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| 型号： | MIC5190BML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 10/13页 |
| 文件大小： | 463K |
| 描述： | IC REG CTRLR SGL POS ADJ 10-MLF |
| 标准包装： | 5,000 |
| 类型： | 正，可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 电流 - 电源： | 15mA |
| 输入电压： | 0.9 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-VFDFN 裸露焊盘，10-MLF? |
| 供应商设备封装： | 10-MLF?（3x3） |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC5190BMLTR MIC5190BMLTR-ND |
MIC5190
Micrel
The gate-source threshold specified in most MOSFET data
sheets refers to the minimum voltage needed to fully enhance
the MOSFET. Although for the most part, the MOSFET will be
operating in the linear region and the V
GS
(gate-source
voltage) will be less than the fully enhanced V
GS
, it is
recommended the V
CC
voltage has 2V over the minimum
V
GS
and output voltage. This is due to the saturation voltage
of the MIC5190 output driver.
V
CC1,2
e 2V + V
GS
+ V
OUT
For our example, with a 1.5V output voltage, our MOSFET is
fully enhanced at 4.5V
GS
, and so our V
CC
voltage should be
greater or equal to 8V.
Input Capacitor
Good input bypassing is important for improved perfor-
mance. Low ESR and low ESL input capacitors reduce both
the drain of the N-Channel MOSFET, as well as the source
impedance to the MIC5190. When a load transient on the
output occurs, the load step will also appear on the input.
Deviations on the input voltage will be reduced by the
MIC5190s PSRR, but nonetheless appear on the output.
There really is no minimum input capacitance, but it is
recommended that the input capacitance be equal to or
greater than the output capacitance for best performance.
Output Capacitor
The MIC5190 is stable with any type or value of output
capacitor (even without any output capacitor!). This allows
the output capacitor to select which parameters of the regu-
lator are important. In cases where transient response is the
most important, low ESR and low ESL ceramic capacitors are
recommended. Also, the more capacitance on the output, the
better the transient response.
4
5
3
1
2
VIN
EN/UVLO
CSH
VOUT
FB
LSD
560pF
8.06k
BST
COMP
6
HSD
12
VSW
11
GND
D1
SD103BWS
2.2礔
10V
0.1礔
10
8
VDD
7
U1 MIC2198-BML
9
100pF
11.5k
100k
V
OUT
V
OUT
CSH
J2
EN
J1
+V
IN
V
IN
CSH
V
OUT
10k
10k
10&
10&
1礔
25V
330礔
16V
10礔
10礔
10礔
10礔
10礔
22礔
1V
OUT
@10A
D2
1N5819HW
IRF7821
IRF7821
L1
1.8礖
CDEP134-1R8MC-H
12.4k
330礔
Tantalum
OUT
VCC1
VCC2
VIN
FB
ISENSE
COMP
GND
10nF
100&
100&
10&
MIC5190
1礔
V
OUT
Figure 9. Post Regulator
December 2005
10 M9999-120105
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5190BMM | 功能描述:IC REG CTRLR SGL POS ADJ 10MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| MIC5190BMM TR | 功能描述:IC REG CTRLR SGL POS ADJ 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性晶体管驱动器 系列:- 产品培训模块:More Information on LDOs 标准包装:2,500 系列:- 类型:正，固定式 输出数:2 输出电压:2.8V，3.3V 电流 - 电源:12mA 输入电压:5 V ~ 22 V 工作温度:0°C ~ 70°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| MIC5190YML | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Ultra High-Speed, High-Current Active Filter/LDO Controller |
| MIC5190YML TR | 功能描述:低压差控制器 - LDO Ultra Hi-Speed Hi-Current Active Filter/LDO Controller(Lead Free) RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
| MIC5190YMM | 功能描述:低压差控制器 - LDO Ultra Hi-Speed Hi-Current Active Filter/LDO Controller(Lead Free) RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
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