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| 型号： | LT1611CS5#TR |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC REG INV ADJ 0.3A SOT23-5 |
| 标准包装： | 2,500 |
| 类型： | 反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | -0.9 V ~ -10 V |
| 输入电压： | 0.9 V ~ 10 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.4MHz |
| 电流 - 输出： | 300mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | SOT-23-5 |
LT1611
ABSOLUTE M AXI M U M RATINGS
PACKAGE/ORDER I N FOR M ATIO N
(Note 1)
V IN Voltage .............................................................. 10V
SW Voltage ................................................ – 0.4V to 36V
NFB Voltage ............................................................. – 3V
Current into NFB Pin ............................................. ± 1mA
SHDN Voltage .......................................................... 10V
Maximum Junction Temperature .......................... 125 ° C
TOP VIEW
SW 1 5 V IN
GND 2
NFB 3 4 SHDN
S5 PACKAGE
5-LEAD PLASTIC SOT-23
ORDER PART
NUMBER
LT1611CS5
S5 PART MARKING
Operating Temperature Range
Commercial ............................................. 0 ° C to 70 ° C
Extended Commercial (Note 2) ........... – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
T JMAX = 125 ° C, θ JA = 256 ° C/W
Consult factory for Industrial and Military grade parts.
LTES
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 = 1.5V, V SHDN = V IN unless otherwise noted.
PARAMETER
Minimum Operating Voltage
CONDITIONS
MIN
TYP
0.9
MAX
1.1
UNITS
V
Maximum Operating Voltage
10
V
NFB Pin Bias Current
Feedback Voltage
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency
V NFB = –1.23V
V SHDN = 1.5V, Not Switching
V SHDN = 0V, V IN = 2V
V SHDN = 0V, V IN = 5V
1.5V ≤ V IN ≤ 10V
q
q
q
– 2.7
– 1.205
1.0
– 4.7
– 1.23
3
0.01
0.01
0.02
1.4
– 6.7
– 1.255
4.5
0.5
1.0
0.2
1.8
μ A
V
mA
μ A
μ A
%/V
MHz
Maximum Duty Cycle
Switch Current Limit
(Note 3)
q
82
550
86
800
%
mA
Switch V CESAT
Switch Leakage Current
I SW = 300mA
V SW = 5V
300
0.01
350
1
mV
μ A
SHDN Input Voltage High
SHDN Input Voltage Low
1
0.3
V
V
SHDN Pin Bias Current
V SHDN = 3V
V SHDN = 0V
25
0
50
0.1
μ A
μ A
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: C grade device specifications are guaranteed over the 0 ° C to 70 ° C
temperature range. In addition, C grade device specifications are assured
over the – 40 ° C to 85 ° C temperature range by design or correlation, but
are not production tested.
2
Note 3: Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
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