參數(shù)資料
型號(hào): TPS60140PWPG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
封裝: GREEN, PLASTIC, HTSSOP-20
文件頁數(shù): 7/23頁
文件大?。?/td> 862K
代理商: TPS60140PWPG4
TPS60140, TPS60141
LOW POWER DCDC CONVERTER
REGULATED 5 V, 100mA CHARGE PUMP VOLTAGE TRIPLER
SLVS273 FEBRUARY 2000
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
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 soldered in close proximity to the IC. Connect ground and power ground terminals
through a short, low-impedance trace. A PCB layout proposal for a two-layer board is given in Figure 17. The
bottom layer of the board carries only ground potential for best performance. The layout also provides improved
thermal performance as the exposed lead frame of the PowerPad package is soldered to the PCB.
An evaluation module for the TPS60140 is available and can be ordered under product code
TPS60140EVM144. The EVM uses the layout shown in Figure 17.
NOTE: Actual size is 15 mm x 25 mm.
Figure 17. Recommended Component Placement and Board Layout
Table 5. Component Identification
IC1
TPS6014x
C1, C2
Flying capacitors
C3, C6
Input capacitors
C4, C5
Output capacitors
C7
Stabilization capacitor for LBI
R1, R2
Resistive divider for LBI
R3
Pullup resistor for LBO
The best performance of the converter is achieved with additional bypass capacitors C5 and C6 at the input and
output. Capacitor C7 should be included if the large line transients are expected. The capacitors are not
required. They can be omitted in most applications.
相關(guān)PDF資料
PDF描述
TPS60141PWPG4 SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
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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