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| 型号： | LTC1502IS8-3.3#TR |
| 厂商： | Linear Technology |
| 文件页数： | 2/8页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP 3.3V 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 切换式电容器（充电泵） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 0.9 V ~ 1.8 V |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 10mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
LTC1502-3.3
ABSOLUTE M AXI M U M RATINGS (Note 1)
V IN to GND .................................................. – 0.3V to 2V
V OUT to GND ............................................... – 0.3V to 5V
All Other Pins to GND ................................. – 0.3V to 5V
V OUT Short-Circuit Duration ............................ Indefinite
Storage Temperature Range ................ – 65 ° C to 150 ° C
PACKAGE/ORDER I N FOR M ATIO N
ORDER PART
Operating Temperature Range
Commercial ............................................ 0 ° C to 70 ° C
Extended Commercial (Note 4) .......... – 40 ° C to 85 ° C
Industrial ........................................... – 40 ° C to 85 ° C
Lead Temperature (Soldering, 10 sec)................. 300 ° C
ORDER PART
TOP VIEW
NUMBER
TOP VIEW
NUMBER
C1 /SHDN
–
C2
C1 +
GND
1
2
3
4
8
7
6
5
V OUT
C3 +
C3 –
V IN
LTC1502CMS8-3.3
C2 1
C1 + 2
C1 – /SHDN 3
8
7
6
V OUT
C3 +
C3 –
LTC1502CS8-3.3
LTC1502IS8-3.3
MS8 PACKAGE
8-LEAD PLASTIC MSOP
MS8 PART MARKING
GND 4
5
V IN
S8 PART MARKING
T JMAX = 125 ° C, θ JA = 250 ° C/ W
LTEC
S8 PACKAGE
8-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 150 ° C/ W
150233
502I33
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
V IN = 0.9V to 1.8V, C1 = C3 = 1 μ F, C IN = C2 = C OUT = 10 μ F unless otherwise specified.
PARAMETER
V IN Operating Voltage
Minimum V IN Start-Up Voltage
CONDITIONS
T A = 0 ° C to 70 ° C (Note 2)
T A = –40 ° C to 85 ° C (Note 2)
q
q
q
MIN
0.9
TYP
0.75
MAX
1.8
0.9
1.1
UNITS
V
V
V
V OUT Voltage
V IN Operating Current
V IN Shutdown Current
I OUT ≤ 3.5mA, 0.9V ≤ V IN ≤ 1.8V
I OUT ≤ 10mA, 1V ≤ V IN ≤ 1.8V
I OUT = 0mA
C1 – /SHDN = 0V
q
q
q
q
3.17
3.17
3.3
3.3
40
5
3.43
3.43
90
15
V
V
μ A
μ A
Output Ripple
Efficiency
Switching Frequency
I OUT = 10mA, V IN = 1.25V
V IN = 1V, I OUT = 10mA
Oscillator Free-Running
50
77
500
mV P-P
%
kHz
C1 – /SHDN Shutdown Input Threshold
C1 – /SHDN Shutdown Input Current
C1 – /SHDN in Hi-Z Sampling State
C1 – /SHDN = 0V (Note 3)
q
q
0.20
– 0.5
0.55
– 2.5
0.85
–8
V
μ A
V OUT Turn-On Time
V OUT Short-Circuit Current
V IN = 1V, I OUT = 0mA
V IN = 1.5V, V OUT Forced to 0V
5
20
ms
mA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Start-up testing is done with a 100k ? equivalent load on V OUT .
Note 3: Currents flowing into the device are positive polarity. Currents
flowing out of the device are negative polarity.
2
Note 4: Commercial grade specifications are guaranteed over the 0 ° C to
70 ° C operating temperature range. In addition, commercial grade
specifications are assured over the –40 ° C to 85 ° C operating temperature
range by design, characterization and correlation with statistical process
controls. Industrial grade specifications are guaranteed and tested over the
–40 ° C to 85 ° C operating temperature range.
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