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LTC3537
2
3537fd
 PIN CONFIGURATION
 ABSOLUTE MAXIMUM RATINGS
V
INB
 and V
INL
 Voltage ...................................0.3V to 6V
SW DC Voltage .............................................0.3V to 6V
SW Pulsed (<100ns) Voltage .......................0.3V to 7V
FBB, FBL, PGDB, PGDL Voltage ...................0.3V to 6V
MODE, ENBST, ENLDO Voltage ...................0.3V to 6V
LBI and LBO Voltage ....................................0.3V to 6V
V
OUTB
, V
OLDO
 ...............................................0.3V to 6V
Operating Temperature (Notes 2, 5) .........40癈 to 85癈
Junction Temperature ...........................................125癈
Storage Temperature Range ...................65癈 to 125癈
(Note 1)
16
15
14
13
5
6
7
8
TOP VIEW
UD PACKAGE
16-LEAD (3mm ?3mm) PLASTIC QFN
9
17
10
11
12
4
3
2
1
MODE
LBI
SGND
V
INB
V
INL
V
OLDO
FBL
FBB
T
JMAX
 = 125癈, ?/DIV>
JA
 = 68癈/W (Note 6)
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
 ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3537EUD#PBF
LTC3537EUD#TRPBF   LDBD
16-Lead (3mm ?3mm) Plastic QFN    40癈 to 85癈
Consult LTC Marketing for parts speci ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based  nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/ 
For more information on tape and reel speci cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
 
The l denotes the speci cations which apply over the full operating
temperature range, otherwise speci cations are at T
A
 = 25癈. V
INB
 = 1.2V, V
OUTB
 = 3.3V, unless otherwise noted.
SYMBOL  PARAMETER
CONDITIONS
MIN   TYP   MAX   UNITS
Boost Converter
V
INMIN
Minimum Start-Up Voltage   I
LOAD
 = 1mA
0.68   0.8
V
V
OUTB
Output Voltage Range
l   1.5
5.25
V
V
FBB
Feedback Voltage
l  1.179   1.21   1.240
V
I
FBB
Feedback Input Current
1    50
nA
I
QSHDN
Quiescent Current - Shutdown V
ENBST
 = V
ENLDO
 = 0V, Not Including SW Leakage,
V
OUTB
 = 0V
0.02    1
糀
I
QACTIVE
Quiescent Current - Active   Measured on V
OUTB
, Nonswitching, MODE = 1.2V,
V
ENLDO
 = 0V
300   500
糀
I
QBURST
Quiescent Current - Burst    Measured on V
OUTB
, FBB >1.24V, MODE = 1.2V,
V
ENLDO
 = 0V
15
糀
I
NLEAK
NMOS Switch Leakage Current V
SW
 = 5V
0.1    5
糀
I
PLEAK
PMOS Switch Leakage Current V
SW
 = 5V, V
OUTB
 = 0V
0.1    10
糀
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