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| 型号： | TPS61001DGS |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.3 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | GREEN, PLASTIC, MSOP-10 |
| 文件页数： | 13/25页 |
| 文件大小： | 456K |
| 代理商： | TPS61001DGS |
TPS61000, TPS61001, TPS61002, TPS61003, TPS61004, TPS61005, TPS61006, TPS61007
SINGLE- AND DUAL-CELL BOOST CONVERTER WITH START-UP INTO FULL LOAD
SLVS279C – MARCH 2000 – REVISED APRIL 2003
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
THERMAL INFORMATION
Implementation of integrated circuits in low-profile and fine-pitch surface-mount packages typically requires
special attention to power dissipation. Many system-dependent issues such as thermal coupling, airflow, added
heat sinks and convection surfaces, and the presence of other heat-generating components affect the power-
dissipation limits of a given component.
Three basic approaches for enhancing thermal performance are listed below:
Improving the power dissipation capability of the PWB design
Improving the thermal coupling of the component to the PWB
Introducing airflow in the system
The maximum junction temperature (TJ) of the TPS6100x devices is 125°C. The thermal resistance of the
10-pin MSOP package (DGS) is RθJA = 294°C/W. Specified regulator operation is assured to a maximum
ambient temperature (TA) of 85 °C. Therefore, the maximum power dissipation is about 130 mW. More power
can be dissipated if the maximum ambient temperature of the application is lower.
mW
W
C
JA
R
A
MAX
J
T
MAX
D
P
136
/
294
85
125
)
(
)
(
=
°
–
°
=
Θ
=
(8)
–
Under normal operating conditions, the sum of all losses generated inside the converter IC is less than 50 mW,
which is well below the maximum allowed power dissipation of 136 mW as calculated in equation 8. Therefore,
power dissipation is given no special attention.
Table 4 shows where the losses inside the converter are generated.
Table 4. Losses Inside the Converter
LOSSES
AMOUNTS
Conduction losses in the switch
36 mW
Switching losses
8 mW
Gate drive losses
2.3 mW
Quiescent current losses
< 1 mW
TOTAL
< 50 mW
相关PDF资料 |
PDF描述 |
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| TPS61002DGSG4 | 1.3 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61006DGS | 1.3 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61002DGSRG4 | 1.3 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61000DGS | 1.3 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61003DGSR | 1.3 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61001DGSG4 | 功能描述:开关变换器、稳压器与控制器 Lo-In Voltage Boost Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS61001DGSR | 功能描述:开关变换器、稳压器与控制器 Lo-In Voltage Boost Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS61001DGSRG4 | 功能描述:开关变换器、稳压器与控制器 Lo-In Voltage Boost Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS61002 | 制造商:TI 制造商全称:Texas Instruments 功能描述:SINGLE-CELL BOOST CONVERTER WITH START-UP INTO FULL LOAD |
| TPS61002DGS | 功能描述:开关变换器、稳压器与控制器 1.8V 100mA Boost RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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