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参数资料
| 型号： | TPS726126DCQ |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR |
| 中文描述： | 低输入电压，1低压差线性稳压器与督导员 |
| 文件页数： | 2/16页 |
| 文件大小： | 445K |
| 代理商： | TPS726126DCQ |
www.ti.com
1 oz. Copper
Power Plane
1 oz. Copper
Ground Plane
2 oz. Copper Solder Pad
with 25 Thermal Vias
Thermal Vias, 0,3 mm
Diameter, 1,5 mm Pitch
Maximum
Junction
T
emperature
125
T JM
C
°
1
2
3
4
5
0.1
1
10
100
Maximum
Power
Dissipation
W
P
D
Copper Heatsink Area cm2
TA = 55°C
No Air Flow
150 LFM
250 LFM
SOT223 Power Dissipation
TPS726126
TPS72615, TPS72616
TPS72618, TPS72625
SLVS403F – MAY 2002 – REVISED MAY 2005
THERMAL INFORMATION (continued)
Figure 21. DDPAK Thermal Resistance
From the data in Figure 22 and rearranging Equation 4, the maximum power dissipation for a different ground
plane area and a specific ambient temperature can be computed.
Figure 22. Maximum Power Dissipation vs Copper Heatsink Area
The SOT223 package provides an effective means of managing power dissipation in surface mount applications.
The SOT223 package dimensions are provided in the Mechanical Data section at the end of the data sheet. The
addition of a copper plane directly underneath the SOT223 package enhances the thermal performance of the
package.
To illustrate, the TPS72625 in a SOT223 package was chosen. For this example, the average input voltage is
3.3 V, the output voltage is 2.5 V, the average output current is 1 A, the ambient temperature 55°C, no air flow is
present, and the operating environment is the same as documented below. Neglecting the quiescent current, the
maximum average power is:
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS726126DCQG4 | 功能描述:低压差稳压器 - LDO Low Input Voltage Any Cap 1A 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 |
| TPS726126DCQR | 功能描述:低压差稳压器 - LDO Low Input Voltage Any Cap 1A 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 |
| TPS726126DCQRG4 | 功能描述:低压差稳压器 - LDO Low Input Voltage Any Cap 1A 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 |
| TPS72615DCQ | 功能描述:低压差稳压器 - LDO Low Input Voltage Any Cap 1A 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 |
| TPS72615DCQG4 | 功能描述:低压差稳压器 - LDO Low Input Voltage Any Cap 1A 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 |
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