lt1303-5 Linear Technology Corporation, lt1303-5 Datasheet - Page 2

• Manufacturer Part Number: lt1303-5
• Description: Micropower High Efficiency Dc/dc Converters With Low-battery Detector Adjustable And Fixed 5v
• Manufacturer: Linear Technology Corporation

ABSOLUTE
LT1303/LT1303-5
ELECTRICAL C
SYMBOL
I
V
DC
t
V
V
V
I
The
temperature range.
2
V
SW1 Voltage ............................................................ 25V
Sense Voltage (LT1303-5) ....................................... 20V
FB Voltage (LT1303) ................................................ 10V
Shutdown Voltage ................................................... 10V
LBO Voltage ............................................................. 10V
LBI Voltage .............................................................. 10V
Maximum Power Dissipation ............................. 500mW
Operating Temperature Range ..................... 0 C to 70 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
Q
ON
SHDN
IN
CESAT
SHDNH
SHDNL
IN
Voltage .............................................................. 10V
denotes specifications which apply over the 0 C to 70 C operating
Quiescent Current
Input Voltage Range
Feedback Voltage
Output Sense Voltage
Comparator Hysteresis
Output Hysteresis
Feedback Pin Bias Current
Oscillator Frequency
Oscillator TC
Maximum Duty Cycle
Switch On Time
Output Line Regulation
Switch Saturation Voltage
Switch Leakage Current
Peak Switch Current
LBI Trip Voltage
LBI Input Bias Current
LBO Output Low
LBO Leakage Current
Shutdown Pin High
Shutdown Pin Low
Shutdown Pin Bias Current
PARAMETER
W
MAXIMUM
HARA TERISTICS
W W
C
RATINGS
CONDITIONS
V
V
LT1303
LT1303-5
LT1303 (Note 1)
LT1303-5 (Note 1)
LT1303, V
Current Limit Not Asserted
Current Limit Not Asserted
1.8V < V
I
V
V
V
V
I
V
V
V
V
SW
LOAD
SHDN
SHDN
SW
IN
IN
LBI
LBI
SHDN
SHDN
SHDN
= 2V
= 5V
= 700mA
= 1V
= 1.3V, V
= 5V, Switch Off
= 100 A
= 0.5V, V
= 1.8V
= 5V
= 2V
= 0V
U
IN
FB
< 6V
= 1V
LBO
SEL
T
= 5V
A
= 5V, V
= 25 C, V
SENSE
PACKAGE/ORDER
Consult factory for Industrial and Military grade parts.
Note 1: Hysteresis specified is DC. Output ripple may be higher if output
capacitance is insufficient or capacitor ESR is excessive.
IN
FB (SENSE)*
= 5.5V
= 2.0V, unless otherwise noted.
SHDN
GND
T
T
LBO
JMAX
JMAX
= 100 C,
1
2
3
4
= 100 C,
8-LEAD PLASTIC SO
*FIXED VERSION
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
TOP VIEW
JA
JA
= 130 C/W (N8)
= 150 C/W (S8)
8
7
6
5
PGND
SW
V
LBI
1.22
0.75
0.65
1.21
MIN
120
1.8
2.0
4.8
1.8
IN
75
INFORMATION
U
1.55
1.24
0.06
1.24
0.11
TYP
120
155
130
0.2
0.1
0.1
8.0
3.0
0.1
S8 PART MARKING
5.0
5.6
1.0
0.9
22
86
7
6
7
7
ORDER PART
LT1303CN8
LT1303CS8
LT1303CN8-5
LT1303CS8-5
NUMBER
W
1303
13035
MAX
1.26
12.5
0.15
1.25
1.15
1.27
200
185
200
5.2
0.4
0.5
15
50
20
95
10
20
20
5
1
UNITS
U
%/ C
%/V
kHz
mV
mV
mV
nA
nA
%
A
A
V
V
V
V
A
A
A
V
V
A
V
V
A
A
A
s