LT1534-1 LINER [Linear Technology], LT1534-1 Datasheet - Page 2

• Manufacturer Part Number: LT1534-1
• Description: Ultralow Noise 2A Switching Regulators
• Manufacturer: LINER [Linear Technology]

ABSOLUTE
PACKAGE/ORDER
LT1534/LT1534-1
Input Voltage (V
Switch Voltage (COL) .............................................. 35V
SHDN Pin Voltage .................................................... 30V
Feedback Pin Current (FB) .................................... 10mA
Negative Feedback Pin Current (NFB) .................. 10mA
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
unless otherwise noted.
SYMBOL
Supply and Protection
V
V
I
I
V
I
Error Amplifiers
V
I
FB
2
VIN
VIN(OFF)
SHDN
FB
IN
IN(MIN)
SHDN
REF
REG
SYNC
COL
*NC
NFB
NC
R
C
FB
T
T
T
JMAX
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
*DO NOT CONNECT
PARAMETER
Recommended Operating Range
Minimum Input Voltage
Operating Supply Current
Shutdown Supply Current
Shutdown Threshold
Shutdown Input Current
Reference Voltage
Feedback Input Current
Reference Voltage Line Regulation
= 125 C,
S PACKAGE
TOP VIEW
IN
W
) .................................................. 30V
MAXIMUM
JA
= 100 C/ W
16
15
14
13
12
11
10
9
W W
PGND
COL
V
R
R
SHDN
V
GND
IN
C
VSL
CSL
INFORMATION
U
RATINGS
ORDER PART
W
LT1534CS
LT1534IS
NUMBER
U
A
CONDITIONS
2.7V V
2.7V V
2.7V V
2.7V V
Measured at Feedback Pin
V
2.7V V
FB
= 25 C, V
= V
The
REF
IN
IN
IN
IN
IN
U
(Note 1)
IN
23V, R
23V
23V
23V, V
23V, V
denotes the specifications which apply over the full operating
= 5V, V
Operating Junction Temperature Range
Maximum Junction Temperature .......................... 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec.)................. 300 C
**FOUR CORNER PINS ARE FUSED TO INTERNAL
VSL
SHDN
SHDN
CONNECT THESE FOUR PINS TO EXPANDED
DIE ATTACH PADDLE FOR HEAT SINKING.
LT1534C ................................................ 0 C to 125 C
LT1534I ............................................ – 40 C to 125 C
, R
C
PC LANDS FOR PROPER HEAT SINKING.
PGND
SYNC
= 0V
= 0V
GND
GND
= 0.9V, V
COL
CSL
R
C
FB
T
T
, R
T
JMAX
1
2
3
4
5
6
7
8
16-LEAD PLASTIC SO
T
= 17k
= 125 C,
S PACKAGE
TOP VIEW
FB
= V
JA
REF
= 50 C/ W
. COL, SHDN, NFB, all other pins open
16
15
14
13
12
11
10
9
GND
V
R
R
SHDN
V
NFB
GND
IN
C
VSL
CSL
1.235
1.215
MIN
2.7
0.4
1.250
1.250
0.003
2.55
TYP
250
0.8
– 2
12
12
12
ORDER PART
LT1534CS-1
LT1534IS-1
NUMBER
1.275
1.265
MAX
0.03
900
2.7
1.2
23
30
50
30
UNITS
%/V
mA
nA
V
V
A
A
V
A
V
V