ML4861CS-3 MICRO-LINEAR [Micro Linear Corporation], ML4861CS-3 Datasheet
ML4861CS-3
Related parts for ML4861CS-3
ML4861CS-3 Summary of contents
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GENERAL DESCRIPTION The ML4861 is a boost regulator designed for conversion cell battery powered systems. The combination of BiCMOS process technology, internal synchronous rectification, variable frequency operation, and low supply current make the ...
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ML4861 PIN CONNECTION PIN DESCRIPTION PIN NO. NAME FUNCTION 1 V Battery input voltage 200mV reference output REF 3 GND Analog signal ground 4 DETECT When this pin below V the RESET pin to go low 2 ...
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... V (MAX), 9µ OUT OPERATING CONDITIONS Temperature Range ML4861CS-X .............................................. 0°C to 70°C ML4861ES-X ........................................... –20°C to 70°C ML4861IS-X ............................................ –40°C to 85°C V Operating Range IN ML4861CS-X ................................ 1. ML4861ES-X, ML4861IS-X ............ 1. 500mA = Operating Temperature Range (Note 1). A CONDITIONS – 0.2V IN OUT 0 < ...
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ML4861 (Sumida CD75) 100 F ML4861 V PWR GND IN 0 RESET REF GND V L DETECT V OUT 100 F Figure 1. Application Test Circuit ...
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FUNCTIONAL DESCRIPTION The ML4861 combines Pulse Frequency Modulation (PFM) and synchronous rectification to create a boost converter that is both highly efficient and simple to use. A PFM regulator charges a single inductor for a fixed period of time and ...
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ML4861 ML4861-3.3 500 L = 10µH 400 300 200 100 0 1.0 2.0 V (V) IN 500 400 300 200 100 0 Figure 5 shows efficiency under the conditions used to create Figure 4. It can be seen that efficiency ...
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ML4861-3.3 95% 90% 85% 80% 75 10µH 70% 65 95% 90% 85% 80% 75% 70% 0 OUTPUT CAPACITOR The choice of output capacitor is also important controls the output ripple and ...
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ML4861 INPUT CAPACITOR Unless the input source is a very low impedance battery, it will be necessary to decouple the input with a capacitor with a value of between 47µF and 100µF. This provides the benefits of preventing input ripple ...
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TABLE 1. MAXIMUM OUTPUT CURRENT AND EFFICIENCY. ML4861-3 (mA) EFFICIENCY PERCENTAGE IN OUT L = 10µH 1.0 77.5 1.5 191.7 2.0 310.2 2.5 409 15µH 1.0 58.5 1.5 137.1 2.0 232.1 2.5 335.3 3.0 405.0 L ...
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ML4861 TABLE 1. MAXIMUM OUTPUT CURRENT AND EFFICIENCY ML4861-6.0 V (V) I (mA 10µH 1.0 325.8 1.5 524.6 2.0 730.0 2.5 910 15µH 1.0 220.5 1.5 365.7 2.0 516.7 2.5 639.3 3.0 755.1 3.5 ...
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... PHYSICAL DIMENSIONS 0.017 - 0.027 (0.43 - 0.69) (4 PLACES) 0.055 - 0.061 (1.40 - 1.55) ORDERING INFORMATION PART NUMBER ML4861CS-3 ML4861CS-5 ML4861CS-6 ML4861ES-3 ML4861ES-5 ML4861ES-6 (Obsolete) ML4861IS-3 (Obsolete) ML4861IS-5 (Obsolete) ML4861IS-6 (Obsolete) © Micro Linear 1996 is a registered trademark of Micro Linear Corporation Products described in this document may be covered by one or more of the following patents: 4,897,611; 4,964,026; 5,027,116; ...