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参数资料
| 型号： | LM10010SD |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, PDSO10 |
| 封装： | 3 X 3 MM, 0.50 MM PITCH, LLP-10 |
| 文件页数： | 2/12页 |
| 文件大小： | 308K |
| 代理商： | LM10010SD |
Using 1% resistor values, R
FB1 can be set to 6.81 k and
R
FB2 can be set to 8.06 k. This will yield a regulator output
range of 0.704V to 1.107V. At startup, the code of the
LM10010 will be 46d (101110b) and will output a 15.97 A.
This will give an output voltage of approximately 1.0V
(0.998V) when power is applied and both the LM10010 and
the LM21215A-1 come out of UVLO. Of course, values cal-
culated here will be dependent on the accuracy of the regu-
lator, the LM10010 IDAC, and the resistor values used in the
circuit.
Table 1 shows the codes and some of the resultant values of
the IDAC current and the corresponding regulator output volt-
age for the previous example.
TABLE 1. VID Codes with IDAC Current and Regulator
Voltage for the Example in Figure 4.
VID Code
IDAC Current
(A)
Regulator
Voltage (V)
000000b
59.20
0.7038
000001b
58.26
0.7102
000010b
57.32
0.7166
000011b
56.38
0.7230
...
111100b
2.82
1.0878
111101b
1.88
1.0941
111110b
0.94
1.1005
111111b
0.00
1.1069
PC BOARD GUIDELINES
The following guidelines should be followed when designing
the PC board for the LM10010:
- Place the LM10010 close to the regulator feedback pin to
minimize the FB trace length.
- Place a small capacitor, C
VDD, (1 nF) directly adjacent to the
VDD and GND pins of the LM10010 to help minimize tran-
sients which may occur on the input supply line.
- The high current path from the board’s input to the load and
the return path should be parallel and close to each other to
minimize loop inductance.
- The ground connections for the various components around
the LM10010 should be connected directly to each other, and
to the LM10010’s GND pins, and then connected to the sys-
tem ground at one point. Do not connect the various compo-
nent grounds to each other through the high current ground
line.
- For additional information about the operation of the regu-
lator, please consult the respective datasheet and application
notes on the repective evaluation boards.
www.national.com
10
LM10010
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM10010SD/NOPB | 功能描述:其他电源管理 RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| LM10010SDX | 制造商:TI 制造商全称:Texas Instruments 功能描述:VID Voltage Programmer for Point of Load Regulator |
| LM10010SDX/NOPB | 功能描述:其他电源管理 RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| LM10011 | 制造商:TI 制造商全称:Texas Instruments 功能描述:6/4-Bit VID Programmable Current DAC for Point of Load Regulators with Adjustable Start-Up Current |
| LM10011EVM | 制造商:Texas Instruments 功能描述:LM10011EVM - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:EVALUATION MODULE LM10011 |
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