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参数资料
| 型号： | LT1172CT#31PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ TO220 |
| 标准包装： | 50 |
| 类型： | 降压（降压），升压（升压），反相，Cuk，回扫，正向转换器 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 40 V |
| 输入电压： | 3 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz |
| 电流 - 输出： | 1.25A |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 100°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-5 成形引线 |
| 包装： | 管件 |
| 供应商设备封装： | TO-220-5 |
LT1170/LT1171/LT1172
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
LT1170/LT1171/LT1172HV (Note 2) .......................60V
LT1170/LT1171/LT1172 (Note 2)............................40V
Switch Output Voltage
(Note 1)
Operating Junction Temperature Range
LT1170M/LT1171M (OBSOLETE) ....... –55°C to 150°C
LT1172M ............................................ –55°C to 125°C
LT1170/LT1171/LT1172HVC,
LT1170/LT1171/LT1172HV .....................................75V
LT1170/LT1171/LT1172 .........................................65V
LT1172S8 ..............................................................60V
Feedback Pin Voltage (Transient, 1ms) ................... ±15V
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec .................... 300°C
LT1170/LT1171/LT1172C (Oper.)............. 0°C to 100°C
LT1170/LT1171/LT1172HVC
LT1170/LT1171/LT1172C (Sh. Ckt.) ........ 0°C to 125°C
LT1170/LT1171/LT1172HVI,
LT1170/LT1171/LT1172I (Oper.) .......... –40°C to 100°C
LT1170/LT1171/LT1172HVI,
LT1170/LT1171/LT1172I (Sh. Ckt.)...... –40°C to 125°C
PIN CONFIGURATION
BOTTOM VIEW
V SW
V C
TOP VIEW
GND 1
TOP VIEW
8
E2
1
4
2
3
CASE
IS GND
GND 1
V C 2
8
7
E2
V SW
V C 2
FB 3
NC* 4
7
6
5
V SW
E1
V IN
V IN
K PACKAGE
4-LEAD TO-3 METAL CAN
FB
FB 3
NC* 4
6
5
E1
V IN
J8 PACKAGE
8-LEAD CERDIP
T JMAX = 125°C, θ JA = 100°C/W
* Do not connect Pin 4 of the LT1172 DIP or SO to external
circuitry. This pin may be active in future revisions.
LT1170MK: T JMAX = 150°C, θ JC = 2°C/W, θ JA = 35°C/W
LT1170CK: T JMAX = 100°C, θ JC = 2°C/W, θ JA = 35°C/W
LT1171MK: T JMAX = 150°C, θ JC = 4°C/W, θ JA = 35°C/W
LT1171CK: T JMAX = 100°C, θ JC = 4°C/W, θ JA = 35°C/W
LT1172MK: T JMAX = 150°C, θ JC = 8°C/W, θ JA = 35°C/W
LT1172CK: T JMAX = 100°C, θ JC = 8°C/W, θ JA = 35°C/W
Based on continuous operation.
T JMAX = 125°C for intermittent fault conditions.
OBSOLETE
TOP VIEW
N8 PACKAGE S8 PACKAGE
8-LEAD PDIP 8-LEAD PLASTIC SO
T JMAX = 100°C, θ JA = 100°C/W (N)
T JMAX = 100°C, θ JA = 120°C/W to 150°C/W
depending on board layout (S)
* Do not connect Pin 4 of the LT1172 DIP or SO to external
circuitry. This pin may be active in future revisions.
FRONT VIEW
NC 1
16 NC
FRONT VIEW
5
4
3
2
1
Q PACKAGE
V IN
V SW
GND
FB
V C
NC 2
GND 3
V C 4
FB 5
NC 6
15 NC
14 E2
13 V SW
12 E1
11 V IN
5
4
3
2
1
V IN
V SW
GND
FB
V C
5-LEAD DD
T JMAX = 100°C, θ JA = *°C/W
* θ will vary from approximately 25°C/W with 2.8 sq.
in. of 1oz. copper to 45°C/W with 0.20 sq. in. of 1oz.
copper. Somewhat lower values can be obtained with
additional copper layers in multilayer boards.
NC 7 10 NC
NC 8 9 NC
SW PACKAGE
16-LEAD PLASTIC SO WIDE
T JMAX = 100°C, θ JA = 150°C/W
T PACKAGE
5-LEAD PLASTIC TO-220
LT1170CT/LT1170HVCT: T JMAX =100°C, θ JC = 2°C/W, θ JA = 75°C/W
LT1171CT/LT1171HVCT: T JMAX =100°C, θ JC = 4°C/W, θ JA = 75°C/W
LT1172CT/LT1172HVCT: T JMAX =100°C, θ JC = 8°C/W, θ JA = 75°C/W
Based on continuous operation.
T JMAX = 125°C for intermittent fault conditions.
Based on continuous operation.
T JMAX = 125°C for intermittent fault conditions.
117012fg
2
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相关代理商/技术参数 |
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| LT1172CTPBF | 制造商:Linear Technology 功能描述:Sw. Regulator 1.25A Efficiency TO220-5 |
| LT1172HV | 制造商:LINER 制造商全称:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
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