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参数资料
| 型号： | LTC1503CMS8-2#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | PLASTIC, MSOP-8 |
| 文件页数： | 5/12页 |
| 文件大小： | 187K |
| 代理商： | LTC1503CMS8-2#TR |
2
LTC1503-1.8/LTC1503-2
Industrial Temperature Range ............... – 40
°C to 85°C
Specified Temperature Range (Note 2) ... – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
(Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN Operating Voltage
q
2.4
6
V
VOUT
LTC1503-1.8, 0mA < IOUT < 100mA
q
1.728
1.8
1.872
V
LTC1503-2, 0mA < IOUT < 100mA
q
1.920
2.0
2.080
V
VIN Operating Current
IOUT = 0mA
q
25
50
A
VIN Shutdown Current
SHDN/SS = 0V
q
510
A
Output Ripple Voltage
LTC1503-X, VIN = 3.6V, IOUT = 100mA
25
mVP-P
Efficiency
LTC1503-2, VIN = 3.6V, IOUT = 100mA
82.9
%
Switching Frequency
Oscillator Free Running
600
kHz
SHDN/SS Input Threshold
q
0.2
0.35
0.5
V
SHDN/SS Input Current
VSHDN/SS = 0V (Note 3)
q
–3.5
–2
–1
A
VSHDN/SS = VIN
q
–1
1
A
VOUT Short-Circuit Current
VOUT = 0V (Note 4)
q
822
50
mA
VOUT Turn-On Time
CSS = 0nF, VIN = 3.6V, COUT = 10F
0.1
ms
CSS = 10nF
8
ms
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1503C is guaranteed to meet specified performance from
0
°C to 70°C and is designed, characterized and expected to meet these
extended temperature limits, but are not tested at – 40
°C and 85°C. The
LTC1503I is guaranteed to meet the extended temperature limits.
Note 3: Currents flowing into the device are positive polarity. Currents
flowing out of the device are negative polarity.
Note 4: When VOUT is less than 150mV, IOUT is limited to much less than
the maximum rated output current to prevent damage to the output
devices.
ORDER PART
NUMBER
LTC1503CMS8-1.8
LTC1503CMS8-2
MS8 PART MARKING
LTFX
LTHN
ORDER PART
NUMBER
LTC1503CS8-1.8
LTC1503CS8-2
LTC1503IS8-1.8
LTC1503IS8-2
S8 PART MARKING
150318
15032
Consult factory for Military grade parts.
TJMAX = 125°C, θJA = 200°C/W
1
2
3
4
VOUT
C1–
C1+
VIN
8
7
6
5
C2–
GND
C2+
SHDN/SS
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 150°C/W
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
VOUT
C1–
C1+
VIN
C2–
GND
C2+
SHDN/SS
VIN, C1+, C1–, C2+, C2– to GND ............... – 0.3V to 6.5V
SHDN/SS to GND ......................... – 0.3V to (VIN + 0.3V)
VOUT Short-Circuit Duration ............................. Indefinite
Commercial Temperature Range ............ – 40
°C to 85°C
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VIN = VIN(MIN) to VIN(MAX), C1 = C2 = 1F, CIN = COUT = 10F unless otherwise noted.
503I18
1503I2
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
ELECTRICAL CHARACTERISTICS
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