收藏本站
参数资料
型号： TPS622317DRYR
厂商： TEXAS INSTRUMENTS INC
元件分类： 稳压器
英文描述： 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
封装： 1 X 1.50 MM, 0.60 MM HEIGHT, GREEN, PLASTIC, MO-287UFAD, SON-6
文件页数： 15/32页
文件大小： 1073K
代理商： TPS622317DRYR
TPS62230
L
1/2.2 H
m
VIN
EN
MODE
GND
FB
SW
2.5V
VOUT
2.7V-6V
VIN
2.2
CIN
mF
4.7 F
m
COUT
1.8V
VOUT
2.05V-6V
VIN
2.2 F
m
CIN
L
1/2.2 H
m
C
4.7 F
OUT
m
TPS62231
VIN
EN
MODE
SW
FB
GND
1.2V
VOUT
2.05V-6V
VIN
2.2 F
m
CIN
L
1/2.2 H
m
C
4.7 F
OUT
m
TPS62232
VIN
EN
MODE
SW
FB
GND
L
Vout
1
Vin
I
= Vout
L
-
D
L
Lmax
outmax
I
= I
+
2
D
TPS62231, TPS62230, TPS62232, TPS62233, TPS62234, TPS62235
TPS62236, TPS62237, TPS62238, TPS62239, TPS622310, TPS622311
TPS622312, TPS622313, TPS622314, TPS622315, TPS622316, TPS622317
SLVS941D – APRIL 2009 – REVISED AUGUST 2010
www.ti.com
APPLICATION INFORMATION
Figure 50. TPS62230 2.5V Output
Figure 51. TPS62231 1.8V Output
Figure 52. TPS62232 1.2V Output
OUTPUT FILTER DESIGN (INDUCTOR AND OUTPUT CAPACITOR)
The TPS6223X is optimized to operate with effective inductance values in the range of 0.7mH to 4.3mH and with
effective output capacitance in the range of 2.0mF to 15mF. The internal compensation is optimized to operate
with an output filter of L = 1.0mH/2.2mH and COUT = 4.7mF. Larger or smaller inductor/capacitor values can be
used to optimize the performance of the device for specific operation conditions. For more details, see the
CHECKING LOOP STABILITY section.
INDUCTOR SELECTION
The inductor value affects its peak-to-peak ripple current, the PWM-to-PFM transition point, the output voltage
ripple and the efficiency. The selected inductor has to be rated for its dc resistance and saturation current. The
inductor ripple current (
ΔIL) decreases with higher inductance and increases with higher VI N or VO UT. Equation 4
calculates the maximum inductor current under static load conditions. The saturation current of the inductor
should be rated higher than the maximum inductor current as calculated with Equation 5. This is recommended
because during heavy load transient the inductor current will rise above the calculated value.
(4)
(5)
With:
f = Switching Frequency
L = Inductor Value
ΔIL= Peak to Peak inductor ripple current
ILmax = Maximum Inductor current
22
Submit Documentation Feedback
Copyright 2009–2010, Texas Instruments Incorporated
相关PDF资料
PDF描述
TPS622312DRY 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
TPS622312DRYT 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
TPS62238DRY 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
TPS622315DRYT 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
TPS62236DRYR 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6
相关代理商/技术参数
参数描述
TPS622317DRYT 功能描述:直流/直流开关调节器 3MHz Ultra Small Step Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
TPS622318DRYR 功能描述:直流/直流开关转换器 3MHz Ultra Sm Step Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
TPS622318DRYT 功能描述:直流/直流开关转换器 3MHz Ultra Sm Step Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
TPS622319DRYT 功能描述:IC REG BUCK FIXED 500MA 6SON 制造商:texas instruments 系列:- 包装:剪切带（CT） 零件状态:在售 功能:降压 输出配置:正 拓扑:降压 输出类型:固定 输出数:1 电压 - 输入（最小值）:2.05V 电压 - 输入（最大值）:6V 电压 - 输出（最小值/固定）:1.2V 电压 - 输出（最大值）:- 电流 - 输出:500mA 频率 - 开关:2MHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:6-UFDFN 供应商器件封装:6-SON（1.45x1） 标准包装:1
TPS62231DRYR 功能描述:直流/直流开关转换器 3 MHz Ultra Small Step Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*