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参数资料
| 型号： | LT3506AEDHD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1.6A DL 16DFN |
| 标准包装： | 73 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 22 V |
| 输入电压： | 3.6 V ~ 25 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.1MHz |
| 电流 - 输出： | 1.6A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-DFN（5x4） |
LT3506/LT3506A
APPLICATIONS INFORMATION
The minimum input voltage of an LT3506 application is
limited by the minimum operating voltage (<3.6V) and by
the maximum duty cycle as outlined above. For proper
start-up, the minimum input voltage is also limited by
the boost circuit. If the input voltage is ramped slowly,
or the LT3506 is turned on with its RUN/SS pin when the
output is already in regulation, then the boost capacitor
may not be fully charged. Because the boost capacitor is
charged with the energy stored in the inductor, the circuit
will rely on some minimum load current to get the boost
circuit running properly. This minimum load will depend
Minimum Input Voltage,
V OUT = 3.3V (LT3506A)
on input and output voltages, and on the arrangement of
the boost circuit. The minimum load generally goes to
zero once the circuit has started. The plots below show
the minimum load current to start and to run as a function
of input voltage for 3.3V and 5V outputs. In many cases
the discharged output capacitor will present a load to the
switcher which will allow it to start. The plots show the
worst-case situation where V IN is ramping very slowly.
Use a Schottky diode (such as the BAT-54) for the lowest
start-up voltage.
Minimum Input Voltage,
V OUT = 5V (LT3506A)
5.5
5.0
V IN TO START
T A = 25°C
D BOOST = 1N5817
BOOST DIODE
TIED TO OUTPUT
7.0
6.5
V IN TO START
T A = 25°C
D BOOST = 1N5817
BOOST DIODE
TIED TO OUTPUT
4.5
6.0
4.0
5.5
V IN TO RUN
3.5
V IN TO RUN
BOOST DIODE
5.0
BOOST DIODE
3.0
0.001
0.01
TIED TO INPUT
0.1
1
4.5
0.001
0.01
TIED TO INPUT
0.1
1
I LOAD (A)
3506 G14
I LOAD (A)
3506 G15
3506afc
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3506AEDHD-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
| LT3506AEDHD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
| LT3506AEFE | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
| LT3506AEFE#PBF | 功能描述:IC REG BUCK ADJ 1.6A DL 16TSSOP 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 |
| LT3506AEFE#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BUCK 1.1MHZ 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 1.1MHZ, TSSOP-16 |
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