Datasheet LT3048 (Analog Devices) - 3

LT3048 Series
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, EN/UVLO = 3V, unless otherwise noted. Parameter applies to all options unless specified. PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Range 2.7 4.8 V
Boost Regulator
BSTOUT-LDOOUT Regulation Voltage l 1 1.1 1.2 V BSTOUT-VIN Regulation Voltage LDOOUT < VIN 1.1 V VIN Quiescent Current Not Switching 475 600 µA EN ≤ 0.4V 0.1 1 µA Switching Frequency LT3048 0.75 1.00 1.25 MHz l 0.7 1.00 1.30 MHz LT3048-XX 1.7 2.2 2.7 MHz l 1.6 2.2 2.8 MHz Maximum Duty Cycle LT3048 93 95 % LT3048-XX 86 90 % Switch Current Limit (Note 3) 300 400 500 mA Switch VCESAT ISW = 200mA 220 mV Diode Forward Drop IDIODE = 100mA 0.84 V EN Voltage High 1.25 V EN Voltage Low 0.4 V
LDO Linear Regulator
LDO Quiescent Current LT3048: Supplied by LDOIN 14 20 µA LT3048-XX: Supplied by BSTOUT 14 20 µA FB Pin Current 60 nA FB Regulation Voltage LT3048: ILOAD = 100µA, FB = LDOOUT 1.216 1.235 1.254 V LT3048: 100µA ≤ ILOAD ≤ 40mA l 1.210 1.235 1.260 V FB Load Regulation LT3048: ∆ILOAD = 100µA to 40mA 2 6 mV LDOOUT Regulation Voltage LT3048-15: ILOAD = 100µA 14.775 15.00 15.225 V LT3048-15: 100µA ≤ ILOAD ≤ 40mA l 14.625 15.00 15.375 V LT3048-12: ILOAD = 100µA 11.82 12.00 12.18 V LT3048-12: 100µA ≤ ILOAD ≤ 40mA l 11.70 12.00 12.30 V LT3048-5: ILOAD = 100µA 4.925 5.00 5.075 V LT3048-5: 100µA ≤ ILOAD ≤ 40mA l 4.875 5.00 5.125 V LT3048-3.3: ILOAD = 100µA 3.250 3.300 3.350 V LT3048-3.3: 100µA ≤ ILOAD ≤ 40mA l 3.217 3.300 3.383 V LDOOUT Load Regulation LT3048-15: ∆ILOAD = 100µA to 40mA 20 45 mV LT3048-12: ∆ILOAD = 100µA to 40mA 20 45 mV LT3048-5: ∆ILOAD = 100µA to 40mA 12 25 mV LT3048-3.3: ∆ILOAD = 100µA to 40mA 9 18 mV Rev B For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions LT3048 LT3048-xx LT3048 Block Diagrams Operation Applications Information Package Description Revision History Related Parts