- 您现在的位置：买卖IC网 > PDF目录80229 > LT3571IUD#TRPBF (LINEAR TECHNOLOGY CORP) 0.57 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PQCC16 PDF资料下载
参数资料
| 型号： | LT3571IUD#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.57 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 3 X 3 MM, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220WEED-2, QFN-16 |
| 文件页数： | 4/16页 |
| 文件大小： | 215K |
| 代理商： | LT3571IUD#TRPBF |
LT3571
12
3571fa
TYPICAL APPLICATIONS
C1
1μF
MONIN
VREF
RT
SHDN
CTRL
GND
SYNC
VOUT
FB
VIN
SW
LT3571
MON
APD
OFF ON
VIN
5V
R2
20.5k
R4
49.9Ω
45V
RT
12.1k
1MHz
RSENSE
20Ω
3571 TA02a
C4
0.1μF
C3
10nF
R3
10k
C5
10nF
L: TDK VLF3010AT – 100MR49
C1: TDK X7R C1608X7R1C105KT
C2, C4: MURATA X7R GRM188R72A104KA35
C3: AVX X7R 06031C103K
C5: MURATA X7R GRM155R71H103K
50V
C2
0.1μF
L1
10μH
R1
1M
5V to 45V APD Bias Power Supply
Input Power vs APD Current
APD CURRENT (mA)
0
INPUT
POWER
(mW)
500
50
450
350
250
150
400
300
200
100
0
1.5
2
3571 TA02b
3
1
2.5
0.5
APPLICATIONS INFORMATION
Figure 6. High Frequency Path
LOAD
VOUT
L1
SWITCH
NODE
3571 F06
VIN
HIGH
FREQUENCY
CIRCULATING
PATH
Setting APD Current Limit
The LT3571 has a unique current loop to limit the APD
current. Choose the sense resistor RSENSE across VOUT
and MONIN pins to set the APD current limit by using the
following formula:
RSENSE =
200mV
1.2 × IAPD (mA)+ 0.3mA
where IAPD is the APD current limit.
Layout Hints
The high speed operation of the LT3571 demands careful
attention to board layout. Advertised performance will not
be achieved with a careless layout. To prevent radiation
and high frequency resonance problems, proper layout of
the high frequency switching path is essential. Keep the
output switch (SW pin), diode and output capacitor as
close together as possible. Minimize the length and area
of all traces connected to the switch pin, and always use
a ground plane under the switching regulator to minimize
interplane coupling. The high speed switching current path
is shown in Figure 6. The signal path, including the switch,
output diode and output capacitor contains nanosecond rise
and fall times and should be kept as short as possible.
相关PDF资料 |
PDF描述 |
|---|---|
| LK1601-9ER | 1-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE |
| LES020ZG-3N292V | 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE |
| LTC6102CMS8-1#PBF | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| LSN2-T/22-D12NBG | DC-DC REG PWR SUPPLY MODULE |
| LY3200ALH | SPECIALTY ANALOG CIRCUIT, PBGA10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3572 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Full-Bridge Piezo Driver with 900mA Boost Converter |
| LT3572EUF#PBF | 功能描述:IC DRIVER PIEZO DUAL 20-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:步进电机驱动器，1-2 相，2 相 评估套件:- 输出数:1 电流 - 输出:800mA 电压 - 负载:10 V ~ 28 V 电源电压:4.75 V ~ 5.25 V 工作温度:-20°C ~ 90°C 安装类型:表面贴装 封装/外壳:28-SOP + 2 翼片裸露焊盘 供应商设备封装:28-HSOPHC（15.2x7.9） 包装:剪切带 (CT) 其它名称:869-1268-1 |
| LT3572EUF#TRPBF | 功能描述:IC DRIVER PIEZO DL 20-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 产品变化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 标准包装:1 系列:- 应用:DC 电机控制器，无刷（BLDC），3 相 评估套件:可供 输出数:1 电流 - 输出:100mA 电压 - 负载:5.25 V ~ 20 V 电源电压:5.25 V ~ 20 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-VQFN（7x7） 包装:剪切带 (CT) 其它名称:ATA6833-PLQWCT |
| LT3572EUF-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Full-Bridge Piezo Driver with 900mA Boost Converter |
| LT3572EUF-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Full-Bridge Piezo Driver with 900mA Boost Converter |
发布紧急采购，3分钟左右您将得到回复。