参数资料
型号: TPS53124PWR
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: DUAL SWITCHING CONTROLLER, PDSO28
封装: GREEN, PLASTIC, TSSOP-28
文件页数: 7/22页
文件大小: 656K
代理商: TPS53124PWR
(
)
(
)
1
3
IN (max)
OUT
IN (max)
OUT
IND( ripple )
OUT (max)
IN (max)
L
f
V
I
-
-
=
×
=
(5)
1
IN (max)
OUT
TRIP
IND( peak )
DS ( on )
IN (max)
(V
V
) V
V
R
L
f
V
I
-
=
+
(6)
www.ti.com ..................................................................................................................................................... SLUS825B – FEBRUARY 2008 – REVISED MAY 2008
The external components selection is much simpler in D-CAP Mode.
1. Choose inductor.
The inductance value should be determined to give the ripple current of approximately 1/4 to 1/2 of maximum
output current. Larger ripple current increases output ripple voltage, improves S/N ratio and contributes to a
stable operation.
The inductor also needs to have low DCR to achieve good efficiency, as well as enough room above peak
inductor current before saturation. The peak inductor current can be estimated as follows.
2. Choose output capacitor.
Polymer aluminum capacitor, organic semiconductor capacitor or specialty polymer capacitor are
recommended. Determine ESR to meet required ripple voltage indicated previously.
Copyright 2008, Texas Instruments Incorporated
15
Product Folder Link(s): TPS53124
相关PDF资料
PDF描述
TPS53125PW DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO24
TPS53125PWR DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO24
TPS53126PWR 0.17 A DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO24
TPS53126RGET 0.17 A DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQCC24
TPS53126PW 0.17 A DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO24
相关代理商/技术参数
参数描述
TPS53124PWRG4 功能描述:DC/DC 开关控制器 Dual Synch Step-Down Cntrlr 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
TPS53124RGER 功能描述:DC/DC 开关控制器 Dual Synch Step-Down 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
TPS53124RGERG4 功能描述:DC/DC 开关控制器 Dual Synch Step-Down Cntrlr 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
TPS53124RGET 功能描述:DC/DC 开关控制器 Dual Synch Step-Down 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
TPS53124RGETG4 功能描述:DC/DC 开关控制器 Dual Synch Step-Down Cntrlr 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