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| 型号： | TPS60401DBVTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 28 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | GREEN, PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 7/28页 |
| 文件大小： | 787K |
| 代理商： | TPS60401DBVTG4 |
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TPS60400, TPS60401, TPS60402, TPS60403
UNREGULATED 60mA CHARGE PUMP VOLTAGE INVERTER
SLVS324A JULY 2001 REVISED NOVEMBER 2004
15
WWW.TI.COM
APPLICATION INFORMATION
Table 4. Measurement Results on the TPS60400 (Typical)
VI
[V]
IO(2)
[mA]
CI
[
F]
C(fly)
[
F]
CO
[
F]
LP
[
H]
CP
[
F]
BW = 500 MHz
VPOUT
BW = 20 MHz
VPOUT
VACeff [mV]
I
[V]
O(2)
[mA]
CERAMIC
P
[
H]
CERAMIC
VPOUT
VPP[mV]
VPOUT
VPP[mV]
POUT
VACeff [mV]
5
60
1
320
240
65
5
60
1
2.2
120
240
32
5
60
1
0.1 (X7R)
260
200
58
5
60
1
0.1
0.1 (X7R)
220
200
60
5
60
1
2.2
0.1
0.1 (X7R)
120
100
30
5
60
1
10
0.1
0.1 (X7R)
50
28
8
rail splitter
TPS60400
OUT
C1+
IN
C1
GND
1
2
3
5
4
C(fly)
1
F
CO
1
F
CI
1
F
VO = VI/2
GND
VI
GND
C3
1
F
Figure 26. TPS60400 as a High-Efficiency Rail Splitter
A switched-capacitor voltage inverter can be configured as a high efficiency rail-splitter. This circuit provides a
bipolar power supply that is useful in battery powered systems to supply dual-rail ICs, like operational amplifiers.
Moreover, the SOT23-5 package and associated components require very little board space.
After power is applied, the flying capacitor (C(fly)) connects alternately across the output capacitors C3 and CO.
This equalizes the voltage on those capacitors and draws current from VI to VO as required to maintain the
output at 1/2 VI.
The maximum input voltage between VI and GND in the schematic (or between IN and OUT at the device itself)
must not exceed 6.5 V.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS60401QDBVRQ1 | 功能描述:电荷泵 Auto Cat Unreg 60mA Chg Pump Vltg Invrtr 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 |
| TPS60402 | 制造商:TI 制造商全称:Texas Instruments 功能描述:UNREGULATED 60-mA CHARGE PUMP VOLTAGE INVERTER |
| TPS60402DBV | 制造商:TI 制造商全称:Texas Instruments 功能描述:UNREGULATED 60-mA CHARGE PUMP VOLTAGE INVERTER |
| TPS60402DBVR | 功能描述:电荷泵 60mA Charge Pump Voltage Inverter 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 |
| TPS60402DBVRG4 | 功能描述:电荷泵 60mA Charge Pump Voltage Inverter 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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