参数资料
| 型号： | NCP623MN-50R2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .15A 6-DFN |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 12V |
| 电压 - 压降（标准）： | 0.18V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA |
| 电流 - 限制（最小）： | 175mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-VDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN（3x3） |
| 包装： | 带卷 (TR) |
NCP623
APPLICATION HINTS
Input Decoupling ? As with any regulator, it is necessary
to reduce the dynamic impedance of the supply rail that
feeds the component. A 1.0 m F capacitor either ceramic or
tantalum is recommended and should be connected close to
the NCP623 package. Higher values will correspondingly
improve the overall line transient response.
Output Decoupling ? Output capacitors exhibiting ESRs
If a 150 mA output current is needed, the ground current
is extracted from the data ? sheet curves: 6.5 mA @ 150 mA.
For a NCP623NW28R2 (2.8 V), the maximum input voltage
will then be 6.48 V, a rather comfortable margin.
Typical Application ? The following figure portraits the
typical application for the NCP623 where both input/output
decoupling capacitors appear.
ranging from a few m W up to 3.0 W can safely be used. The
minimum decoupling value is 1.0 m F and can be augmented
to fulfill stringent load transient requirements. The regulator
works with ceramic chip capacitors as well as tantalum
devices.
On/Off
C1
10 nF
Noise Performances ? Unlike other LDOs, the NCP623
6
5
4
is a true low ? noise regulator. With a 10 nF bypass capacitor,
it typically reaches 25 m VRMS overall noise between 100
Hz and 100 kHz. Spectral density graphics as well as noise
C3
1.0 m F
NCP623
C2
1.0 m F
dependency versus bypass capacitor information is included
in this datasheet.
1
2
3
The bypass capacitor impacts the startup phase of the
NCP623 as depicted by the data ? sheet curves. A typical
1.0 ms settling time is achieved with a 10 nF bypass
capacitor. However, due to its low ? noise architecture, the
NCP623 can operate without bypass and thus offers a typical
20 m s startup phase. In that case, the typical output noise
stays lower than 65 m VRMS between 100 Hz ? 100 kHz.
Protections ? The NCP623 includes several protections
Input Output
Figure 2. A Typical NCP623 Application with
Recommended Capacitor Values (DFN6)
functions. The output current is internally limited to a
minimum of 175 mA while temperature shutdown occurs if
the die heats up beyond 150 ° C. These value lets you assess
the maximum differential voltage the device can sustain at
Output
Input
a given output current before its protections come into play.
The maximum dissipation the package can handle is given
8
7
6
5
P max + Jmax
A
q JA
by:
T – T
R
If T Jmax is internally limited to 150 ° C, then the NCP623 can
dissipate up to 595 mW @ 25 ° C.
The power dissipated by the NCP623 can be calculated
C2
1.0 m F
C1
10 nF
1
NCP623
2 3
NC NC
4
On/Off
C3
1.0 m F
from the following formula:
Ptot + V @ I (I ) ) V
Ptot ) Vout @ I out
Vin max +
) I out
gnd
or
in gnd out in
I
* Vout @ I out
Figure 3. A Typical NCP623 Application with
Recommended Capacitor Values (Micro8)
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP623MN-50R2G | 功能描述:低压差稳压器 - LDO 150 LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP6251MNR2G | 功能描述:DC/DC 开关控制器 2/3/4 PHASE EMI 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 |
| NCP629 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:High Performance CMOS LDO Regulator with Enable and Enhanced ESD Protection in Chip Scale Package (CSP) |
| NCP629FC15T2G | 功能描述:低压差稳压器 - LDO HI PERFORMANCE CMOS RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP629FC18T2G | 功能描述:低压差稳压器 - LDO HI PERFORMANCE CMOS RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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