LTC3539_15 Datasheet, PDF (2/14 Pages) Linear Technology – 2A, 1MHz/2MHz Synchronous Step-Up DC/DC Converters

LTC3539/LTC3539-2
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN Voltage.................................................... –0.3V to 6V
SW Voltage
DC............................................................. –0.3V to 6V
Pulsed <100ns.......................................... –0.3V to 7V
SHDN, FB, MODE Voltage............................. –0.3V to 6V
V_OUT.............................................................. –0.3V to 6V
Operating Temperature (Notes 2, 5)..........–40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
SW 1
8 V_OUT
PGND 2
7 MODE
9
GND 3
6 FB
V_IN 4
5 SHDN
DCB PACKAGE
8-LEAD (2mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 64°C/W (NOTE 6)
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3539EDCB#PBF
LTC3539EDCB#TRPBF LDCS
8-Lead (2mm × 3mm) Plastic DFN
LTC3539EDCB-2#PBF
LTC3539EDCB-2#TRPBF LDPH
8-Lead (2mm × 3mm) Plastic DFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified
temperature range of –40°C to 85°C, otherwise specifications are at T_A = 25°C. V_IN = 1.2V, V_OUT = 3.3V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
After Start-Up
0.5
5
V
Minimum Start-Up Voltage
Output Voltage Adjust Range
I_LOAD = 1mA, V_OUT = 0V
0.7
0.88
V
l 1.5
5.25
V
Feedback Voltage
l 1.182 1.200 1.218
V
Feedback Input Current
V_FB = 1.2V
1
50
nA
Quiescent Current - Shutdown
V_SHDN = 0V, Not Including Switch Leakage, V_OUT = 0V
0.01
1
µA
Quiescent Current - Active
Measured on V_OUT, Non-Switching
300
500
µA
Quiescent Current - Burst
Measured on V_OUT, FB > 1.230V
10
18
µA
N-Channel MOSFET Switch Leakage Current V_SW = 5V
0.1
10
µA
P-Channel MOSFET Switch Leakage Current V_SW = 5V, V_OUT = 0V
0.1
20
µA
N-Channel MOSFET Switch On Resistance V_OUT = 3.3V
0.09
Ω
P-Channel MOSFET Switch On Resistance V_OUT = 3.3V
0.125
Ω
N-Channel MOSFET Current Limit
l
2
2.6
A
35392fc
2
For more information www.linear.com/3539/3539-2