lt1339 Linear Technology Corporation, lt1339 Datasheet - Page 2

• Manufacturer Part Number: lt1339
• Description: High Power Synchronous Dc/dc Controller
• Manufacturer: Linear Technology Corporation

A
Supply Voltages
Input Voltages
Maximum Currents
Maximum Temperatures
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
LT1339
(Note 1)
12V
SYMBOL
Supply and Protection
I
I
V
V
I
V
5V Reference
V
I
I
ELECTRICAL C
2
12VIN
BOOST
SS
REF5
SC
RUN/SHDN
SSHYST
UVLO
REF5
BSOLUTE
Power Supply Voltage (12V
Topside Supply Voltage (V
Topside Reference Pin Voltage (TS) ......– 0.3V to 60V
Sense Amplifier Input Common Mode ...– 0.3V to 60V
RUN/SHDN Pin Voltage ...................... – 0.3V to 12V
All Other Inputs .......................................– 0.3V to 7V
5V Reference Output Current............................ 65mA
Operating Ambient Temperature Range
IN
V
LT1339C ............................................ 0 C to 70 C
LT1339I ......................................... – 40 C to 85 C
= V
TS
BOOST
PARAMETER
DC Active Supply Current (Note 2)
DC Standby Supply Current
DC Active Supply Current (Note 2)
DC Standby Supply Current
Shutdown Rising Threshold
Shutdown Threshold Hysteresis
Soft Start Charge Current
Undervoltage Lockout Threshold - Falling
Undervoltage Lockout Threshold - Rising
Undervoltage Lockout Hysteresis
5V Reference Voltage
5V Reference Line Regulation
5V Reference Load Range - DC
5V Reference Load Regulation
5V Reference Short-Circuit Current
– 0.3V to V
= 12V, V
W
TS
C
A
HARA TERISTICS
= 2V, TS = 0V, V
+ 20V (V
XI
W
BOOST
IN
U
Pulse
C
)...............– 0.3V to 20V
MAX
W
)
FB
= 75V)
R
= V
A
REF
TI
= 1.25V, C
U
G
S
CONDITIONS
V
V
Line, Load and Temperature
10V 12V
0 I
RUN/SHDN
RUN/SHDN
TG
REF5
IN
= C
IN
< 0.5V
< 0.5V
20mA
BG
PACKAGE/ORDER I FOR ATIO
Consult factory for Military grade parts.
= 3000pF, T
15V
SL/ADJ
5V
SGND
20-LEAD PDIP
SYNC
N PACKAGE
V
I
AVG
V
REF
REF
CT
SS
V
FB
T
C
T
JMAX
JMAX
10
1
2
3
4
5
6
7
8
9
= 125 C,
A
= 125 C,
= 25 C unless otherwise noted.
TOP VIEW
20-LEAD PLASTIC SO WIDE
JA
JA
= 85 C/W (SW)
= 70 C/W (N)
SW PACKAGE
20
19
18
17
16
15
14
13
12
11
MIN
1.15
8.20
4.75
200
V
TG
TS
12V
BG
PGND
PHASE
RUN/SHDN
SENSE
SENSE
BOOST
4
IN
–
+
U
– 1.25
1.25
9.00
9.35
5.00
TYP
150
350
2.2
14
25
45
0
8
3
ORDER PART
LT1339CN
LT1339CSW
LT1339IN
LT1339ISW
W
NUMBER
MAX
1.35
9.75
9.95
5.25
250
– 2
20
14
10
20
5
sn1339 1339fas
UNITS
mV/V
U
V/A
mA
mA
mV
mV
mA
mA
mA
A
A
V
A
V
V
V