Datasheet LT1767, LT1767-1.8, LT1767-2.5, LT1767-3.3, LT1767-5 (Analog Devices) - 5
Manufacturer | Analog Devices |
Description | Monolithic 1.5A, 1.25MHz Step-Down Switching Regulators |
Pages / Page | 20 / 5 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
File Format / Size | PDF / 441 Kb |
Document Language | English |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Minimum Input V. Minimum Input V oltage, 3.3V Out
Model Line for this Datasheet
Text Version of Document
LT1767/LT1767-1.8/ LT1767-2.5/LT1767-3.3/LT1767-5
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Minimum Input V Minimum Input V oltage, 3.3V Out oltage, 3.3V Out SHDN Supply Current Input Supply Current
7.0 300 1200 BOOST DIODE TIED TO VOUT 6.5 V BOOST DIODE TIED TO V IN = 15V IN 250 1000 6.0 5.5 MINIMUM 200 800 INPUT TO START 5.0 VOLTAGE TAGE (V) 150 600 4.5 CURRENT (µA) CURRENT (µA) 4.0 INPUT VOL V IN 100 V IN 400 3.5 TO RUN 50 200 3.0 2.5 0 0 1 10 100 1k 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 5 10 15 20 25 30 LOAD CURRENT (mA) SHUTDOWN VOLTAGE (V) INPUT VOLTAGE (V) 1767 G07 1767 G08 1767 G09
Maximum Load Current, Maximum Load Current, Current Limit Foldback VOUT = 5V VOUT = 2.5V
2.0 40 1.5 1.5 FB INPUT CURRENT (µA) 1.3 L = 4.7µH 1.5 30 L = 4.7µH 1.3 SWITCH CURRENT 1.1 L = 2.2µH 1.0 20 1.1 0.9 L = 2.2µH L = 1.5µH OUTPUT CURRENT (A) OUTPUT CURRENT (A) 0.9 SWITCH PEAK CURRENT (A) 0.5 10 0.7 FB CURRENT L = 1.5µH 0 0 0.5 0.7 0 0.2 0.4 0.6 0.8 1 1.2 0 5 10 15 20 25 0 5 10 15 20 25 FEEDBACK VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 1767 G10 1767 G11 1767 G12 1767fb For more information www.linear.com/LT1767 5 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Application