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参数资料
| 型号： | LT1431MJ8#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, CDIP8 |
| 封装： | 0.300 INCH, HERMETIC SEALED, LEAD FREE, CERAMIC, DIP-8 |
| 文件页数： | 12/14页 |
| 文件大小： | 223K |
| 代理商： | LT1431MJ8#TRPBF |
LT1431
7
1431fe
applicaTions inForMaTion
Typical applicaTions
Frequency Compensation
As a shunt regulator, the LT1431 is stable for all capacitive
loads on the COLL pin. Capacitive loading between 0.01F
and 18F causes reduced phase margin with some ringing
under transient conditions. Output capacitors should not
be used arbitrarily because output noise is not necessar-
ily reduced.
Excess capacitance on the REF pin can introduce enough
phase shift to induce oscillation when configured as a
reference>2.5V.Thiscanbecompensatedwithcapacitance
between COLL and REF (phase lead). More complicated
feedback loops may require shaping of the frequency
response of the LT1431 with dominant pole or pole-zero
compensation. This can be accomplished with a capacitor
or series resistor and capacitor between COLL and COMP.
The compensation schemes mentioned above use voltage
feedbacktostabilizethecircuits.Theremustbevoltagegain
at the COLL pin for them to be effective, so the COLL pin
must see a reasonable AC impedance. Capacitive loading
of the COLL pin reduces the AC impedance, voltage gain,
and frequency response, thereby decreasing the effective-
ness of the compensation schemes, but also decreasing
their necessity.
2.5V Reference
3-Pin Package
2.5V Reference
8-Pin Package
5V Reference
Increasing 5V Reference
Programmable Reference with Adjustable
Current Limit
VIN
RL
2.5V
LT1431 TA02
CATHODE
REF
LT1431Z
ANODE
VIN
RL
2.5V
LT1431 TA03
COLL
REF
LT1431
GND-F
V+
GND-S
VIN
RL
5V
LT1431 TA04
COLL
REF
LT1431
GND-F
V+
GND-S
RTOP
RMID
VIN
RL
5V +
LT1431 TA05
R
= R (0.5mA) ±25% PROCESS TOLERANCE
≤ 500mV
COLL
REF
LT1431
GND-F
V+
GND-S
RTOP
RMID
VIN
RL
LT1431 TA06
RLIM
VOUT =
( )
1 + R1
R2
VREF
R1
R2
ILIMIT =
0.7
RLIM + 3.6
AT 25°C
COLL
REF
LT1431
GND-F
V+
GND-S
相关PDF资料 |
PDF描述 |
|---|---|
| LT1460BIN8-2.5#TRPBF | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDIP8 |
| LT1460EIN8-5#TRPBF | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, PDIP8 |
| LT1460DCN8-5#TRPBF | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, PDIP8 |
| LT1460ACN8-10#TRPBF | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 10 V, PDIP8 |
| LT1460DCN8-10#TRPBF | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 10 V, PDIP8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1431MPS8#PBF | 功能描述:IC VREF SHUNT ADJ 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR) |
| LT1431MPS8#TRPBF | 功能描述:IC VREF SHUNT ADJ 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR) |
| LT1432 | 制造商:LINER 制造商全称:Linear Technology 功能描述:5V High Efficiency Step-Down Switching Regulator Controller |
| LT1432-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:3.3V High Efficiency Step-Down Switching Regulator Controller |
| LT1432CN8 | 制造商:LINER 制造商全称:Linear Technology 功能描述:5V High Efficiency Step-Down Switching Regulator Controller |
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