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| 型号： | TPS60150DRVT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.4 A SWITCHED CAPACITOR REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 2 X 2 MM, GREEN, PLASTIC, SON-6 |
| 文件页数： | 3/21页 |
| 文件大小： | 1707K |
| 代理商： | TPS60150DRVT |
t
t
VOUT
GateWaveform
OfQ1 Transistor
Loadcurrent
Noload
Startup
Waveform
SkipModeat
NoLoadCondition
NormalModeat
50 mA LoadCurrent
SkipModeat
NoLoadCondition
QuiescentCurrent
90 A
m
4.7mA
50mA
5V+0.1V
5V
SLVS888B
– DECEMBER 2008 – REVISED FEBRUARY 2011
NORMAL MODE AND SKIP MODE OPERATION
Figure 24. Normal Mode and Skip Mode Operation
The TPS60150 has skip mode operation as shown in Figure 24. The TPS60150 enters skip mode if the output
voltage reaches 5V+0.1V and the load current is below 8mA(typ). In Skip Mode, the TPS60150 disables the
oscillator and decreases the pre_bias current of the output stage to reduce the power consumption. Once the
output voltage dips below threshold voltage, 5V+0.1V, the TPS60150 begins switching to increase output voltage
until the output reaches 5V+0.1V. When the output voltage dips below 5V, the TPS60150 returns to normal PWM
mode; thereby re-enabling the oscillator and increasing the pre_bias current of the output stage to supply output
current.
The skip threshold voltage and current depend on input voltage and output current conditions.
SHORT CIRCUIT PROTECTION
The TPS60150 has internal short circuit protection to protect the IC when the output is shorted to ground. To
avoid damage when output is shorted to ground, the short circuit protection circuitry senses output voltage and
clamps the maximum output current to 80mA(typ).
THERMAL SHUT DOWN PROTECTION
The regulator has thermal shutdown circuitry that protects it from damage caused by overload conditions. The
thermal protection circuitry disables the output when the junction temperature reached approximately 160
°C,
allowing the device to cool. When the junction temperature cools to approximately 140
°C, the output circuitry is
automatically re-enabled. Continuously running the regulator into thermal shutdown can degrade reliability. The
regulator also provides current limit to protect itself and the load.
2008–2011, Texas Instruments Incorporated
11
Product Folder Link(s): TPS60150
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS60150EVM-359 | 功能描述:电源管理IC开发工具 TPS60150EVM-359 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS60151 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TPS60151 5V/140mA Charge Pump Device |
| TPS60151ADRVR | 制造商:Texas Instruments 功能描述: |
| TPS60151DRV | 制造商:TI 制造商全称:Texas Instruments 功能描述:TPS60151 5V/140mA Charge Pump Device |
| TPS60151DRVR | 功能描述:电荷泵 140mA,5V 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 |
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