Datasheet LT1767, LT1767-1.8, LT1767-2.5, LT1767-3.3, LT1767-5 (Analog Devices) - 4

LT1767/LT1767-1.8/ LT1767-2.5/LT1767-3.3/LT1767-5
elecTrical characTerisTics Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Minimum input voltage is defined as the voltage where the internal may cause permanent damage to the device. Exposure to any Absolute regulator enters lockout. Actual minimum input voltage to maintain a Maximum Rating condition for extended periods may affect device regulated output will depend on output voltage and load current. See reliability and lifetime. Applications Information.
Note 2:
The LT1767E is guaranteed to meet performance specifications
Note 4:
Current flows into the BOOST pin only during the on period of the from 0°C to 125°C. Specifications over the –40°C to 125°C operating switch cycle. junction temperature range are assured by design, characterization and correlation with statistical process controls.
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. FB vs Temperature (Adj) Switch On Voltage Drop Oscillator Frequency
1.22 400 1.50 125°C 350 1.45 1.21 300 25°C 1.40 250 1.35 –40°C 1.20 200 1.30 FB VOLTAGE (V) 150 1.25 FREQUENCY (MHz) 1.19 SWITCH VOLTAGE (mV) 100 1.20 50 1.15 1.18 0 1.10 –50 –25 0 25 50 75 100 125 0 0.5 1 1.5 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 1767 G01 SWITCH CURRENT (A) 1767 G02 TEMPERATURE (°C) 1767 G03
SHDN Threshold vs Temperature SHDN Supply Current vs VIN SHDN IP Current vs Temperature
1.40 7 –12 SHDN = 0V 6 1.38 –10 SHUTTING DOWN 5 –8 1.36 4 –6 3 INPUT (µA) 1.34 CURRENT (µA) V IN SHDN –4 SHDN THRESHOLD (V) 2 STARTING UP 1.32 1 –2 1.30 0 0 –50 –25 0 25 50 75 100 125 0 5 10 15 20 25 30 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) VIN (V) TEMPERATURE (°C) 1767 G04 1767 G05 1767 G06 1767fb 4 For more information www.linear.com/LT1767 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Application