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参数资料
| 型号： | TPS63010YFF |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 2.4 A SWITCHING REGULATOR, 2600 kHz SWITCHING FREQ-MAX, BGA20 |
| 封装： | 2.14 X 1.93 MM, LEAD FREE, DSBGA-20 |
| 文件页数： | 13/28页 |
| 文件大小： | 662K |
| 代理商： | TPS63010YFF |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第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
I
1 +
I
OUT
0.8 )
V
OUT VIN1 * VOUT
2
V
IN1
f
L
(4)
I
2 +
V
OUT
I
OUT
0.8
V
IN2
)
V
IN2
V
OUT * VIN2
2
V
OUT
f
L
(5)
CAPACITOR SELECTION
Input Capacitor
Output Capacitor
C
OUT + 5
L
mF
mH
(6)
SLVS653A – JUNE 2008 – REVISED AUGUST 2009 ........................................................................................................................................................ www.ti.com
maximum input voltage. In Equation 3 the minimum inductance, L2, for boost mode operation is calculated. The
recommended minimum inductor value is either L1 or L2 whichever is higher. As an example, a suitable inductor
for generating 3.3 V from a Li-Ion battery with a battery voltage range from 2.5 V up to 4.2 V is 2.2
H. The
recommended inductor value range is between 1
H and 4.7 H. In general, this means that at high voltage
conversion rates, higher inductor values offer better performance.
With the chosen inductance value, the peak current for the inductor in steady state operation can be calculated.
Equation 4 shows how to calculate the peak current I1 in step down mode operation and Equation 5 shows how
to calculate the peak current I2 in boost mode operation. VIN2 is the minimum input voltage.
The critical current value for selecting the right inductor is the higher value of I1 and I2. It also needs to be taken
into account that load transients and error conditions may cause higher inductor currents. This also needs to be
taken into account when selecting an appropriate inductor. The following inductor series from different suppliers
have been used with TPS6301x converters:
Table 1. List of Inductors
VENDOR
INDUCTOR SERIES
LPS3015
Coilcraft
LPS4012
FDK
MIPSA2520
LQH3NP
Murata
LQM2HP
Toko
FDSE0312
At least a 4.7-
F input capacitor is recommended to improve transient behavior of the regulator and EMI
behavior of the total power supply circuit. A ceramic capacitor placed as close as possible to the VIN and PGND
pins of the IC is recommended.
For the output capacitor, it is recommended to use small ceramic capacitors placed as close as possible to the
VOUT and PGND pins of the IC. If, for any reason, the application requires the use of large capacitors which can
not be placed close to the IC, using a smaller ceramic capacitor in parallel to the large one is recommended.
This small capacitor should be placed as close as possible to the VOUT and PGND pins of the IC.
To get an estimate of the recommended minimum output capacitance, Equation 6 can be used.
A capacitor with a value in the range of the calculated minimum should be used. This is required to maintain
control loop stability. There are no additional requirements regarding minimum ESR. There is also no upper limit
for the output capacitance value. Larger capacitors will cause lower output voltage ripple as well as lower output
voltage drop during load transients.
20
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS63010 TPS63011 TPS63012
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS63010YFFR | 功能描述:直流/直流开关调节器 Hi Eff Sgl Inductor Buck-Boost Cnvrtr 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 |
| TPS63010YFFT | 功能描述:直流/直流开关调节器 Hi Eff Sgl Inductor Buck-Boost Cnvrtr 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 |
| TPS63010YFFT | 制造商:Texas Instruments 功能描述:Power Supply IC |
| TPS63011YFFR | 功能描述:直流/直流开关调节器 Hi Eff Sgl Inductor Buck-Boost Cnvrtr 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 |
| TPS63011YFFT | 功能描述:直流/直流开关调节器 Hi Eff Sgl Inductor Buck-Boost Cnvrtr 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 |
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