MCP1623-I/MC Microchip Technology, MCP1623-I/MC Datasheet
MCP1623-I/MC
Specifications of MCP1623-I/MC
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MCP1623-I/MC Summary of contents
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... For standby applications, the MCP1624 operates and consumes only 19 µA while operating at no load. The MCP1623 device option is available that operates in PWM-only mode. A “true” Load Disconnect mode provides input to output isolation while disabled (EN = GND) by removing the normal boost regulator diode path from input to output. This mode consumes less than 1 µ ...
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... MCP1623/ 0. 4.7 µF - MCP1623/24 Typical Application Circuit 100 0.01 MCP1624 Efficiency vs. I FIGURE 1: Typical Application. DS41420B-page 4.7 µH V OUT 3. OUT V IN 976 K 562 K GND V = 0. (mA) OUT , V = 3.3V OUT OUT OUT 10 µF ® PIC MCU 2. 1.2V IN 100 1000 ...
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... OUT quiescent current will vary with boost ratio )), ( )). IN QPWM OUT IN (15 mA). MCP1623/24 the operational sections of this = 10 µ 4.7 µ 3.3V, IN OUT Units Conditions V Note 1 V Note 1 Note 2 OUT ...
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... MCP1623/24 DC CHARACTERISTICS (CONTINUED) Electrical Characteristics: Unless otherwise indicated mA +25°C. OUT A Boldface specifications apply over the T Parameters Sym. NMOS Peak Switch Current I N(MAX) Limit V OUT V Accuracy OUT V Line Regulation OUT V V Load Regulation V OUT Maximum Duty Cycle ...
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... Ambient OUT Q Temperature in PWM Mode. 350 3.3V 300 OUT 250 V = 2.0V OUT 200 150 100 50 0 0.5 1 1.5 2 2.5 3 3.5 Input Voltage (V) FIGURE 2-3: MCP1623/ OUT 2010 Microchip Technology Inc µ 4.7 µH, V OUT IN 100 3.3V OUT 0. FIGURE 2-4: ...
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... T = +25°C. OUT LOAD A Startup Shutdown 100 I (mA) OUT Minimum Start-up and into Resistive Load vs OUT V = 3.3V OUT - Ambient Temperature (°C) F vs. Ambient OSC V = 5.0V OUT V = 3.3V OUT V = 2.0V OUT (mA) OUT MCP1623 PWM Pulse . OUT 2010 Microchip Technology Inc. ...
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... OUT 5.0V OUT = 3. 5.0V OUT 2.9 3.2 3.5 FIGURE 2-16: Mode Waveforms. 4 4.5 5 FIGURE 2-17: PWM Mode Waveforms 5.0V OUT 3 3.5 4 FIGURE 2-18: Waveforms. MCP1623/24 = 3.3V mA +25°C. OUT LOAD A MCP1624 3.3V V PFM OUT MCP1623 3.3V V OUT MCP1623/24 High Load DS41420B-page 7 ...
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... L = 4.7 µH, V OUT IN OUT FIGURE 2-22: Transient Waveforms. = FIGURE 2-23: IN Transient Waveforms. Load FIGURE 2-24: OUT Waveforms. = 3.3V mA +25°C. LOAD A MCP1623 3.3V V Load OUT MCP1623 PWM MCP1623 2.0V V Load OUT 3.3V V Line Transient OUT 2010 Microchip Technology Inc. ...
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... PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE Pin No. MCP1623/24 SOT23 SW 1 GND OUT 3.1 Switch Node Pin (SW) Connect the inductor from the input voltage to the SW pin. The SW pin carries inductor current and can be as high as 425 mA peak ...
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... DETAILED DESCRIPTION 4.1 Device Option Overview The MCP1623/24 family of devices is capable of low start-up voltage and delivers high efficiency over a wide load range for single cell, two cell, three cell alkaline, NiMH, NiCd and single cell Li-Ion battery inputs. A high level of integration lowers total system cost, eases implementation and reduces board area ...
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... Figure 4-1 depicts the functional block diagram of the MCP1623/24. 4.2.1 LOW-VOLTAGE START-UP The MCP1623/24 is capable of starting from a low input voltage. Start-up voltage is typically 0.65V for a 3.3V output and 1 mA resistive load. When enabled, the internal start-up logic turns the rectifying P-Channel switch on until the output capacitor is charged to a value close to the input voltage ...
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... True output discon- nect does not discharge the output; the output voltage is held up by the external C 4.2.6 INTERNAL BIAS The MCP1623/24 gets its start-up bias from V the output exceeds the input, bias comes from the output. Therefore, The ...
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... As with the input capacitor, X5R and X7R ceramic capacitors are well suited for this application. The MCP1623/24 is internally compensated so output – capacitance range is limited. See ommended output capacitor range. ...
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... MCP1623/24 5.5 Inductor Selection The MCP1623/24 is designed to be used with small surface mount inductors; the inductance value can range from 2.2 µ µH. An inductance value of 4.7 µH is recommended to achieve a good balance between inductor size, converter load transient response and minimized noise. ...
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... Therefore important that the input and output capacitors be placed as close as possible to the MCP1623/24 to minimize the loop area. The feedback resistors and feedback signal should be routed away from the switching node and the switching current loop ...
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... MCP1623/24 NOTES: DS41420B-page 16 2010 Microchip Technology Inc. ...
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... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. 2010 Microchip Technology Inc. MCP1623/24 Example CJNN Package Marking HUNN CJNN ...
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... MCP1623/24 6-Lead Plastic Small Outline Transistor (CHY) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Number of Pins Pitch Outside Lead Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width ...
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... Plastic Small Outline Transistor (CHY) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2010 Microchip Technology Inc. MCP1623/24 DS41420B-page 19 ...
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... MCP1623/24 NOTES: DS41420B-page 20 2010 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (05/2010) • Original Release of this Document. Revision B (07/2010) • Updated packaging specification. 2010 Microchip Technology Inc. MCP1623/24 DS41420B-page 21 ...
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... MCP1623/24 NOTES: DS41420B-page 22 2010 Microchip Technology Inc. ...
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... Range: Package: CHY = Plastic Small Outline Transistor (SOT-23), 6-lead 2010 Microchip Technology Inc. /XX Examples: Package a) MCP1623T-I/CHY: b) MCP1624T-I/CHY: MCP1623/24 . Tape and Reel, 0.65V, Sync Reg., 6LD SOT-23 package Tape and Reel, 0.65V, Sync Reg., 6LD SOT-23 package DS41420B-page 23 ...
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... MCP1623/24 NOTES: DS41420B-page 24 2010 Microchip Technology Inc. ...
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... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA 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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