LTC3428_15 Datasheet, PDF (2/12 Pages) Linear Technology – 4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN

LTC3428
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN, V_OUT, SWA, SWB Voltage........................ –0.3 to 6V
SWA, SWB Voltage, Pulsed, <100ns...........................7V
SHDN, V_C, FB Voltage .................................... –0.3 to 6V
Operating Temperature Range (Note 2)....–40°C to 85°C
Storage Temperature Range...................–65°C to 125°C
PIN CONFIGURATION
TOP VIEW
PGNDA 1
SWA 2
V_OUT 3
SHDN 4
V_C 5
10 PGNDB
9 SWB
11
8 V_IN
7 AGND
6 FB
DD PACKAGE
10-LEAD (3mm s 3mm) PLASTIC DFN
EXPOSED PAD MUST BE SOLDERED
TO GROUND PLANE ON PCB
T_JMAX = 125°C, θ_JA = 45°C/W
θ_JC = 3°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3428EDD#PBF
LTC3428EDD#TRPBF LBBG
10-Lead (3mm × 3mm) Plastic DFN
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3428EDD
LTC3428EDD#TR
LBBG
10-Lead (3mm × 3mm) Plastic DFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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
TEMPERATURE RANGE
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.3V, V_OUT = 5V unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX
Minimum Startup Voltage
Quiescent Current, V_OUT
Quiescent Current, V_IN
Shutdown Current
SHDN
SHDN
=
=
V_IN
V_IN
SHDN = 0V
1.5
1.6
100
200
1.3
2.0
1
Switching Frequency
Per Phase
l 0.8
1.0
1.2
FB Regulated Voltage
l 1.219 1.243 1.268
FB Input Current
Error Amp Transconductance
V_FB = 1.24V
1
50
170
Output Adjust Voltage
1.6
5.25
UNITS
V
μA
mA
μA
MHz
V
nA
μS
V
3428fb
2