LT1534C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1534C' PDF : 16 Pages View PDF
LT1534/LT1534-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage (VIN) .................................................. 30V
Switch Voltage (COL) .............................................. 35V
SHDN Pin Voltage .................................................... 30V
Feedback Pin Current (FB) .................................... 10mA
Negative Feedback Pin Current (NFB) .................. ±10mA
Operating Junction Temperature Range
LT1534C ................................................ 0°C to 125°C
LT1534I ............................................ – 40°C to 125°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C
PACKAGE/ORDER INFORMATION
NC 1
COL 2
*NC 3
SYNC 4
CT 5
RT 6
FB 7
NFB 8
TOP VIEW
16 PGND
15 COL
14 VIN
13 RVSL
12 RCSL
11 SHDN
10 VC
9 GND
ORDER PART
NUMBER
LT1534CS
LT1534IS
S PACKAGE
16-LEAD PLASTIC SO
*DO NOT CONNECT
TJMAX = 125°C, θJA = 100°C/ W
Consult factory for Military grade parts.
GND 1
COL 2
PGND 3
SYNC 4
CT 5
RT 6
FB 7
GND 8
TOP VIEW
16 GND
15 VIN
14 RVSL
13 RCSL
12 SHDN
11 VC
10 NFB
9 GND
S PACKAGE
16-LEAD PLASTIC SO
**FOUR CORNER PINS ARE FUSED TO INTERNAL
DIE ATTACH PADDLE FOR HEAT SINKING.
CONNECT THESE FOUR PINS TO EXPANDED
PC LANDS FOR PROPER HEAT SINKING.
TJMAX = 125°C, θJA = 50°C/ W
ORDER PART
NUMBER
LT1534CS-1
LT1534IS-1
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C, VIN = 5V, VC = 0.9V, VFB = VREF. COL, SHDN, NFB, all other pins open
unless otherwise noted.
SYMBOL
PARAMETER
Supply and Protection
VIN
VIN(MIN)
IVIN
IVIN(OFF)
Recommended Operating Range
Minimum Input Voltage
Operating Supply Current
Shutdown Supply Current
VSHDN
Shutdown Threshold
ISHDN
Shutdown Input Current
Error Amplifiers
VREF
Reference Voltage
IFB
FBREG
Feedback Input Current
Reference Voltage Line Regulation
CONDITIONS
2.7V ≤ VIN ≤ 23V, RVSL, RCSL, RT = 17k
2.7V ≤ VIN ≤ 23V, VSHDN = 0V
2.7V ≤ VIN ≤ 23V, VSHDN = 0V
2.7V ≤ VIN ≤ 23V
Measured at Feedback Pin
VFB = VREF
2.7V ≤ VIN ≤ 23V
MIN TYP MAX
UNITS
q 2.7
23
V
q
2.55
2.7
V
q
12
30
mA
q
12
50
µA
12
30
µA
q 0.4
0.8
1.2
V
–2
µA
1.235 1.250 1.265
V
q 1.215 1.250 1.275
V
q
250 900
nA
q
0.003 0.03
%/V
2
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