LT1370 Linear Technology, LT1370 Datasheet - Page 2

• Manufacturer Part Number: LT1370
• Description: 500kHz High Efficiency 6A Switching Regulator
• Manufacturer: Linear Technology

A
Supply Voltage ....................................................... 30V
Switch Voltage
S/S, SHDN, SYNC Pin Voltage ................................ 30V
Feedback Pin Voltage (Transient, 10ms) .............. 10V
Feedback Pin Current ........................................... 10mA
Negative Feedback Pin Voltage
LT1370
PACKAGE/ORDER I FOR ATIO
Consult factory for Military grade parts.
V
SYMBOL
I
V
I
g
2
ELECTRICAL C
V
FB
NFB
m
NFR
IN
REF
BSOLUTE
LT1370 ............................................................... 35V
LT1370HV .......................................................... 42V
(Transient, 10ms) ............................................. 10V
= 5V, V
WITH PACKAGE SOLDERED TO 0.5 INCH
AREA OVER BACKSIDE GROUND PLANE OR INTERNAL
POWER PLANE.
> 40 C/W DEPENDING ON MOUNTING TECHNIQUE
GND
T
TAB
JMAX
IS
PARAMETER
Reference Voltage
Feedback Input Current
Reference Voltage Line Regulation
Negative Feedback Reference Voltage
Negative Feedback Input Current
Negative Feedback Reference Voltage
Line Regulation
Error Amplifier Transconductance
Error Amplifier Source Current
Error Amplifier Sink Current
C
= 125 C,
7-LEAD PLASTIC DD
= 0.6V, V
FRONT VIEW
R PACKAGE
JA
CAN VARY FROM 20 C/W TO
JA
= 30 C/W,
W
FB
7
6
5
4
3
2
1
= V
A
HARA TERISTICS
XI
REF
JC
= 4 C/W
, V
W
2
COPPER
SW
V
NFB
V
GND
S/S
FB
V
U
IN
SW
C
C
U
, S/S and NFB pins open, T
W
R
A
W
ORDER PART
TI
LT1370CR
LT1370HVCR
LT1370IR
LT1370HVIR
NUMBER
U
G
S
CONDITIONS
Measured at Feedback Pin
V
V
2.7V V
Measured at Negative Feedback Pin
Feedback Pin Open, V
V
2.7V V
V
V
C
FB
NFB
FB
FB
I
C
U
= 0.8V
= V
= 25 A
= V
= V
= V
A
REF
REF
REF
= 25 C unless otherwise noted.
IN
NFR
IN
+ 150mV, V
– 150mV, V
GND
TAB
25V, V
25V, V
Operating Ambient Temperature Range ...... 0 C to 70 C
Operating Junction Temperature Range
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
IS
Commercial .......................................... 0 C to 125 C
Industrial ......................................... – 40 C to 125 C
C
C
T
JMAX
= 0.8V
= 0.8V
C
C
C
= 0.8V
= 1.5V
= 1.5V
= 125 C,
7-LEAD TO-220
FRONT VIEW
T7 PACKAGE
JA
= 50 C/W,
7
6
5
4
3
2
1
– 2.525
– 2.560
JC
1.230
1.225
1100
MIN
– 45
700
120
= 4 C/W
V
NFB
V
GND
S/S
FB
V
– 2.48
– 2.48
1.245
1.245
IN
SW
C
1500
1400
0.01
0.01
TYP
– 30
250
200
LT1370CT7
LT1370HVCT7
LT1370IT7
LT1370HVIT7
ORDER PART
NUMBER
– 2.435
– 2.400
1.260
1.265
1900
2300
2400
MAX
0.03
0.05
550
900
– 15
350
UNITS
%/V
mho
mho
%/V
nA
nA
V
V
V
V
A
A
A