参数资料
| 型号： | MIC5259-1.5YD5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.5V .3A TSOT23-5 |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.5V |
| 输入电压： | 2.7 V ~ 6 V |
| 电压 - 压降（标准）： | 0.3V @ 300mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 300mA |
| 电流 - 限制（最小）： | 350mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-5 细型，TSOT-23-5 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC5259-1.5YD5TR MIC5259-1.5YD5TR-ND |
P D(max) = ?
? 125 ° C ? 70 ° C ?
Micrel, Inc.
The actual power dissipation of the regulator circuit can
be determined using the equation:
P D = (V IN – V OUT ) I OUT + V IN I GND
Substituting P D(max) for P D and solving for the operating
conditions that are critical to the application will give the
maximum operating conditions for the regulator circuit.
For example, when operating the MIC5259-2.8BML at
70°C with a minimum footprint layout, the maximum
input voltage for a set output current can be determined
as follows:
?
? 90 ° C/W ?
P D(max) = 611mW
MIC5259
The junction-to-ambient thermal resistance for the
minimum footprint is 90°C/W, from Table 1. The
maximum power dissipation must not be exceeded for
proper operation. Using the output voltage of 2.8V and
an output current of 200mA, the maximum input voltage
can be determined. Because this device is CMOS and
the ground current is typically 110μA over the load
range, the power dissipation contributed by the ground
current is < 1% and can be ignored for this calculation.
611mW = (V IN – 2.8V) 200mA
611mW = V IN × 200mA – 560mW
1171mW = V IN × 200mA
V IN(max) = 5.85V
Therefore, a 2.8V application at 200mA of output current
can accept a maximum input voltage of 5.85V in an MLF
package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
“Regulator Thermals” section of Micrel’s Designing with
Low-Dropout Voltage Regulators handbook.
September 2006
9
M9999-091406
相关PDF资料 |
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|---|---|
| MIC5249-3.0YMM TR | IC REG LDO 3V .3A 8-MSOP |
| MIC5249-2.8YMM TR | IC REG LDO 2.8V .3A 8-MSOP |
| ECC49DRTI-S93 | CONN EDGECARD 98POS DIP .100 SLD |
| RSC22DRTI-S734 | CONN EDGECARD 44POS DIP .100 SLD |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5259-2.1YML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC5259-2.1YML TR | 功能描述:低压差稳压器 - LDO Low Drop Out Regulator, 300mA High PSRR in 2mm x 2mm MLF (Lead Free) 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 |
| MIC5259-2.5BD5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:300mA High PSRR, Low Noise μCap CMOS LDO |
| MIC5259-2.5BD5 TR | 功能描述:IC REG LDO 2.5V .3A TSOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:500 系列:- 稳压器拓扑结构:正，固定式 输出电压:12V 输入电压:14.5 V ~ 35 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:500mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:TO-205AD，TO-39-3 金属罐 供应商设备封装:TO-39 包装:散装 其它名称:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5259-2.5BML | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:300mA High PSRR, Low Noise UCap CMOS LDO |
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