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参数资料
| 型号： | LT3663HMS8E#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件页数： | 12/16页 |
| 文件大小： | 188K |
| 代理商： | LT3663HMS8E#TRPBF |
LT3663
5
3663fb
TYPICAL PERFORMANCE CHARACTERISTICS
BOOST Pin Current
Boost Diode Vf
TA = 25°C, unless otherwise noted.
SWITCH CURRENT (A)
BOOST
PIN
CURRENT
(mA)
35
30
25
20
3653 G07
0
5
15
10
0
0.2
0.4
0.5
0.8
1.0
1.2
DIODE CURRENT (mA)
BOOST
DIODE
V
F(V)
1.4
1.2
1
0.8
3653 G09
0
0.2
0.6
0.4
0
50
100
150
200
250
300
SWITCH CURRENT (A)
SWITCH
VOL
TAGE
DROP
(mV)
400
350
3663 G01
0
50
100
150
200
250
300
0
0.2
0.4
0.6
0.8
1
1.2
125°C
–45°C
25°C
Switch Voltage Drop
PIN FUNCTIONS
BOOST: The BOOST pin is used to provide a drive voltage,
higher than the input voltage, to the internal power switch.
The BOOST pin is also internally connected to the cathode
of the BOOST diode.
GND (Exposed Pad Pin 9) : Ground. The exposed pad
must be soldered to the PCB and electrically connected
to ground. Use a large ground plane and thermal vias to
optimize thermal performance.
FB (LT3663): The LT3663 regulates the FB pin to 0.8V.
Connect the feedback resistor divider tap to this pin.
ILIM: Output Current Limit Program Pin. Connect a resistor
to ground to program the regulator output current limit.
ISENSE: The ISENSE pin is the positive input to the internal
output current limit sense resistor. The ISENSE pin is also
the anode to the internal BOOST diode.
RUN: The Run pin is used to put the LT3663 into shutdown
mode. Tie to ground to shut down the LT3663. Tie to 2.5V
or more for normal operation. If the shutdown feature is
not used, connect this pin to VIN.
SW: The SW pin is the output of the internal power switch.
Connect this pin to the inductor, catch diode and boost
capacitor.
VIN: The VIN pin supplies current to the LT3663’s internal
regulator and internal power switch. Capacitively bypass
the pin to ground.
VOUT: The VOUT pin is connected to the negative terminal
of the internal output current limit sense resistor.
VOUTS (LT3663-X): Output Voltage Sense Pin. Connect to
the positive terminal of the output capacitor.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3663IDCB#TRMPBF | 功能描述:IC REG BUCK ADJ 1.2A 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3663IDCB#TRPBF | 功能描述:IC REG BUCK ADJ 1.2A 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3663IDCB-5#TRMPBF | 制造商:Linear Technology 功能描述: |
| LT3663IDCB-5#TRPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 7.5V to 36V 8-Pin DFN EP T/R |
| LT3663IMS8E#PBF | 功能描述:IC REG BUCK ADJ 1.2A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
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