Product Summary

The AAT3113ITP-20-T1 HTG4H is a high efficiency 1.5X fractional charge pump for white LED application. The AAT3113ITP-20-T1 HTG4H is a low noise, constant frequency charge pump DC/DC converter that uses fractional (1.5X) conversion to increase efficiency in White LED applications. The device can be used to produce current level up to 20mA for each output from a 2.7V to 5.5V input. Low external part count (two 1μF flying capacitors and two small bypass capacitors at VIN, and OUT) makes the AAT3113ITP-20-T1 HTG4H ideally suited for small battery-power application.

Parametrics

AAT3113ITP-20-T1 HTG4H absolute maximum ratings: (1)VIN Input Voltage -0.3 to 6 V; (2)VOUT Charge Pump Output -0.3 to 6 V; (3)VEN/SET EN/SET to GND Voltage -0.3 to 6 V; (4)VEN/SET(MAX) Maximum EN/SET to Input Voltage 0.3 V; (5)IOUT Maximum DC Output Current (Sum of Iout and D currents) 150 mA; (6)θJA Thermal Resistance 37 ℃/W; (7)TJ Operating Junction Temperature Range -40 to 150 ℃.

Features

AAT3113ITP-20-T1 HTG4H features: (1)White LED Backlighting; (2)20mA Full Scale Current; (3)32 Position Logarithmic Scale with Digital Control; (4)Simple Serial Control(S2Cwire interface; (5)Low Noise Constant Frequency Operation; (6)33% Less Input Current Than Doubler Charge Pump; (7)High Accuracy Brightness Matching; (8)Small Application Circuit; (9)Regulated Output Current; (10)Automatic Soft-Start; (11)VIN Range: 2.7V to 5.5V; (12)No Inductors; (13)600kHz Switching Frequency; (14)Iq < 1μA in Shutdown; (15)Temperature Range -40 to 85℃; (16)16-Pin QFN, 12-Pin TSOPJW Package.

Diagrams

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