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| 型号： | TPS61097-18DBVT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.475 A BATTERY CHARGE CONTROLLER, PDSO5 |
| 封装： | 2.80 X 2.90 MM, PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 13/26页 |
| 文件大小： | 0K |
| 代理商： | TPS61097-18DBVT |
2
L
C
2
TPS61097
SLVS872B – JUNE 2009 – REVISED DECEMBER 2009
www.ti.com
ISW = 400 mA, VIN = 1.8 V
(7)
The following inductor series from different suppliers have been used with TPS61097 converters:
Table 3. List of Inductors
VENDOR
INDUCTOR SERIES
Coilcraft
DO3314
TDK
NLC565050T
Taiyo Yuden
CBC2012T
Capacitor Selection
Input Capacitor
The input capacitor should be at least 10-
μF to improve transient behavior of the regulator and EMI behavior of
the total power supply circuit. The input capacitor should be a ceramic capacitor and be placed as close as
possible to the VIN and GND pins of the IC.
Output Capacitor
For the output capacitor C2 , it is recommended to use small ceramic capacitors placed as close as possible to
the VOUT and GND 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, the use of a small ceramic capacitor with an capacitance value of around
2.2
μF in parallel to the large one is recommended. This small capacitor should be placed as close as possible to
the VOUT and GND pins of the IC.
A minimum capacitance value of 4.7
μF should be used, 10 μF are recommended. If the inductor value exceeds
4.7
μH, the value of the output capacitance value needs to be half the inductance value or higher for stability
reasons, see Equation 8.
(8)
The TPS61097 is not sensitive to the ESR in terms of stability. Using low ESR capacitors, such as ceramic
capacitors, is recommended to minimize output voltage ripple. If heavy load changes are expected, the output
capacitor value should be increased to avoid output voltage drops during fast load transients.
Table 4. Recommended Output Capacitors
VENDOR
CAPACITOR SERIES
Murata
GRM188R60J106M47D 10
μF 6.3V X5R 0603
Murata
GRM319R61A106KE19 10
μF 10V X5R 1206
20
Copyright 2009, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61097-18DRSR | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH LOW QUIESCENT CURRENT |
| TPS61097-27DBVR | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH LOW QUIESCENT CURRENT |
| TPS61097-27DBVT | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH LOW QUIESCENT CURRENT |
| TPS61097-27DRSR | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH LOW QUIESCENT CURRENT |
| TPS61097-30DBVR | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW INPUT VOLTAGE SYNCHRONOUS BOOST CONVERTER WITH LOW QUIESCENT CURRENT |
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