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参数资料
| 型号： | MC33761SNT1-025G |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.5V 80MA 5TSOP |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2.5V |
| 输入电压： | 最高 12V |
| 电压 - 压降（标准）： | 0.16V @ 80mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 80mA |
| 电流 - 限制（最小）： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSOP（0.059"，1.50mm 宽）5 引线 |
| 供应商设备封装： | 5-TSOP |
| 包装： | 剪切带 (CT) |
| 其它名称： | MC33761SNT1-025GOSCT |
MC33761
APPLICATION HINTS
P max + Jmax
T * T
q JA
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
MC33761 package. Higher values will correspondingly
improve the overall line transient response.
Output Decoupling
Thanks to a novel concept, the MC33761 is a stable
component and does not require any specific Equivalent
Series Resistance (ESR) neither a minimum output current.
Capacitors exhibiting ESRs ranging from a few m W up to
3.0 W can thus safely be used. The minimum decoupling
value is 1.0 m F and can be augmented to fulfill stringent load
transient requirements. The regulator accepts ceramic chip
capacitors as well as tantalum devices.
Protections
The MC33761 hosts several protections, giving natural
ruggedness and reliability to the products implementing the
component. The output current is internally limited to a
maximum value of 180 mA typical while temperature
shutdown occurs if the die heats up beyond 125 ° C. These
values let you assess the maximum differential voltage the
device can sustain at a given output current before its
protections come into play.
The maximum dissipation the package can handle is given
by:
A
R
If T Jmax is limited to 125 ° C, then the MC33761 can
dissipate up to 470 mW @ 25 ° C. The power dissipated by
the MC33761 can be calculated from the following formula:
gnd out
Noise Decoupling
Unlike other LDOs, the MC33761 is a true low?noise
Ptot + V
in
I
(I
) ) V
in
* V out
I out
) I out
gnd
regulator. Without the need of an external bypass capacitor,
it typically reaches the incredible level of 40 m VRMS overall
noise between 100 Hz and 100 kHz. To give maximum
insight on noise specifications, ON Semiconductor includes
or
Vin max +
Ptot ) V out I out
I
spectral density graphics. The classical bypass capacitor
impacts the start?up phase of standard LDOs. However,
thanks to its low?noise architecture, the MC33761 operates
without a bypass element and thus offers a typical 40 m s
start?up phase.
If a 80 mA output current is needed, the ground current is
extracted from the data?sheet curves: 4.0 mA @ 80 mA. For
a MC33761SNT1?28 (2.8 V) delivering 80 mA and
operating at 25 ° C, the maximum input voltage will then be
8.3 V.
Typical Applications
The following picture portrays the typical application of
the MC33761.
http://onsemi.com
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33761SNT1-028 | 功能描述:低压差稳压器 - LDO 2.8V 80mA Output 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 |
| MC33761SNT1-028G | 功能描述:低压差稳压器 - LDO 2.8V 80mA Output w/Enable Low Noise 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 |
| MC33761SNT1-029 | 功能描述:低压差稳压器 - LDO 2.9V 80mA Output 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 |
| MC33761SNT1-029G | 功能描述:低压差稳压器 - LDO 2.9V 80mA Output w/Enable Low Noise 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 |
| MC33761SNT1-030 | 功能描述:低压差稳压器 - LDO 3.0V 80mA Output 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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