Datasheet LT8410, LT8410-1 (Analog Devices) - 3

LT8410/LT8410-1
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3V, VSHDN = VCC unless otherwise noted. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Switch VCESAT LT8410, ISW = 10mA 150 mV LT8410-1, ISW = 4mA 100 mV Switch Leakage Current VSW = 5V 0 1 µA Schottky Forward Voltage IDIODE = 10mA 650 850 mV Schottky Reverse Leakage VCAP – VSW = 5 0 0.5 µA VCAP – VSW = 40 0 1 µA PMOS Disconnect Current Limit LT8410 14 19 25 mA LT8410-1 2.5 4 5 mA PMOS Disconnect VCAP – VOUT IOUT = 1mA 50 mV VOUT Resistor Divider Ratio l 31.6 31.85 32.2 FBP Pin Bias Current VFBP = 0.5V, Current Flows Out of Pin l 1.3 30 nA SHDN Minimum Input Voltage High SHDN Rising l 1.20 1.30 1.45 V SHDN Input Voltage High Hysteresis 60 mV SHDN Hysteresis Current (Note 3) 0.08 0.1 0.14 µA SHDN Input Voltage Low 0.3 V SHDN Pin Bias Current VSHDN = 3V 0 1 µA VSHDN = 16V 2 3 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
See the Applications Information section for more information. may cause permanent damage to the device. Exposure to any Absolute
Note 4:
Start-up mode occurs when VOUT is less than VFBP • 64/3. Maximum Rating condition for extended periods may affect device reliability and lifetime.
Note 2:
The LT8410E/LT8410E-1 are guaranteed to meet performance specifications from 0°C to 125°C junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LT8410I/LT8410I-1 are guaranteed over the full –40°C to 125°C operating junction temperature range.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Frequency vs Load Current Load Regulation VOUT vs FBP Voltage
1000 0.6 50 VCC = 3.6V VCC = 3.6V VOUT = 16V VOUT = 16V 800 FIGURE 4 CIRCUIT 0.4 FIGURE 4 CIRCUIT 40 0.2 600 30 TAGE (V) 0 TAGE CHANGE (%) 400 20 –0.2 OUTPUT VOL SWITCHING FREQUENCY (kHz) 200 OUTPUT VOL 10 –0.4 0 –0.6 0 0 1 2 3 0 1 2 3 0 0.5 1 1.5 2 LOAD CURRENT (mA) LOAD CURRENT (mA) FBP VOLTAGE (V) 8410-1 G01 8410-1 G02 8410-1 G03 84101fc For more information www.linear.com/LT8410 3 Document Outline Description Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Features Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts