参数资料
| 型号： | MIC5280YME TR |
| 厂商： | Micrel Inc |
| 文件页数： | 9/14页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 25MA 8SOIC |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.22 V ~ 5 V |
| 输入电压： | 4.5 V ~ 120 V |
| 电压 - 压降（标准）： | 1.1V @ 25mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 25mA |
| 电流 - 限制（最小）： | 40mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-SOIC-EP |
| 包装： | 带卷 (TR) |
Micrel, Inc.
Functional Description
MIC5280 is a high performance linear regulator which
accepts wide input operating range 4.5V to 120V. This
allows the use in harsh environments. The input can
surge from 0V to 120V within a millisecond. The first
stage bypass regulator isolates output from this input by
producing an intermediate head voltage which is a input-
to-post regulator. This post regulator gives the control to
regulate the required output voltage. The output voltage
is adjustable from 1.22V to 5V.
VIN Pin
V IN pin is the supply input pin. A 0.18μF or larger
capacitor with proper voltage rating is recommended for
filtering the input voltage variations and noise on the
input voltage. This capacitor should be close to the V IN
and GND pins.
CBYP Pin
The Bypass pin is the output of the Bypass regulator and
the input of the post regulator. By connecting a capacitor
from the C BYP pin-to-GND, a greater stability and a much
higher PSRR is achieved. A 10μF ceramic capacitor is
recommended and this significantly decreases V OUT
noise and perturbations due to line transients. When the
MIC5280 is enabled, the Bypass pin voltage is regulated
at 5.5V. To maintain 5.5V regulation and high PSRR, the
V IN must be no lower than 6.5V. For V IN less than 6.5V
while in dropout, the PSRR is reduced.
MIC5280
EN Pin
EN pin is a logic level enable input which turns MIC5280
on/off. Drive EN pin level high to turn the device ON and
drive EN pin low to keep the device in shutdown mode.
In shutdown mode the MIC5280 draws typically 20nA
from the input supply. EN pin can withstand 120V,
allowing EN always connected to input supply for
always-ON operation.
ADJ Pin
ADJ pin gives the flexibility to set the output voltage to
the requirement from 1.22V to 5V. Use a resistor divider
from output and connect to ADJ pin, internal reference is
typically 1.219V.
GND Pin
This GND pin provides the ground for all the electrical
connections. MIC5280 has exposed pad underneath the
package which should be connected to ground. If this
exposed pad is connected to wide ground plane it would
improve the thermal performance of MIC5280.
NC Pins
There are two NC pins on the package which are not
connected internally.
VOUT Pin
The V OUT pin is the regulated output of the post
regulator. When the MIC5280 is enabled, V OUT regulates
at a fixed voltage, when disabled, V OUT is high
impedance. A 2.2μF or larger ceramic capacitor must be
connected to V OUT pin-to-ground.
January 2009
9
M9999-012209-A
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相关代理商/技术参数 |
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| MIC5281-3.3YMM | 功能描述:线性稳压器 - 标准 120V/25mA Low Iq, High PSRR LDO RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MIC5281-3.3YMM TR | 功能描述:线性稳压器 - 标准 120V/25mA Low Iq, High PSRR LDO RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MIC5281-3.3YMME | 功能描述:线性稳压器 - 标准 120V/25mA Low Iq, High PSRR LDO RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MIC5281-3.3YMME TR | 功能描述:线性稳压器 - 标准 120V/25mA Low Iq, High PSRR LDO RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MIC5281-3.3YMME-TR | 功能描述:Linear Voltage Regulator IC Positive Fixed 1 Output 3.3V 25mA 8-MSOP-EP 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:有效 稳压器拓扑:正，固定式 电压 - 输出:3.3V 电流 - 输出:25mA 电压 - 跌落（典型值）:2V @ 25mA 稳压器数:1 电压 - 输入:6 V ~ 120 V 电流 - 限制（最小值）:30mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸焊盘 供应商器件封装:8-MSOP-EP 标准包装:1 |
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