- 您现在的位置：买卖IC网 > PDF目录69514 > TPS61013DGSR (TEXAS INSTRUMENTS INC) 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 PDF资料下载
参数资料
| 型号： | TPS61013DGSR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | GREEN, PLASTIC, MSOP-10 |
| 文件页数： | 9/33页 |
| 文件大小： | 868K |
| 代理商： | TPS61013DGSR |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
www.ti.com
capacitor selection
C
min +
I
OUT
V
OUT * VBAT
DV
V
OUT
(5)
DVESR + IOUT
R
ESR
(6)
Compensation of the Control Loop
RC
100 k
CC1
10 pF
CC2
10 nF
COMP
TPS61010, TPS61011
TPS61012, TPS61013
TPS61014, TPS61015, TPS61016
SLVS314D – SEPTEMBER 2000 – REVISED JUNE 2005
Table 1. Recommended Inductors (continued)
VENDOR
RECOMMENDED INDUCTOR SERIES
Murata
Murata LQS66C
Murata LQN6C
TDK
TDK SLF 7045
TDK SLF 7032
The major parameter necessary to define the output capacitor is the maximum allowed output voltage ripple of
the converter. This ripple is determined by two parameters of the capacitor, the capacitance and the ESR. It is
possible to calculate the minimum capacitance needed for the defined ripple, supposing that the ESR is zero, by
using Equation 5.
Parameter f is the switching frequency and
V is the maximum allowed ripple.
With a chosen ripple voltage of 15 mV, a minimum capacitance of 10 F is needed. The total ripple is larger due
to the ESR of the output capacitor. This additional component of the ripple can be calculated using Equation 6.
An additional ripple of 30 mV is the result of using a tantalum capacitor with a low ESR of 300 m
. The total
ripple is the sum of the ripple caused by the capacitance and the ripple caused by the ESR of the capacitor. In
this example, the total ripple is 45 mV. It is possible to improve the design by enlarging the capacitor or using
smaller capacitors in parallel to reduce the ESR or by using better capacitors with lower ESR, like ceramics. For
example, a 10 F ceramic capacitor with an ESR of 50 m
is used on the evaluation module (EVM). Tradeoffs
must be made between performance and costs of the converter circuit.
A 10F input capacitor is recommended to improve transient behavior of the regulator. A ceramic capacitor or a
tantalum capacitor with a 100 nF ceramic capacitor in parallel placed close to the IC is recommended.
An R/C/C network must be connected to the COMP pin in order to stabilize the control loop of the converter.
Both the pole generated by the inductor L1 and the zero caused by the ESR and capacitance of the output
capacitor must be compensated. The network shown in Figure 5 satisfies these requirements.
Figure 23. Compensation of Control Loop
Resistor RC and capacitor CC2 depend on the chosen inductance. For a 10 H inductor, the capacitance of CC2
should be chosen to 10 nF, or in other words, if the inductor is XXH, the chosen compensation capacitor should
be XX nF, the same number value. The value of the compensation resistor is then chosen based on the
requirement to have a time constant of 1 ms, for the R/C network RC and CC2, hence for a 33 nF capacitor, a 33
k
resistor should be chosen for R
C.
Capacitor CC1 depends on the ESR and capacitance value of the output capacitor, and on the value chosen for
RC. Its value is calculated using Equation 7.
17
相关PDF资料 |
PDF描述 |
|---|---|
| TPS61016DGSG4 | 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61013DGSG4 | 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61012DGSR | 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61015DGSRG4 | 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS61011DGSR | 1.3 A SWITCHING REGULATOR, 780 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61013DGSRG4 | 功能描述:开关变换器、稳压器与控制器 Lo-In Voltage Sync Boost Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS61013EVM-157 | 功能描述:电源管理IC开发工具 Fixed 2.5-V High-Eff Boost Conv RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS61014 | 制造商:TI 制造商全称:Texas Instruments 功能描述:HIGH-EFFICIENCY, 1-CELL AND 2-CELL BOOST CONVERTERS |
| TPS61014DGS | 功能描述:直流/直流开关调节器 Lo-In Voltage Sync Boost 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 |
| TPS61014DGSG4 | 功能描述:直流/直流开关调节器 Lo-In Voltage Sync Boost 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 |
发布紧急采购，3分钟左右您将得到回复。