Datasheet

LT3483/LT3483A
3
3483fc
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to any Absolute Maximum
Rating condition for extended periods may affect device reliability and
lifetime.
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 3.6V, V
SHDN
= 3.6V unless otherwise specified.
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Operating Range 2.5 16 V
V
IN
Undervoltage Lockout 2 2.4 V
FB Comparator Trip Voltage to GND (V
FB
) FB Falling
●
0 5 12 mV
FB Output Current (Note 3) FB = V
FB
– 5mV
●
–10.2 –10 –9.7 µA
FB Comparator Hysteresis FB Rising 10 mV
Quiescent Current in Shutdown V
SHDN
= GND 1 µA
Quiescent Current (Not Switching) FB = –0.05V 40 50 µA
I
FB
Line Regulation 2.5V ≤ V
IN
≤ 16V 0.07 %/V
Switch Off-Time 300 ns
Switch Current Limit LT3483
LT3483A
170
340
200
400
230
460
mA
mA
Switch V
CESAT
I
SW
= 150mA to GND 200 mV
Switch Leakage Current SW = 40V 1 µA
D Pin Current Limit 350 mA
Rectifier Leakage Current D = – 40V 4 µA
Rectifier Forward Drop I
D
= 150mA to GND 0.64 V
SHDN Input Low Voltage 0.4 V
SHDN Input High Voltage 1.5 V
SHDN Pin Current 6 10 µA
Note 2: The LT3483E/LT3483AE are guaranteed to meet specifications from
0°C to 85°C. Specifications over the –40°C to 85°C operating temperature
range are assured by design, characterization and correlation with
statistical process controls. The LT3483I/LT3483AI are guaranteed to meet
specifications over the –40°C to 125°C operating temperature range.
Note 3: Current flows out of the pin.