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| 型号： | TPS60133PWPRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.15 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | GREEN, PLASTIC, HTSSOP-20 |
| 文件页数： | 13/27页 |
| 文件大小： | 0K |
| 代理商： | TPS60133PWPRG4 |
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TPS60130, TPS60131, TPS60132, TPS60133
REGULATED 5V, 300 mA HIGH EFFICIENCY CHARGE PUMP
DC/DC CONVERTERS
SLVS258A NOVEMBER 1999 REVISED DECEMBER 1999
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
TPS6013x operated with ultra-low quiescent current
Because the output of the TPS6013x is isolated from the input when the devices are disabled, and because the
internal resistive divider is disconnected in shutdown, an ultra-low quiescent current mode can be implemented.
In this mode, the output voltage is sustained because the converter is periodically enabled to refresh the output
capacitor. The necessary external control signal that is applied to the ENABLE-pin is generated from a
microcontroller. For a necessary supply current for the system of 1 mA and a minimum supply voltage of 4.5
V with a 33-
F output capacitor, the refresh has to be done after 9 ms. Longer refresh periods can be achieved
with a larger output capacitor.
IN
LBI
C1+
C1
ENABLE
PGND GND
OUT
FB
LBO
C2+
C2
33
F
Ci
15
F
Output
5 V, 150 mA
C2
2.2
F
C1
2.2
F
R1
R2
Input
2.7 V to 5.4 V
ON
OFF
C3
1
F
R4
1 M
R3
1 M
I
O
C
TPS60132
Figure 26. TPS60132 in Ultra-Low Quiescent Current Mode
regulated discharge of the output capacitors after disabling of the TPS6013x
During shutdown of the charge pump TPS6013x the output is isolated from the input. Therefore the discharging
of the output capacitor depends on the load and on the leakage current of the capacitor. In certain applications
it is necessary to completely remove the supply voltage from the load in shutdown mode. That means the output
capacitor of the charge pump has to be actively discharged when the charge pump is disabled. Figure 10 shows
one solution to this problem.
TPS601xx
OUT
IN
GND
ENABLE
+
CO
SN74AHC1G04
A
Y
VCC
GND
IN
ENABLE
GND
OUT
BSS138
Figure 27. Block Diagram of the Regulated Discharge of the Output Capacitor
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PDF描述 |
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| TPS60131PWPR | 0.3 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20 |
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| TPS60250RTER | 0.65 A SWITCHED CAPACITOR CONVERTER, 750 kHz SWITCHING FREQ-MAX, PQCC16 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS60140 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW POWER DC-DC CONVERTER REGULATED 5 V, 100-mA CHARGE PUMP VOLTAGE TRIPLER |
| TPS60140EVM-144 | 功能描述:电源管理IC开发工具 2 batt cells 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 |
| TPS60140PWP | 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 |
| TPS60140PWPG4 | 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 |
| TPS60140PWPR | 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 |
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