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参数资料
| 型号： | L6727TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | LEAD FREE, SOP-8 |
| 文件页数： | 19/34页 |
| 文件大小： | 974K |
| 代理商： | L6727TR |
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20 A demonstration board
L6727
26/34
Doc ID 12933 Rev 4
11.1
Board description
11.1.1
Power input (VIN)
This is the input voltage for the power conversion. The high-side MOSFET drain is
connected to this input. Supply must be compliant with VIN recommended operating
conditions and capacitors rating.
If VIN voltage is compliant also to VCC range listed in recommended operating conditions, it
can supply also the device through R16 resistor. When VCC > 5 V, R6 need to be removed.
11.1.2
Power output (VOUT)
This is the output voltage of the power conversion. The output voltage is programmed to
1.25 V. It can be changed by replacing R13. R6 allows to adjust OCP threshold when
VCC = 5 V.
11.1.3
IC additional supply (VCC)
The controller can be supplied separately from the power conversion through VCC input. In
this case, to separate VCC from VIN, R16 resistor must be removed. When VCC > 5 V, R6
need to be removed.
11.1.4
Test points
The following test points are provided to allow easy probing of important signals:
–
COMP: output of the error amplifier;
–
FB: inverting input of the error amplifier;
–
PH: Phase pin of the device;
–
LG: Low-Side gate pin of the device;
–
UG: High-Side gate pin of the device.
11.1.5
Demonstration board efficiency
Figure 15.
20 A demonstration board efficiency
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| L6727 | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
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| L6730D | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
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相关代理商/技术参数 |
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| L6728 | 功能描述:DC/DC 开关控制器 Sngl phase PWM controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6728_0706 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single phase PWM controller with Power Good |
| L6728A | 功能描述:电压模式 PWM 控制器 Hi-Freq. singl-phase PWM controller w/Po RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| L6728AH | 功能描述:软开关 PWM 控制器 Sgl Output 600 KHz DFPN-10 RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6728AHTR | 功能描述:电流型 PWM 控制器 HIGH FREQ PWM CNTRL W/PO RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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