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参数资料
| 型号： | LT3506IDHD#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3.6 A SWITCHING REGULATOR, 650 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 5 X 4 MM, PLASTIC, MO-229WJGD-2, DFN-16 |
| 文件页数： | 10/24页 |
| 文件大小： | 210K |
| 代理商： | LT3506IDHD#TR |
LT3506/LT3506A
18
3506afc
Single, Low-Ripple 3.2A Output
The LT3506 can generate a single, low-ripple 3.2A output
if the outputs of the two switching regulators are tied
together and share a single output capacitor. By tying the
two FB pins together and the two VC pins together, the
two channels will share the load current. There are several
advantages to this two-phase buck regulator. Ripple cur-
rents at the input and output are reduced, reducing volt-
age ripple and allowing the use of smaller, less expensive
capacitors. Although two inductors are required, each will
be smaller than the inductor required for a single-phase
regulator. This may be important when there are tight
height restrictions on the circuit. The Typical Applications
section shows circuits with maximum heights of 1.4mm,
1.8mm and 2.1mm.
There is one special consideration regarding the two phase
circuit. When the difference between the input voltage and
output voltage is less than 2.5V, then the boost circuits may
prevent the two channels from properly sharing current.
If, for example, channel 1 gets started rst, it can supply
the load current, while channel 2 never switches enough
current to get its boost capacitor charged. In this case,
channel 1 will supply the load until it reaches current limit,
the output voltage drops, and channel 2 gets started. The
solution is to generate a boost supply generated from
either SW pin that will service both BOOST pins. The low
prole, single output 5V to 3.3V converter shown in the
Typical Applications section shows how to do this.
Other Linear Technology Publications
Application Notes 19, 35 and 44 contain more detailed
descriptions and design information for buck regulators
and other switching regulators. The LT1376 data sheet
has a more extensive discussion of output ripple, loop
compensation and stability testing. Design Note 100
shows how to generate a dual (+ and –) output supply
using a buck regulator.
APPLICATIONS INFORMATION
相关PDF资料 |
PDF描述 |
|---|---|
| LT3506IDHD | 3.6 A SWITCHING REGULATOR, 650 kHz SWITCHING FREQ-MAX, PDSO16 |
| LT3507AIUHF#TRPBF | SWITCHING REGULATOR, PQCC38 |
| LT3507AEFE#TRPBF | SWITCHING REGULATOR, PDSO38 |
| LT3507AHUHF#TRPBF | SWITCHING REGULATOR, PQCC38 |
| LT3507AHFE#PBF | SWITCHING REGULATOR, PDSO38 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3506IDHD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
| LT3506IFE | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
| LT3506IFE#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:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT3506IFE#TRPBF | 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:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT3506IFE-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 1.6A Step-Down Switching Regulator |
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