参数资料
| 型号： | MIC5283YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 9/19页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .15A 8MLF |
| 标准包装： | 5,000 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.22 V ~ 5.5 V |
| 输入电压： | 6 V ~ 120 V |
| 电压 - 压降（标准）： | 1.8V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA |
| 电流 - 限制（最小）： | 180mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VDFN 裸露焊盘，8-MLF? |
| 供应商设备封装： | 8-MLF?（3x3） |
| 包装： | 带卷 (TR) |
Micrel, Inc.
Detailed Description
The MIC5283 voltage regulator accepts a 6V to 120V input
voltage and has an ultra-low 8μA typical quiescent current
while offering an excellent line transient response and
PSRR. These features make it ideal for harsh, noisy
MIC5283
Output Voltage Setting
For the MIC5283YML and MIC5283YME, V OUT is
programmable from 1.22V to 5.5V using an external
resistive divider. V OUT is set using the following equation:
V OUT ? V REF ? ?
? 1 ?
environments. All options offer 150mA of output current.
The MIC5283YML and MIC5283YME offer an adjustable
output voltage from 1.22V to 5.5V. The MIC5283-3.3YML
and MIC5283-3.3YME offer fixed 3.3V outputs and the
? R1
? R2
?
?
MIC5283-5.0YML and MIC5283-5.0YME offer fixed 5.0V
outputs. The YME packaged devices feature a heat slug to
more effectively remove heat from the die.
Applications Information
Thermal Protection
The MIC5283 has internal thermal shutdown to protect it
from excessive heating of the die. When the junction
temperature exceeds approximately +155°C, the output is
disabled and the device begins to cool down. The device
turns back on when the junction temperature cools by
15°C. This will result in a cycled output during continuous
thermal-overload conditions.
Current Limit
The MIC5283 features output current-limit protection. The
output sustains a continuous short circuit to GND without
damage to the device, but thermal shutdown often results.
The typical value for the current limit of the MIC5283 is
300mA.
Input Capacitor
Connect a 1.0μF capacitor from VIN to GND. Micrel
recommends the C5750X7R2E105M, 1.0μF, 250V
capacitor made by TDK. When using a different capacitor,
assure that the voltage rating of the capacitor has
adequate headroom to withstand any potential transient.
CPSRR Capacitor
To maintain high power supply rejection, connect a 0.1μF
capacitor from CPSRR to GND. The voltage rating of the
capacitor must be at least 14V.
Output Capacitor
Connect a 10μF capacitor from VOUT to GND. Assure that
the voltage rating of the capacitor exceeds the designed
output voltage of the MIC5283.
where V REF = 1.22V, and R1 and R2 form the feedback
voltage divider from V OUT to ground.
Thermal Measurements
It is always prudent to measure an IC’s case temperature
to make sure that it is within operating limits, but it is easy
to get erroneous results. The standard thermocouple that
comes with many voltage meters uses a large wire gauge
that behaves like a heat-sink, resulting in artificially low
case temperature measurements. Use a thermocouple of
36-gauge wire or smaller, such as the Omega (5SC-TT-K-
36-36), to minimize the heat-sinking effect. Also, apply a
thermal compound to maximize heat transfer between the
IC and the thermocouple.
An infrared thermometer is a recommended alternative.
The IR thermometer from Optris has a 1mm spot size,
ideal for monitoring small surface mount packages. Also,
the optional stand makes it easy to keep the beam on the
IC for long periods of time.
March 2012
9
M9999-030812-A
相关PDF资料 |
PDF描述 |
|---|---|
| MIC5295-3.3YD TR | IC REG LDO 3.3V .15A TO-252-5 |
| MIC5301-2.1YMT TR | IC REG LDO 2.1V .15A 6-MLF |
| MIC5302-2.8YMT TR | IC REG LDO 2.8V .15A 4-MLF |
| MIC5303-3.0YMT TR | IC REG LDO 3V .3A 4-MLF |
| MIC5304-XDYMT TR | IC REG LDO 1.85V/3.15V 6-TMLF |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5295-3.0YD | 制造商:Micrel 功能描述:Micrel MIC5295-3.0YD, Low-Dropout (LDO) Voltage Regulators 制造商:Micrel Inc 功能描述:IC LDO 3V 150MA LOW IQ 5TO252 制造商:Micrel Inc 功能描述:IC, LDO, 3V, 150MA, LOW IQ, 5TO252 制造商:Micrel Inc 功能描述:IC, LDO, 3V, 150MA, LOW IQ, 5TO252; Primary Input Voltage:24V; Output Voltage Fixed:3V; Dropout Voltage Vdo:300mV; Voltage Regulator Case Style:TO-252; No. of Pins:5; Output Current:150mA; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes 制造商:Micrel 功能描述:Low Current, 150mA LDO Regulator |
| MIC5295-3.0YD TR | 功能描述:低压差稳压器 - LDO Low Quiescent, High Vin 150mA 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 |
| MIC5295-3.0YD-TR | 功能描述:Linear Voltage Regulator IC Positive Fixed 1 Output 3V 150mA TO-252-5 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 稳压器拓扑:正，固定式 电压 - 输出:3V 电流 - 输出:150mA 电压 - 跌落（典型值）:0.3V @ 150mA 稳压器数:1 电压 - 输入:最高 24V 电流 - 限制（最小值）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-252-6，DPak（5 引线 + 接片） 供应商器件封装:TO-252-5 标准包装:1 |
| MIC5295-3.3YD | 制造商:Micrel 功能描述:Micrel MIC5295-3.3YD, Low-Dropout (LDO) Voltage Regulators 制造商:Micrel Inc 功能描述:LDO 3.3V 150MA LOW IQ 5TO252 制造商:Micrel Inc 功能描述:LDO, 3.3V, 150MA, LOW IQ, 5TO252 制造商:Micrel Inc 功能描述:LDO, 3.3V, 150MA, LOW IQ, 5TO252; Primary Input Voltage:24V; Output Voltage Fixed:3.3V; Dropout Voltage Vdo:300mV; Voltage Regulator Case Style:TO-252; No. of Pins:5; Output Current:150mA; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes 制造商:Micrel 功能描述:Low Current, 150mA LDO Regulator |
| MIC5295-3.3YD TR | 功能描述:低压差稳压器 - LDO Low Quiescent, High Vin 150mA 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 |
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