND ................................................... -0.3V to +0.3V GND GND Output Short Circuit Current ................................. Continuous Storage temperature .....................................-65°C to +150°C Ambient Temp. with Power Applied.................-40°C to +85°C Operating Junction Temperature...................-40°C to +125°C ...
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... A T — — +150 — + 125 A — 208 — °C/W JA — 41 — °C/W JA MCP1612 = µ 3.3 µH, IN OUT Conditions V Note 2 mV °C Note 1 ° and from cases where IN X GND must be overcome before the device will HYS = 0.1 µ -40° ...
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... MCP1612 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e ...
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... V IN 2.0V/DIV V OUT 50 mV/DIV V OUT = 1.8V FIGURE 2-11 1.8V OUT V IN 2.0V/DIV V OUT 50 mV/DIV FIGURE 2-12: MCP1612 = 100 mA, LOAD I = 100 mA to 800 mA OUT 5.0V V OUT = 3.3V 500 µS/DIV Load Transient Response. Line Step Response 3.0V to 4.0V V OUT = 1. 800 mA 200 µS/DIV Line Transient Response. ...
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... MCP1612 TYPICAL PERFORMANCE CURVES (Continued) Note: Unless otherwise indicated +25°C. Boldface specifications apply over the T A Low-Load Switching Waveform mA 1.8V OUT OUT Lx 2.0V/DIV V OUT 10 mV/DIV I IND 100 mA/DIV 500 nS/DIV FIGURE 2-13: Low Load Current Switching Waveform. DS21921A-page 3.3V µ 3.3 µH, I ...
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... MCP1612 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. Name 1 V Input Voltage Pin Analog Input Voltage Pin CC 3 SHDN Shutdown Control Input Pin 4 COMP Transconductance Amplifier Output Pin 5 FB Feedback Input Pin ...
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... Shutdown Input Operation ) x OUT The SHDN pin is used to turn the MCP1612 on and off. ). When the SHDN pin is tied low, the MCP1612 is off. When tied high, the MCP1612 will be enabled and begin operation as long as the input voltage is not below the UVLO threshold ...
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... Output voltage = 1.2V Output current = Switching frequency = 1.4 MHz 5.2.1 SETTING OUTPUT VOLTAGE The output voltage of the MCP1612 is set by using an external resistor divider network. The voltage present at the feedback input pin (FB) is internally compared to a 0.8V reference voltage. A 200 k resistor is recom- mended for R , the lower end of the voltage divider ...
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... MCP1612 5.2.2 BUCK INDUCTOR There are many requirements that need to be satisfied when selecting the Buck inductor. The application, physical size, current rating, resistance, mounting method, supplier, temperature range, inductance and cost all need to be considered. Many suppliers specify the maximum peak current that an inductor can handle before magnetic saturation occurs ...
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... Printed Circuit Board Layout The MCP1612 is capable of switching over 1A at 1.4 MHz. As with all high-frequency switching power supplies, good board layout techniques are essential to prevent noise generated by the switching power-train from interfering with the sensing circuitry. ...
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... MCP1612 6.0 PACKAGING INFORMATION 6.1 Package Marking Information (Note) 8-Lead MSOP XXXXX YWWNNN 8-Lead DFN (3mm x 3mm) XXXX YYWW NNN The DFN package for this device has not been qualified at the time of this publication. Contact your Microchip Sales Office for availability. ...
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... F .037 REF φ 0° - 8° c .003 .006 .009 B .009 .012 .016 α 5° - 15° β 5° - 15° MCP1612 α A2 MILLIMETERS* MIN NOM MAX 8 0.65 BSC - - 1.10 0.75 0.85 0.95 0.00 - 0.15 4.90 BSC 3.00 BSC 3.00 BSC 0.40 0.60 0.80 0.95 REF 0° ...
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... MCP1612 8-Lead Plastic Dual Flat No Lead Package (MF) 3x3x0.9 mm Body (DFN) – Saw Singulated The DFN package for this device has not been qualified at the time of this publication. Contact your Microchip Sales Office for availability. D PIN 1 ID INDEX AREA TOP VIEW (NOTE 2) ...
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... APPENDIX A: REVISION HISTORY Revision A (December 2004) • Original data sheet release. 2004 Microchip Technology Inc. MCP1612 DS21921A-page 17 ...
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... MCP1612 NOTES: DS21921A-page 18 2004 Microchip Technology Inc. ...
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... Register on our web site (www.microchip.com) to receive the most current information on our products. 2004 Microchip Technology Inc. MCP1612 . Examples: a) MCP1612-ADJI/MS: Industrial Temperature, 8LD MSOP package. b) MCP1612T-ADJI/MS: Tape and Reel Industrial Temperature, 8LD MSOP package. c) MCP1612-ADJI/MF: Industrial Temperature, 8LD DFN package. d) MCP1612T-ADJI/MF: Tape and Reel Industrial Temperature, 8LD DFN package. DS21921A-page 19 ...
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... MCP1612 NOTES: DS21921A-page 20 2004 Microchip Technology Inc. ...
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... PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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