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Analog Devices LTC3558 | Demoboard DC1276B

LTC3558EUD: Linear USB Battery Charger with Buck and Buck-Boost Regulators

Overview

TopologyBuck Converter
Input voltage4.35-5.5 V
Output 11.23 V / 0.5 A
IC revisionR1

Description

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.

Products

Order Code Data­sheet Simu­lation Downloads Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
Samples
150120GS75000SPEC
7 files WL-SMCW SMT Mono-color Chip LED Waterclear 525 Green 515 450 3.2 InGaN 140
Order Code Data­sheet Simu­lation
150120GS75000SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
Samples