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參數(shù)資料
| 型號(hào)： | US3007 |
| 廠商： | Unisem Group |
| 英文描述： | 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD |
| 中文描述： | 5位可編程同步降壓加上非同步，LDO控制器及船上200MmA穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 15/15頁(yè) |
| 文件大?。?/td> | 101K |
| 代理商： | US3007 |
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US3007
4-15
Rev. 1.8
12/8/00
Note: It is better to place the 1.5V linear regulator com-
ponents close to the 3007 and then run a trace from the
output of the regulator to the load. However, if this is not
possible then the trace from the linear drive output pin,
pin 18
must be run away from any high frequency
data signals.
It is critical, to place high frequency ceramic ca-
pacitors close to the clock chip and termination
resistors to provide local bypassing.
9) Place R12 and C10 close to pin 23 and R9 and C5
close to pin 9.
10) Place C9 close to pin 12
Component connections:
Note : It is extremely important that no data bus
should be passing through the switching regulator
section specifically close to the fast transition nodes
such as PWM drives or the inductor voltage.
Using the 4 layer board, dedicate on layer to GND, an-
other layer as the power layer for the 5V, 3.3V, Vcore,
1.5V and if it is possible for the 2.5V.
Connect all grounds to the ground plane using di-
rect vias to the ground plane.
Use large low inductance/low impedance plane to con-
nect the following connections either using component
side or the solder side.
a) C14 to Q3 Drain and C3 to Q1 drain
b) Q3 Source to Q4 Drain and Q1 Source to D1 cathode
c) Q4 drain to L3 and D1 cathode to L2
d) L3 to the output capacitors, C16 and L2 to the output
capacitors, C1
e) C16 to the load, slot 1
f) Input filter L1 to the C16 and C3
g) C1 to Q2 drain
h) C17 to the Q2 source
I) A minimum of 0.2 inch width trace from the C18 ca-
pacitor to pin 16
Connect the rest of the components using the shortest
connection possible
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| US3007CW | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS NON SYNCHRONOUS , LDO CONTROLLER AND 200MmA LDO ON BOARD |
| US3008 | 制造商:UNITPOWER 制造商全稱:UNITPOWER 功能描述:N-Ch 30V Fast Switching MOSFETs |
| US-3008 | 功能描述:PROTO-BOARD 8PIN THRU-HOLE SIP RoHS:是 類別:原型開發(fā)產(chǎn)品 >> 適配器，可互換接口板 系列:3000, UNI-SIP™ 標(biāo)準(zhǔn)包裝:1 系列:- 原型板類型:- Package Accepted:- 尺寸/尺寸:- 位置數(shù):- 孔直徑:- 板厚度:- 材質(zhì):- |
| US3010 | 制造商:UNISEM 制造商全稱:UNISEM 功能描述:5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC |
| US-3010 | 功能描述:PROTO-BOARD 10PIN THRU-HOLE SIP RoHS:是 類別:原型開發(fā)產(chǎn)品 >> 適配器，可互換接口板 系列:3000, UNI-SIP™ 標(biāo)準(zhǔn)包裝:1 系列:- 原型板類型:- Package Accepted:- 尺寸/尺寸:- 位置數(shù):- 孔直徑:- 板厚度:- 材質(zhì):- |
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