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LT1533CS Datenblatt(PDF) 2 Page - Linear Technology

Teilenummer LT1533CS
Bauteilbeschribung  Ultralow Noise 1A Switching Regulator
PDF  20 Pages
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Hersteller  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1533CS Datenblatt(HTML) 2 Page - Linear Technology

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LT1533
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage (VIN) .................................................. 30V
Switch Voltage (COL A, COL B) ............................... 30V
SHDN Pin Voltage .................................................... 30V
Feedback Pin Current ............................................ 10mA
Negative Feedback Pin Current ............................
±10mA
Storage Temperature Range ................. – 65
°C to 150°C
Maximum Junction Temperature ......................... 125
°C
Operating Junction Temperature Range
LT1533C ............................................... 0
°C to 100°C
LT1533I ............................................ – 40
°C to 100°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
LT1533CS
LT1533IS
PACKAGE/ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
VIN = 5V, VC = 0.9V, VFB = VREF. COL A, COL B, SHDN, NFB, DUTY pins open, unless otherwise noted.
Consult factory for Military grade parts.
TOP VIEW
S PACKAGE
16-LEAD NARROW PLASTIC SO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
COL A
DUTY
SYNC
CT
RT
FB
NFB
PGND
COL B
VIN
RVSL
RCSL
SHDN
VC
GND
TJMAX = 125°C, θJA = 100°C/ W
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply and Protection
VIN
Recommended Operating Range
q
2.7
23
V
VIN(MIN)
Minimum Input Voltage
q
2.55
2.7
V
IVIN
Supply Current
2.7V
≤ VIN ≤ 23V, RVSL, RCSL, RT = 17k
q
12
18
mA
IVIN(OFF)
Shutdown Supply Current
2.7V
≤ VIN ≤ 23V, VSHDN = 0V
q
12
30
µA
VSHDN
Shutdown Threshold
2.7V
≤ VIN ≤ 23V
q
0.4
0.8
1.2
V
ISHDN
Shutdown Input Current
–2
µA
Error Amplifiers
VREF
Reference Voltage
Measured at Feedback Pin
1.235
1.250
1.265
V
q
1.215
1.250
1.275
V
IFB
Feedback Input Current
VFB = VREF
q
250
900
nA
FBREG
Reference Voltage Line Regulation
2.7V
≤ VIN ≤ 23V
q
0.003
0.03
%/V
VNFR
Negative Feedback Reference Voltage
Measured at Negative Feedback Pin with
q
– 2.550
– 2.500
– 2.420
V
Feedback Pin Open
INFR
Negative Feedback Input Current
VNFB = VNFR
q
–37
– 25
µA
NFBREG
Negative Feedback Reference Voltage
2.7V
≤ VIN ≤ 23V
q
0.002
0.05
%/V
Line Regulation



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