LTC3426_15 Datasheet, PDF (2/12 Pages) Linear Technology – 1.2MHz Step-Up DC/DC Converter in SOT-23

LTC3426
ABSOLUTE AXI U RATI GS
(Note 1)
V_IN Voltage ................................................. –0.3V to 6V
SW Voltage .................................................. –0.3V to 6V
SHDN, FB Voltage ....................................... –0.3V to 6V
V_OUT ........................................................... –0.3V to 6V
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)................ 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SW 1
GND 2
FB 3
6 V_IN
5 V_OUT
4 SHDN
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T_JMAX = 125°C, θ_JA = 165°C/W, θ_JC = 102°C/W
ORDER PART NUMBER S6 PART NUMBER
LTC3426ES6
LTAJT
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
CO VERTER CHARACTERISTICS _{The ● denotes the specifications which apply over the full operating}
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 1.8V, V_OUT = 3.3V, unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
Output Voltage Adjust Range
SHDN = V_IN
1.6
V
2.25
5
V
Feedback Voltage
● 1.173
1.22
1.247
V
Feedback Input Current
Quiescent Current (Shutdown)
Quiescent Current
Switch Leakage
Switch On Resistance
Current Limit
V_FB = 1.23V
V_SHDN = 0V, Not Including Switch Leakage
SHDN = V_IN, Not Switching
V_SW = 5V
V_OUT = 3.3V
V_OUT = 5V
●
2
0.1
µA
1
µA
600
1000
µA
0.2
10
µA
0.11
Ω
0.10
Ω
2.3
A
Maximum Duty Cycle
Switching Frequency
V_FB = 1.15V
80
85
● 0.85
1.2
%
1.5
MHz
SHDN Input High
1
V
SHDN Input Low
0.4
V
SHDN Input Current
SHDN = 5.5V
1
µA
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.
Note 2: The LTC3426 is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature are assured by design, characterization and correlation with
statistical process controls.
Note 3: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
3426fa
2