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参数资料
| 型号： | TPS60141PWPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | GREEN, PLASTIC, HTSSOP-20 |
| 文件页数： | 6/23页 |
| 文件大小： | 862K |
| 代理商： | TPS60141PWPG4 |
TPS60140, TPS60141
LOW POWER DCDC CONVERTER
REGULATED 5 V, 100mA CHARGE PUMP VOLTAGE TRIPLER
SLVS273 FEBRUARY 2000
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
power dissipation
The power dissipated in the TPS6014x depends mainly on input voltage and output current and is described
by the following:
P
(DISS) +
I
O
3xV
I
–V
O
By observation of the above equation, it can be seen that the power dissipation is worse for the highest input
voltage VI and the highest output current IO. For an input voltage of 3.6 V and an output current of 100 mA, the
calculated power dissipation P(DISS) is 580 mW. This is also the point where the charge pump operates with its
lowest efficiency, which is only 45%, and hence with the highest power losses.
P(DISS) must be less than that allowed by the package rating. The thermal resistance junction to ambient of the
thermally enhanced TSSOP is 178
°C/W for an unsoldered package. The thermal resistance junction to case,
with the exposed thermal pad soldered to an infinitive heat sink, is 3.5
°C/W.
With the recommended maximum junction temperature of 125
°C and an assumed maximum ambient operating
temperature of 85
°C, the maximum allowed thermal resistance junction to ambient of the system can be
calculated as follows:
RΘJAmax +
T
J
max – T
A
P
(DISS)
max
+ 125°C– 85°C
580 mW
+ 69°C W
Using a board layout as described in the application information section, RΘJA is typically 56°C/W for an
unsoldered PowerPad and 41
°C/W for a soldered PowerPad.
For more information, refer to the PowerPad application report (Literature Number: SLMA002).
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相关PDF资料 |
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| TPS60140PWP | 0.1 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS60150DRVT | 1.4 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| TPS60150DRVR | 1.4 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| TPS60151DRVR | 0.5 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS60141PWPR | 功能描述:电荷泵 Reg 5-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| TPS60141PWPRG4 | 功能描述:电荷泵 Reg 5-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
| TPS60150 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TPS60150 5V/140mA Charge Pump Device |
| TPS60150_09 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TPS60150 5V/140mA Charge Pump Device |
| TPS60150DRV | 制造商:TI 制造商全称:Texas Instruments 功能描述:TPS60150 5V/140mA Charge Pump Device |
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