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AAT2847IML-EE-T1 Datasheet(PDF) 5 Page - Advanced Analogic Technologies |
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AAT2847IML-EE-T1 Datasheet(HTML) 5 Page - Advanced Analogic Technologies |
5 / 20 page AAT2847 Four-Channel Backlight Driver with Dual LDOs ChargePumpTM PRODUCT DATASHEET 2847.2008.05.1.2 5 www .analogictech.com AAT2847 Four-Channel Backlight Driver with Dual LDOs ChargePumpTM PRODUCT DATASHEET 2847.2008.05.1.2 5 www .analogictech.com Electrical Characteristics1 VIN = 3.6V; CIN = CLDOA = CLDOB = 2.2µF; COUT = 1µF; C1 = C2 = 1µF; TA = 25°C, unless otherwise noted. Typical values are at TA = 25°C. Symbol Description Conditions Min Typ Max Units LDOs: AAT2847-EE IIN IN Operating Current VENA = VENB = VIN, VEN/SET = 0V, No Load 80 150 µA VENA = VIN; VENB = 0V; VEN/SET = 0V; No Load 60 112 VFBA, VFBB Feedback Voltage ILDO[A/B] = 1mA to 200mA 1.17 1.2 1.23 V VDO Dropout Voltage ILDO[A/B] = 150mA 150 300 mV ∆VOUT/ VOUT*∆VIN Line Regulation VIN = (VLDO[A/B] + 1V) to 5V 0.09 %/V PSRR Power Supply Rejection Ratio ILDO[A/B] =10mA, 1kHz 50 dB LDOs: AAT2847-QG IIN IN Operating Current VENA = VENB = VIN, VEN/SET = 0V, No Load 80 150 µA VENA = VIN; VENB = 0V; VEN/SET = 0V; No Load 60 112 LDOA LDOA Voltage Tolerance ILDOA = 1mA to 150mA 2.716 2.8 2.884 V LDOB LDOB Voltage Tolerance ILDOB = 1mA to 150mA 1.455 1.5 1.545 V VDO LDOA Dropout Voltage2 ILDOA = 150mA 150 300 mV ∆VLDO[A/B]/ VLDO[A/B]*∆VIN LDOA, LDOB Line Regulation VIN = (LDOA + 1V) to 5V; VIN = (LDOB + 1.2V) to 5V 0.09 %/V PSRR LDOA, LDOB Power Supply Rejection Ratio ILDO[A/B] =10mA, 1kHz 50 dB LDOs: AAT2847-QI IIN IN Operating Current VENA = VENB = VIN, VEN/SET = 0V, No Load 80 150 µA VENA = VIN; VENB = 0V; VEN/SET = 0V; No Load 60 112 LDOA LDOA Voltage Tolerance ILDOA = 1mA to 150mA 2.716 2.8 2.884 V LDOB LDOB Voltage Tolerance ILDOB = 1mA to 150mA 1.746 1.8 1.854 V VDO LDOA Dropout Voltage2 ILDOA = 150mA 150 300 mV ∆VLDO[A/B]/ VLDO[A/B]*∆VIN LDOA, LDOB Line Regulation VIN = (LDO[A/B] + 1V) to 5V 0.09 %/V PSRR LDOA, LDOB Power Supply Rejection Ratio ILDO[A/B] = 10mA, 1kHz 50 dB LDO Logic Control – All Options VIL(ENA), VIL(ENB) ENA, ENB Input Logic Low Threshold Voltage 0.4 V VIH(ENA), VIH(ENB) ENA, ENB Input Logic High Threshold Voltage 1.4 V IEN[A/B] ENA, ENB Input Leakage VEN[A/B] = VIN = 5V -1 1 µA 1. The AAT2847 is guaranteed to meet performance specifications over the –40˚C to +85°C operating temperature range is assured by design, characterization and correlation with statistical process controls. 2. VDO is defined as VIN - LDOA when LDOA is 98% of nominal. |
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