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参数资料
| 型号： | TLE4270 |
| 厂商： | Infineon Technologies |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .55A TO220-5 |
| 标准包装： | 500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 6 V ~ 42 V |
| 电压 - 压降（标准）： | 0.35V @ 550mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 550mA（最小值） |
| 电流 - 限制（最小）： | 650mA |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-5 成形引线 |
| 供应商设备封装： | P-TO220-5 |
| 包装： | 管件 |
| 其它名称： | SP000011792 TLE4270NK |
TLE 4270
Design Notes for External Components
An input capacitor C I is necessary for compensation of line influences. The resonant
circuit consisting of lead inductance and input capacitance can be damped by a resistor
of approx. 1 ? in series with C I . An output capacitor C Q is necessary for the stability of
the regulating circuit. Stability is guaranteed at values of C Q ≥ 22 μ F and an ESR of
< 3 ? .
Reset Circuitry
If the output voltage decreases below 4.5 V, an external capacitor C D on pin 4 (D) will be
discharged by the reset generator. If the voltage on this capacitor drops below V DL , a
reset signal is generated on pin 2 (RO), i.e. reset output is set low. If the output voltage
rises above the reset threshold, C D will be charged with constant current. After the
power-on-reset time the voltage on the capacitor reaches V DU and the reset output will
be set high again. The value of the power-on-reset time can be set within a wide range
depending of the capacitance of C D .
Reset Timing
The power-on reset delay time is defined by the charging time of an external capacitor
C D which can be calculated as follows:
C D = ( ? t × I D,c )/ ? V
Definitions:
(1)
?
?
?
?
C D = delay capacitors
? t = reset delay time t rd
I D,c = charge current, typical 14 μ A
? V = V DU , typical 1.8 V
V DU = upper reset timing threshold at C D for reset delay time
t rd = ? V × C D / I D,c
(2)
The reset reaction time t rr is the time it takes the voltage regulator to set the reset out
LOW after the output voltage has dropped below the reset threshold. It is typically 1 μ s
for delay capacitor of 47 nF. For other values for C D the reaction time can be estimated
using the following equation:
t rr ≈ 20 s/F × C D
(3)
Data Sheet
9
Rev. 1.6, 2005-08-09
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLE4270-2 | 功能描述:低压差稳压器 - LDO LW Drop Fixed VOLT REGULATOR 200mA 5V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TLE42702AKSA1 | 制造商:Infineon Technologies AG 功能描述:5-V LOW DROP FIXED VOLTAGE REGULATOR 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.65A 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Rail/Tube 制造商:Infineon Technologies AG 功能描述:IC REG LDO 5V 0.55A TO220-5 |
| TLE4270-2D | 功能描述:低压差稳压器 - LDO LW Drop Fixed VOLT REGULATOR 200mA 5V RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TLE42702DATMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.65A 5-Pin(4+Tab) TO-252 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG LDO 5V 0.55A TO252-5 |
| TLE42702DXT | 制造商:Infineon Technologies 功能描述:LDO Regulator Pos 5V 0.65A 5-Pin(4+Tab) TO-252 |
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