參數(shù)資料
型號(hào)： TPS60201DGSRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHED CAPACITOR REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO10
封裝： PLASTIC, MSOP-10
文件頁(yè)數(shù)： 9/24頁(yè)
文件大小： 627K
代理商： TPS60201DGSRG4
TPS60200, TPS60201, TPS60202, TPS60203
REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP
LOW POWER DC/DC CONVERTERS
SLVS274 – MARCH 2000
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
power dissipation (continued)
PDISS must be less than that allowed by the package rating. The thermal resistance junction to ambient of the
used 10-pin MSOP is 294
°C/W for an unsoldered package. The thermal resistance junction to ambient with
the IC soldered to a printed circuit using a board layout as described in the application information section, the
RΘJA is typically 200°C/W, which is higher than the maximum value calculated above. However in a battery
powered application, both VI and TA will typically be lower than the worst case ratings used in equation 6 , and
power dissipation should not be a problem in most applications.
layout and board space
Careful board layout is necessary due to the high transient currents and switching frequency of the converter.
All capacitors should be placed in close proximity to the device. A PCB layout proposal for a one-layer board
is given in Figure 20.
An evaluation module for the TPS60200 is available and can be ordered under product code
TPS60200EVM–145. The EVM uses the layout shown in Figure 20. All components including the pins are
shown. The EVM is built so that it can be connected to a 14-pin dual inline socket, therefore, the space needed
for the IC, the external parts, and 8 pins is 17,9 mm x 10,2 mm = 182,6 mm2.
Figure 20. Recommended Component Placement and Board Layout
Table 5. Component Identification
IC1
TPS60200
C1, C2
Flying capacitors
C3
Input capacitors
C4
Output capacitors
C5
Stabilization capacitor for LBI
R1, R2
Resistive divider for LBI
R3
Pullup resistor for LBO
R4
Pullup resistor for EN
Capacitor C5 should be included if large line transients are expected. This capacitor suppresses toggling of the
LBO due to these line changes.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS60202 制造商:TI 制造商全稱:Texas Instruments 功能描述:REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP LOW POWER DC/DC CONVERTERS
TPS60202DGS 功能描述:電荷泵 Regulated 3.3-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
TPS60202DGSG4 功能描述:電荷泵 Regulated 3.3-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
TPS60202DGSR 功能描述:電荷泵 Regulated 3.3-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
TPS60202DGSRG4 功能描述:電荷泵 Regulated 3.3-V Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube
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