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参数资料
| 型号： | TPS62700YZFR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, BGA8 |
| 封装： | LEAD FREE, WCSP-8 |
| 文件页数： | 14/25页 |
| 文件大小： | 856K |
| 代理商： | TPS62700YZFR |
LAYOUT CONSIDERATIONS
ENABLE
C
IN
V
OUT
V
IN
C
OUT
G
N
D
VCON
0
è
L
PACKAGE SUMMARY
A1
A2
A3
B3
C3
C2
C1
B1
A1
YMLLLL
CKL S
D
E
CHIP SCALEPACKAGE
(BOTTOMVIEW)
CHIP SCALEPACKAGE
(TOP VIEW)
Code:
- YM:2digityear/monthdatecode
-LLLL:lottracecode
-S:assemblysitecode
SW
VCON
PVIN
AVIN
EN
FB
AGND
PGND
-CKL: TPS62700devicecode
www.ti.com................................................................................................................................................... SLVS784B – DECEMBER 2007 – REVISED JUNE 2008
As for all switching power supplies, the PCB layout is an important step in the design. Proper function of the
device demands careful attention to PCB layout. Care must be taken in board layout to achieve 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, low-impedance ground path. Therefore,
use wide, short traces for the main current paths. The input capacitor should be placed as close as possible to
the IC pins PVIN and PGND. The inductor and output capacitor should be placed close to SW and PGND.
The FB line should be connected directly to the output capacitor and routed away from noisy components and
traces (e.g., SW line).
Figure 42. Suggested Board Layout
PACKAGE DIMENSIONS
Dimension D
Dimension E2
1,64 mm ± 0,03mm
1,5 mm ± 0,03
Copyright 2007–2008, Texas Instruments Incorporated
21
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