- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382680 > TPS62303YZD (Texas Instruments, Inc.) 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING PDF資料下載
參數(shù)資料
| 型號： | TPS62303YZD |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING |
| 中文描述： | 500毫安，3 MHz的同步降壓轉(zhuǎn)換器芯片級封裝 |
| 文件頁數(shù)： | 20/31頁 |
| 文件大小： | 1635K |
| 代理商： | TPS62303YZD |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當(dāng)前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
www.ti.com
LAYOUT CONSIDERATIONS
As for all switching power supplies, the layout is an important step in the design. High-speed operation of the
TPS6230x, TPS6231x, and TPS6232x devices demand careful attention to PCB layout. Care must be taken in
board layout to get the specified performance. If the layout is not carefully done, the regulator could show poor
line and/or load regulation, stability issues as well as EMI problems. It is critical to provide a low inductance,
impedance ground path. Therefore, use wide and short traces for the main current paths as indicated in bold on
Figure 34
.
AVIN
VIN
SW
TPS62300
L1
ADJ
PGND
AGND
VOUT
R1
R2
EN
MODE/SYNC
FB
1
2
3
8
7
10
6
4
5
9
V
I
C1
C2
V
O
GND
MODE / SYNC
V
O
sense signal
EN
V
I
GND
V
O
TPS62300, TPS62301, TPS62302
TPS62303, TPS62305, TPS62311
TPS62313, TPS62320, TPS62321
SLVS528B–JULY 2004–REVISED JUNE 2005
The input capacitor should be placed as close as possible to the IC pins as well as the inductor and output
capacitor. Use a common ground node for power ground and a different one for control ground (AGND) to
minimize the effects of ground noise. Connect these ground nodes together (star point) underneath the IC and
make sure that small signal components returning to the AGND pin do not share the high current path of C1 and
C2.
The output voltage sense line (VOUT) should be connected right to the output capacitor and routed away from
noisy components and traces (e.g., SW line). Its trace should be minimized and shielded by a guard-ring
connected to the reference ground. The voltage setting resistive divider should be placed as close as possible to
the AGND pin of the IC.
Figure 34. Layout Diagram
Figure 36. Suggested QFN Layout (Bottom)
Figure 35. Suggested QFN Layout (Top)
20
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS62320YED | 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING |
| TPS62320YEDR | T1/E1 Transformer w/Surge Protect |
| TPS62321YEDR | 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING |
| TPS62321YED | 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING |
| TPS62321YZD | 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS62303YZDR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.8V 500-mA 3-MHz Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62303YZDT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.8V 500-mA 3-MHz Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62304DRCR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2V 500-mA 3-MHz Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62304DRCRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2V 500-mA 3-MHz Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62304YZDR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2V 500-mA 3-MHz Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。