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参数资料
| 型号： | LTC3586EUFE#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC38 |
| 封装： | 4 X 6 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-38 |
| 文件页数： | 26/36页 |
| 文件大小： | 317K |
| 代理商： | LTC3586EUFE#PBF |
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LTC3586/LTC3586-1
32
3586fa
APPLICATIONS INFORMATION
–
+
ERROR
AMP
0.8V
R1
R2
3586 F08
FB3
VC3
CP1
VOUT3
–
+
ERROR
AMP
0.8V
R1
R3
C3
RFB
3586 F09
FB3
VC3
C2
C1
R2
VOUT3
Figure 8. Error Amplier with Type I Compensation
Figure 9. Error Amplier with Type III Compensation
VIN4
LTC3586/
LTC3586-1
L
SW4
R1
COUT
CPL
R2
3586 F10
VOUT4
FB4
Figure 10. Boost Converter Application Circuit
Boost Regulator Output Voltage Programming
The boost regulator can be programmed for output volt-
ages up to 5V. The output voltage is programmed using a
resistor divider from the VOUT4 pin connected to the FB4
pin such that:
VV
R
OUT
FB
44
1
2
1
=+
where VFB4 is 0.8V. See Figure 10.
Typical values for R1 are in the range of 40k to 1M. Too
small a resistor will result in a large quiescent current
in the feedback network and may hurt efciency at low
current. Too large a resistor coupled with the FB4 pin ca-
pacitance will create an additional pole which may result
in loop instability. If large values are chosen for R1 and
R2, a phase-lead capacitor, CPL, across resistor R1 can
improve the transient response. Recommended values
for CPL are in the range of 2pF to 10pF.
Printed Circuit Board Layout Considerations
In order to be able to deliver maximum current under all
conditions, it is critical that the Exposed Pad on the backside
of the LTC3586/LTC3586-1 packages be soldered to the PC
board ground. Failure to make thermal contact between
the Exposed Pad on the backside of the package and the
copper board will result in higher thermal resistances.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3586EUFE-1#PBF | BATTERY CHARGE CONTROLLER, PQCC38 |
| LTC3586EUFE-1#TRPBF | BATTERY CHARGE CONTROLLER, PQCC38 |
| LTC3672BEDC-1#PBF | 1.1 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3728LZEUH | 3 A DUAL SWITCHING CONTROLLER, 590 kHz SWITCHING FREQ-MAX, PQCC28 |
| LTC3773EUHF | SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQCC38 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3586EUFE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency USB Power Manager with Boost, Buck-Boost and Dual Bucks |
| LTC3588-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Ultralow Voltage Step-Up Converter |
| LTC3588-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3588-2_10 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Piezoelectric Energy Harvesting Power Supply with 14V Minimum VIN |
| LTC3588EDD-1#PBF | 功能描述:IC ENERGY HARVESTING PSU 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF) |
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