Datasheet

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°C to 85°C
Junction Temperature ........................................... 125°C
Storage Temperature Range ................... –65°C to 125°C
(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
1MODE
LBI
SGND
V
INB
V
INL
V
OLDO
FBL
FBB
LBO PGND SW V
OUTB
PGDB
ENBST
PGDL
ENLDO
T
JMAX
= 125°C, θ
JA
= 68°C/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°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. 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 150 nA
I
QSHDN
Quiescent Current - Shutdown V
ENBST
= V
ENLDO
= 0V, Not Including SW Leakage,
V
OUTB
= 0V
0.02 1 µA
I
QACTIVE
Quiescent Current - Active Measured on V
OUTB
, Nonswitching, MODE = 1.2V,
V
ENLDO
= 0V
300 500 µA
I
QBURST
Quiescent Current - Burst Measured on V
OUTB
, FBB >1.24V, MODE = 1.2V,
V
ENLDO
= 0V
15 µA
I
NLEAK
NMOS Switch Leakage Current V
SW
= 5V 0.1 5 µA
I
PLEAK
PMOS Switch Leakage Current V
SW
= 5V, V
OUTB
= 0V 0.1 10 µA