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LT1573CS8 数据表(PDF) 2 Page - Linear Technology

部件名 LT1573CS8
功能描述  Low Dropout PNP Regulator Driver
PDF  16 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT1573CS8 数据表(HTML) 2 Page - Linear Technology

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LT1573
ORDER PART
NUMBER
S8 PART MARKING
157333
1573I
1573
157325
157328
Consult factory for Military grade parts.
The q denotes specifications that apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. VIN = 5V, VDRIVE = 3V, unless otherwise noted.
(Note 1)
Input Pin Voltage (VIN to GND) ............................... 10V
Drive Pin Voltage (VDRIVE to GND).......................... 10V
Output Pin Voltage (VOUT to GND) .......................... 10V
Shutdown Pin Voltage (VSHDN to GND) .................. 10V
Operating Junction Temperature Range
LT1573C ............................................... 0
°C to 125°C
LT1573I ............................................ –40
°C to 125°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec.)................ 300
°C
TOP VIEW
COMP
VOUT
VIN
DRIVE
FB
LATCH
SHDN
GND
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
TJMAX = 125°C, θJA = 85°C/ W
LT1573CS8
LT1573CS8-2.5
LT1573CS8-2.8
LT1573CS8-3.3
LT1573IS8
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
LT1573 Reference Voltage (Adjustable)(Note 2)
IDRIVE = 20mA, TJ = 25°C
1.252
1.265
1.278
V
5mA < IDRIVE < 250mA, 3V < VIN < 7V,
q
1.225
1.265
1.305
V
1.5V < VDRIVE < 7V
LT1573-3.3 Output Voltage (Note 2)
IDRIVE = 20mA. TJ = 25°C
3.267
3.3
3.333
V
5mA < IDRIVE < 250mA, 3.5V < VIN < 7V,
q
3.234
3.3
3.366
V
1.5V < VDRIVE < 7V
LT1573-2.8 Output Voltage (Note 2)
IDRIVE = 20mA, TJ = 25°C
2.772
2.8
2.828
V
5mA < IDRIVE < 250mA, 3V < VIN < 7V,
q
2.744
2.8
2.856
V
1.5V < VDRIVE < 7V
LT1573-2.5 Output Voltage (Note 2)
IDRIVE = 20mA, TJ = 25°C
2.475
2.5
2.525
V
5mA < IDRIVE < 250mA, 3V < VIN < 7V,
q
2.450
2.5
2.550
V
1.5V < VDRIVE < 7V
Line Regulation
LT1573 (VFB)IDRIVE = 20mA, 3V < VIN < 7V
q
0.17
2
mV
LT1573-3.3 (VOUT)IDRIVE = 20mA, 3.5V < VIN < 7V
q
0.34
5
mV
LT1573-2.8 (VOUT)IDRIVE = 20mA, 3V < VIN < 7V
q
0.34
4
mV
LT1573-2.5 (VOUT)IDRIVE = 20mA, 3V < VIN < 7V
q
0.25
4
mV
Load Regulation
LT1573 (VFB)
∆IDRIVE = 20mA to 250mA
q
730
mV
LT1573-3.3 (VOUT)
∆IDRIVE = 20mA to 250mA
q
18
40
mV
LT1573-2.8 (VOUT)
∆IDRIVE = 20mA to 250mA
q
15
34
mV
LT1573-2.5 (VOUT)
∆IDRIVE = 20mA to 250mA
q
13
30
mV
FB Pin Bias Current (Adjustable Only)
VFB = 1.265V
q
0.8
5
µA
DRIVE Pin Current
VFB = 1.35V, VDRIVE = 7V
q
2mA
VFB = 1.15V, VDRIVE = 1.5V
q
250
440
mA
DRIVE Pin Saturation Voltage
IDRIVE = 20mA, VFB = 1.15V
q
0.12
0.3
V
IDRIVE = 250mA, VFB = 1.15V
q
0.73
1.4
V
SHDN Pin Threshold Voltage
q
1.0
1.33
1.6
V
SHDN Pin Current
VSHDN = 5V
200
µA
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
ELECTRICAL CHARACTERISTICS



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