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參數(shù)資料
| 型號： | TPS5110PWG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | GREEN, PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 16/43頁 |
| 文件大?。?/td> | 813K |
| 代理商： | TPS5110PWG4 |
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TPS5110
SLVS025B APRIL 2002 REVISED JULY 2004
23
www.ti.com
APPLICATION INFORMATION
layout guidelines
Good power supply results only occur when care is given to proper design and layout. Layout affects noise
pickup and generation and can cause a good design to perform with less than expected results. With a range
of currents from milli-amps to tens of amps, good power supply layout is much more difficult than most general
PCB designs. The general design should proceed from the switching node to the output, then back to the driver
section and, finally, parallel the low-level components. Below are specific points to consider before the layout
of a TPS5110 design begins.
A four-layer PCB design is recommended for design using the TPS5110. For the EVM design, the top
layer contains the interconnection to the TPS5110, plus some additional signal traces. Layer 2 is fully
devoted to the DRVGND plane. Layer 3 mainly has wide VIN and VO1 pattern. The bottom layer is
almost devoted to other GND plane including ANAGND, and the rest is to wide signal trace for VO2.
All sensitive analog components such as INV, REF, CT, GND, FLT and SOFTSTART should be
reference to ANAGND.
Ideally, all of the area directly under the TPS5110 chip should also be ANAGND.
ANAGND and DRVGND should be isolated as much as possible, with a single point connection
between them.
UDG02069
1
INV
4
PWM_SEL
7
REF
24
23
17
LH
OUT_u
REG5V_IN
22
21
LL
OUT_d
16
15
LDO_IN
LDO_CUR
14
13
LDO_GATE
LDO_OUT
TPS5110PW
VIN
V
O1
EX5V
V
O2
2FB
5CT
3
SOFTSTART
6
GND
9
FLT
8
STBY
10
STBY_LDO
11
POWERGOOD
12
INV_LDO
20
19
OUTGND
TRIP
18
VIN_SENSE
V
OGND
ANAGND
DRVGND
Figure 18. Four-Layer PCB Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS5110PWR | 功能描述:DC/DC 開關(guān)控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5110PWRG4 | 功能描述:DC/DC 開關(guān)控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS51113 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SYNCHRONOUS BUCK CONTROLLER WITH HIGH-CURRENT GATE DRIVER |
| TPS51113DRCR | 功能描述:DC/DC 開關(guān)控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS51113DRCT | 功能描述:DC/DC 開關(guān)控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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