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| 型号： | TPS5110PWG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | GREEN, PLASTIC, TSSOP-24 |
| 文件页数： | 16/43页 |
| 文件大小： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS5110PWR | 功能描述:DC/DC 开关控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS5110PWRG4 | 功能描述:DC/DC 开关控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS51113 | 制造商:TI 制造商全称:Texas Instruments 功能描述:SYNCHRONOUS BUCK CONTROLLER WITH HIGH-CURRENT GATE DRIVER |
| TPS51113DRCR | 功能描述:DC/DC 开关控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS51113DRCT | 功能描述:DC/DC 开关控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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