参数资料
| 型号： | LT337AT |
| 厂商： | Linear Technology |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO NEG ADJ TO220-3 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 负，可调式 |
| 输出电压： | -1.2 V ~ -37 V |
| 稳压器数量： | 1 |
| 电流 - 限制（最小）： | 1.5A |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220-3 |
| 包装： | 管件 |
LT137A/LM137
LT337A/LM337
TYPICAL APPLICATIONS
A high stability regulator is illustrated in the application
circuit shown to the right. The output stability, load regula-
High Stability Regulator
tion, line regulation, thermal regulation, temperature drift,
long term drift, and noise can be improved by a factor of
6.6 over the standard regulator con?guration. This assumes
a zener whose drift and noise is considerably better than
7V
LM329B
R3
1.5k
1%
R2*
R1
1k
1%
+
1μF
SOLID
TANTALUM
the regulator itself. The LM329B has 20ppm/°C maximum
ADJ
drift and about 10 times lower noise than the regulator.
–V IN
V IN
LT137A V OUT
–V OUT
In the application shown below, regulators #2 to “N” will
137A TA03
*R2 =
| V OUT |
9.08 ? 10 –3
– 908Ω
track regulator #1 to within ±24mV initially, and to ±60mV
over all load, line, and temperature conditions. If any
regulator output is shorted to ground, all other outputs will
drop to approximately ≈ –2V. Load regulation of regula-
Dual Tracking Supply ±1.25V to ±20V
+
10μF
2μF
120Ω
TANTALUM
ADJ
tors 2 to “N” will be improved by V OUT /1.25V compared
to a standard regulator, so regulator #1 should be the one
which has the lowest load current.
Multiple Tracking Regulators
C3
R2
+
C1
1μF
R1 SOLID
1N4002
+V IN
10μF
10μF
V IN
+
+
LT317A V OUT
ADJ
R2
5k
1%
R4
5k
1%
R1**
100Ω
1%
R3
5k
R5**
+
+
2.2μF*
2.2μF*
+V OUT
D1
1N4002
D2
1N4002
–V IN
+
V IN
LT137A
2μF
REG #1 V OUT
137A TA02
+
–V OUT1
1μF
SOLID
–V IN
ADJ
V IN
LT337A V OUT
137A TA04
*SOLID TANTALUM
100Ω
1%
–V OUT
V IN
LT137A
ADJ
REG #2 V OUT
1N4002
TANTALUM
–V OUT2
**R1 OR R5 MAY BE TRIMMED SLIGHTLY TO IMPROVE TRACKING
Current Regulator
137A TA02
+
2μF
ADJ
+
1μF
SOLID
TANTALUM
(–)
V IN
ADJ
LT337A V OUT
+
C1
1μF
SOLID TANTALUM
(+)
V IN
LT137A
REG #N V OUT
–V OUT3
137A TA05
R S
I
I = 65μA +
1.25V
R S
137A TA02
(0.8Ω < R S < 250Ω)
137afb
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT337AT#PBF | 功能描述:IC REG LDO NEG ADJ TO220-3 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:8V 输入电压:10.5 V ~ 23 V 电压 - 压降（标准）:1.7V @ 40mA 稳压器数量:1 电流 - 输出:100mA（最小值） 电流 - 限制（最小）:- 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:剪切带 (CT) 产品目录页面:1075 (CN2011-ZH PDF) 其它名称:296-24390-1 |
| LT337AT#PBF | 制造商:Linear Technology 功能描述:IC NEGATIVE ADJ REG -1.2V TO 7V TO-220 制造商:Linear Technology 功能描述:IC, NEGATIVE ADJ REG, -1.2V TO 7V TO-220 |
| LT337ATPBF | 制造商:Linear Technology 功能描述:Negative Adjustable Regulator 1.5A TO220 |
| LT337BC | 制造商:EDSYN 功能描述: |
| LT337H | 制造商:LINER 制造商全称:Linear Technology 功能描述:Negative Adjustable Regulator |
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