MCP1256-IMF Microchip Technology, MCP1256-IMF Datasheet
MCP1256-IMF
Specifications of MCP1256-IMF
Related parts for MCP1256-IMF
MCP1256-IMF Summary of contents
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... The MCP1256, MCP1257, MCP1258 and MCP1259 provide high efficiency by automatically switching between 1.5x and 2x boost operation. In addition, at light output loads, the MCP1256 and MCP1257 can be placed in a SLEEP mode, lowering the quiescent current while maintaining the regulated output voltage. Alternatively, the MCP1258 and MCP1259 provide a BYPASS feature connecting the input voltage to the output ...
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... MCP1256/7/8/9 Package Pinouts MCP1256 PGOOD 1 SLEEP OUT MCP1258 PGOOD 1 BYPASS OUT Functional Block Diagram V IN 1.5x, 2x Mode 840 k Comparator + 650 kHz Osc. V OUT 840 k CE Bandgap + Ref. - Feedback 480 k 720k Amplifier GND TABLE 1: SWITCH LOGIC Mode Phase Oscillator 1.5x Charging H 1.5x ...
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... T J(HYS) Hysteresis © 2006 Microchip Technology Inc. MCP1256/7/8/9 † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...
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... SLEEP Mode Input - SLEEP SLEEP Input Voltage Low V IL(SLEEP) SLEEP Input Voltage High V IH(SLEEP) SLEEP Input Leakage I LK(SLEEP) Current SLEEP Quiescent Current I Q MCP1256 and MCP1258 Devices Power-Good Output - PGOOD PGOOD Threshold V TH PGOOD Hysteresis V HYS PGOOD Output Low V OL Voltage PGOOD Input Leakage I ...
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... Internal Oscillator Frequency F OSC Output Voltage Ripple, V RIP Normal Operation V Wake-up Time From T OUT WKUP Shutdown MCP1256 and MCP1257 Output Voltage Ripple, V RIP SLEEP Mode MCP1258 and MCP1259 V Wake-up Time From T OUT WKUP BYPASS TEMPERATURE SPECIFICATIONS Electrical Specifications: Unless otherwise indicated, all limits apply for V ...
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... MCP1256/7/8/9 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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... FIGURE 2-11: OUT (I ) vs. Output Current (I Q 0.8 0.7 0.6 0 2.4V IN 0.4 0.3 0.2 0 FIGURE 2-12 vs. Output Current (I Q MCP1256/7/8 mA, and T = +25° 2. 100 Output Current (mA) Quiescent Supply Current ) - Normal Mode. OUT 3.0V IN 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 ...
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... MCP1256/7/8/9 TYPICAL PERFORMANCE CURVES (CONTINUED) NOTE: Unless otherwise indicated 2.0 1.8 1.6 1.4 1.2 1.0 1.8 2.1 2.4 2.7 3.0 Input Voltage (V) FIGURE 2-13: BYPASS Impedance (R ) vs. Supply Voltage (V BYPASS IN 0.04 0.03 0.02 0.01 0.00 -0.01 -0.02 -0.03 -0. Time (μs) FIGURE 2-14: Output Voltage Ripple vs ...
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... FIGURE 2-23: Time - SLEEP Mode 2. OUT FIGURE 2-24: Time - Mode Transition: SLEEP Mode-to-Normal 2x Mode-to-SLEEP Mode. MCP1256/7/8 mA, and T = +25° 3. OUT Time (μs) Output Voltage Ripple vs 3. OUT Time (μs) Output Voltage Ripple vs. 0.20 0.10 0.00 -0. ...
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... MCP1256/7/8/9 TYPICAL PERFORMANCE CURVES (CONTINUED) NOTE: Unless otherwise indicated 0.40 0.35 V OUT 0.30 0. 2.4V IN 0.20 0.15 0.10 0.05 I OUT 0.00 Time (μs) FIGURE 2-25: Load Transient Response - Normal 2x Mode. 0.40 0.35 V OUT 0.30 0. 3.0V IN 0.20 0.15 0.10 0.05 I OUT 0.00 Time (μs) ...
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... Mode Selection (SLEEP, BYPASS) 3.2.1 ACTIVE LOW SLEEP MODE (SLEEP) MCP1256/7: A logic low signal applied to this pin places the device into a SLEEP mode of operation. In this mode, the device maintains regulation. SLEEP mode performs pulse skip operation reducing the current draw of the device at the expense of increased output voltage ripple. © ...
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... P IN 4.3 Shutdown Mode (SHDN) Driving SHDN low places the MCP1256/7/8 low- power Shutdown mode. This disables the charge-pump switches, oscillator and control logic, reducing the quiescent current to 0.25 μA (typical). The PGOOD output and LBO are in a high impedance state during shutdown ...
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... Power-Good Output (PGOOD) For the MCP1256/8 devices, the PGOOD output is an open-drain output that sinks current when the regulator output voltage falls below 0.93V (typical). If the reg- OUT ulator output voltage falls below 0.93V less than 200 μs and then recovers, glitch immunity cir- cuits prevent the PGOOD signal from transitioning low ...
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... MCP1256/7/8/9 6.0 TYPICAL APPLICATION CIRCUITS The MCP1256/7/8/9 devices are inductorless, positive regulated, switched capacitor DC/DC converters. Typical application circuits are depicted in Figure 6-1. INPUT 1. μ μ OFF Typical Application with Power-Good Indication INPUT 1. μ μ OFF Typical Application with Low-Battery Indication FIGURE 6-1: Typical Application Circuits ...
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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. © 2006 Microchip Technology Inc. MCP1256/7/8/9 Example 1256 2 ...
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... MCP1256/7/8/9 10-Lead Plastic Dual-Flat No-Lead Package (MF) 3x3x0.9 mm Body (DFN) – Saw Singulated E PIN 1 ID INDEX AREA TOP VIEW (NOTE 1) A3 Dimension Limits Number of Pins Pitch Overall Height Standoff Lead Thickness Overall Length (Note 3) Exposed Pad Length Overall Width (Note 3) Exposed Pad Width Lead Width Contact Length § ...
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... F .037 REF 0° – 8° c .003 – .009 B .006 .009 .012 5° – 15° 5° – 15° MCP1256/7/8/9 A2 MILLIMETERS* MIN NOM MAX 10 0.50 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 ...
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... MCP1256/7/8/9 NOTES: DS21989A-page 18 © 2006 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (March 2006) • Original Release of this Document. © 2006 Microchip Technology Inc. MCP1256/7/8/9 DS21989A-page 19 ...
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... MCP1256/7/8/9 NOTES: DS21989A-page 20 © 2006 Microchip Technology Inc. ...
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... Plastic Micro Small Outline (MSOP), 10-Lead © 2006 Microchip Technology Inc. MCP1256/7/8/9 . Examples: a) MCP1256-EMF: E-Temp, DFN package b) MCP1256T-EMF: Tape and Reel, E-Temp, DFN package c) MCP1256-EUN: E-Temp, MSOP package d) MCP1256T-EUN: Tape and Reel, E-Temp, MSOP package a) MCP1257-EMF: E-Temp, DFN package b) MCP1257T-EMF: Tape and Reel, E-Temp, DFN package ...
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... MCP1256/7/8/9 NOTES: DS21989A-page 22 © 2006 Microchip Technology Inc. ...
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... PowerMate, PowerTool, Real ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, 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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