ML4854IT Fairchild, ML4854IT Datasheet
ML4854IT
Related parts for ML4854IT
ML4854IT Summary of contents
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... The combination of integrated synchronous rectification, variable frequency operation, and low supply current make ML4854 ideal for portable applications. The ML4854 is available lead TSSOP package. ML4854 V GND SHDN V L Output 3. LBI 0.5A OUT 4 5 LB0 FB www.fairchildsemi.com REV. 1.0.7 5/6/03 ...
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PRODUCT SPECIFICATION Pin Configuration Pin Description PIN NAME 1 V Battery Input Voltage . Supplies the IC during start-up. After the output is running, the IC draws IN power from V . OUT 2 SHDN Shut Down . Pulling this ...
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ML4854 Recommended Operating Conditions Parameter Temperature Range V Operating Range IN V Operating Range OUT Electrical Characteristics Unless otherwise specified, V =1. +25°C A Parameter Start Up Voltage Operating Voltage Output Voltage Output ...
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PRODUCT SPECIFICATION VIN 2 1 1.6V to 3.0V R1 JP2 750K SHDN 2 1 JP3 Reset 47µF R2 240K Ext Pull GND UP1B100 10uH U1 ML4854 1 8 Vin ...
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ML4854 Typical Operating Characteristics Maximum Steady State Load Current vs. Input Voltage 500 400 V = 3.3V OUT 300 OUT 200 100 1.5 2 2.5 Input Voltage, V Efficiency vs. Load Current Vout = 5V 100.0 Vin=3V ...
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PRODUCT SPECIFICATION Typical Operating Characteristics Line Transient Response @100mA Load Exiting Shutdown V OUT V SHDN Heavy-Load Switching Waveforms OUT 6 (Continued) Inductor Current and Switching Node Voltage Inductor Current V L Load Transient Response ...
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ML4854 Typical Operating Characteristics Output Voltage vs. Temperature 3.33 3.325 3.32 3.315 50mA 3.31 3.305 300 mA 3.3 3.295 3.29 -50 0 Temperature, C Start-up Voltage vs. Load Current 1.8 1.6 Vout=5V 1.4 1 100 150 Load ...
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PRODUCT SPECIFICATION Block Diagram LBO 4 LBI 3 – 0.39V V V OUT IN Start-Up 1 Minimum Off-Time Logic Variable On-Time One Shot I SHDN LIMIT Functional Description Boost regulator ML4854 is an adjustable boost regulator that combines ...
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ML4854 The synchronous rectifier significantly improves efficiency without the addition of an external component, so that conversion efficiency can be as high as 94% over a large load range, as shown in the “Typical Operating Characteristics.” Even at light loads, ...
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PRODUCT SPECIFICATION improve the design by enlarging the capacitor or using smaller capacitors in parallel to reduce the ESR or by using better capacitors with lower ESR. Tradeoffs have to be made between performance and costs of the external parts ...
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ML4854 components. The PCB layout should be based on some simple rules to minimize EMI and to ensure good regulation performances: 1. Place the IC, inductor, input and output capacitor as close together as possible. 2. Keep the output capacitor ...
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PRODUCT SPECIFICATION Mechanical Dimensions Package: T08 8-Lead TSSOP 0.113 - 0.123 (2.87 - 3.12) 8 PIN 0.026 BSC (0.65 BSC) 0.008 - 0.012 0.033 - 0.037 (0.20 - 0.30) (0.84 - 0.94) SEATING PLANE 12 0.169 - ...
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... PRODUCT SPECIFICATION Ordering Information Part Number ML4854IT DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; ...