LT3468 Linear Technology, LT3468 Datasheet - Page 2

• Manufacturer Part Number: LT3468
• Description: Photoflash Capacitor Charger in ThinSOT
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LT3468/LT3468-1
(Note 1)
V
SW Voltage ................................................ –0.4V to 50V
CHARGE Voltage ...................................................... 10V
DONE Voltage .......................................................... 10V
Current into DONE Pin .......................................... 1mA
Maximum Junction Temperature .......................... 125 C
Operating Temperature Range (Note 2) ...–40 C to 85 C
Storage Temperature Range ..................–65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
are for both the LT3468 and LT3468-1 unless otherwise noted.
PARAMETER
Quiescent Current
Input Voltage Range
Switch Current Limit
Switch V
V
V
DCM Comparator Trip Voltage
CHARGE Pin Current
Switch Leakage Current
CHARGE Input Voltage High
CHARGE Input Voltage Low
DONE Output Signal High
DONE Output Signal Low
DONE Leakage Current
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3468E/LT3468E-1 are guaranteed to meet performance
specifications from 0 C to 70 C. Specifications over the –40 C to 85 C
2
ELECTRICAL CHARACTERISTICS
OUT
OUT
IN
Voltage .............................................................. 16V
Comparator Overdrive
Comparator Trip Voltage
CESAT
W
W W
U
A
= 25 C. V
CONDITIONS
Not Switching
V
LT3468 (Note 3)
LT3468-1
LT3468, I
LT3468-1, I
Measured as V
300ns Pulse Width
Measured as V
V
V
V
100k from V
33 A into DONE Pin
V
CHARGE
CHARGE
CHARGE
IN
DONE
The
= V
= 3V, DONE NPN Off
SW
IN
= 0V
= 3V
= 0V
SW
= 5V, in Shutdown
denotes the specifications which apply over the full operating
SW
= 3V, V
= 1A
IN
SW
SW
= 400mA
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
operating temperature range are assured by design, characterization and
correlation with statistical process.
Note 3: Specifications are for static test. Current limit in actual application
will be slightly higher.
to DONE
– V
– V
DONE 3
CHARGE
GND 2
IN
IN
SW 1
T
5-LEAD PLASTIC SOT-23
JMAX
= 125 C,
= V
S5 PACKAGE
TOP VIEW
IN
unless otherwise noted. (Note 2) Specifications
JA
= 256 C/W
5 VIN
4 CHARGE
0.45
MIN
2.5
1.1
31
10
1
U
0.55
31.5
0.01
TYP
330
150
200
100
ORDER PART
LT3468ES5
LT3468ES5-1
1.2
36
15
20
5
0
0
3
MARKING
NUMBER
S5 PART
LTAEC
LTAGQ
W
MAX
0.65
430
200
400
200
100
1.3
0.1
0.3
16
32
80
40
8
1
1
UNITS
34681i
U
mA
mV
mV
mV
mV
mV
nA
A
A
A
V
V
A
A
A
V
V
V