Topology | Buck Converter |
Input voltage | 4.35-5.5 V |
Output 1 | 1.23 V / 0.5 A |
IC revision | R1 |
Demonstration Circuit DC1276B is a Linear USB BatteryCharger with Buck and Buck-Boost Convertersfeaturing the LTC®3558EUD. The LTC3558EUD is alinear battery charger IC for Li-Ion/polymer battery applications,with a general purpose synchronous stepdownswitching regulator and a general purpose buckboostregulator. For USB powered applications, thebattery charge current can be limited to 500mA, bysetting RPROG to 1.74 kΩ. For non-USB powered applications,the charge current can be set as high as950mA, by simply changing RPROG. The buck and thebuck-boost switching regulators can deliver up to400mA load current, each. The LTC3558EUD is availablein 20-pin (3mm × 3mm) QFN surface mountpackage.Design files for this circuit board are available, call theLTC factory.
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | Samples | |
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150120GS75000 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 525 | Green | 515 | 450 | 3.2 | InGaN | 140 |
Order Code | Datasheet | Simulation | |
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150120GS75000 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | Samples |
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