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LTC3428 Datasheet(PDF) 2 Page - Linear Technology

Part # LTC3428
Description  4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN
Download  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3428 Datasheet(HTML) 2 Page - Linear Technology

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LTC3428
2
3428fb
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
VIN, VOUT, SWA, SWB Voltage........................ –0.3 to 6V
SWA, SWB Voltage, Pulsed, <100ns...........................7V
SHDN, VC, FB Voltage .................................... –0.3 to 6V
Operating Temperature Range (Note 2)....–40°C to 85°C
Storage Temperature Range...................–65°C to 125°C
(Note 1)
TOP VIEW
DD PACKAGE
10-LEAD (3mm
3mm) PLASTIC DFN
EXPOSED PAD MUST BE SOLDERED
TO GROUND PLANE ON PCB
10
9
6
7
8
4
5
3
2
1
PGNDB
SWB
VIN
AGND
FB
PGNDA
SWA
VOUT
SHDN
VC
11
TJMAX = 125°C, θJA = 45°C/W
θJC = 3°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3428EDD#PBF
LTC3428EDD#TRPBF
LBBG
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3428EDD
LTC3428EDD#TR
LBBG
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
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/
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Startup Voltage
1.5
1.6
V
Quiescent Current, VOUT
Quiescent Current, VIN
SHDN = VIN
SHDN = VIN
100
1.3
200
2.0
μA
mA
Shutdown Current
SHDN = 0V
1
μA
Switching Frequency
Per Phase
l
0.8
1.0
1.2
MHz
FB Regulated Voltage
l
1.219
1.243
1.268
V
FB Input Current
VFB = 1.24V
150
nA
Error Amp Transconductance
170
μS
Output Adjust Voltage
1.6
5.25
V
The
l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.3V, VOUT = 5V unless otherwise noted.


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