参数资料
| 型号： | MIC5232-2.5YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.5V 10MA 6MLF |
| 标准包装： | 5,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2.5V |
| 输入电压： | 2.7 V ~ 7 V |
| 电压 - 压降（标准）： | 0.1V @ 10mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 10mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-VQFN 裸露焊盘，6-MLF? |
| 供应商设备封装： | 6-MLF?（2x2） |
| 包装： | 带卷 (TR) |
Micrel, Inc.
Application Information
Input Capacitor
If there is more than 20cm of wire between IN and the
ac filter capacitor or if supplied from a battery, a 1μF
(or larger) capacitor should be placed from the IN
(supply input) to GND (ground).
Output Capacitors
The MIC5232 requires an output capacitor for stability.
A 0.47μF, or larger capacitor, is recommended
MIC5232
Because this device is CMOS and the ground current
is typically <15 μ A over the load range, the power
dissipation contributed by the ground current is < 1%
and can be ignored for this calculation.
P D = (4.3V – 3.3V) ? 10mA
P D = 0.01W
To determine the maximum ambient operating
temperature of the package, use the junction-to-
ambient thermal resistance of the device and the
following basic equation:
between VOUT (output) and GND to improve the
regulator’s transient response. A 0.47μF capacitor can
be used to reduce overshoot recovery time at the
P D (max) ?
T J (max) ? T A
? JA
125 ? C ? T A
expense of overshoot amplitude. The ESR (effective
series resistance) of this capacitor has no effect on
regulator stability, but low-ESR capacitors improve the
high frequency transient response. The value of this
capacitor may be increased without limit, but values
larger than 10μF tend to increase the settling time
after a step change in input voltage or output current.
Minimum Load Current
The MIC5232 does not require a minimum load for
proper operation. This allows the device to operate in
applications where very light output currents are
required for keep-alive purposes. This is important for
powering SRAM or Flash memory in low-power
modes for handheld devices.
Safe Operating Conditions
The MIC5232 incorporates current limit in the design.
There is also reverse circuit protection circuitry built
into the device. The maximum junction temperature
for the device is +125 ? C, and it is important that this is
not exceeded for any length of time.
Thermal Considerations
The MIC5232 is designed to provide 10mA of
continuous current in a very small package. Maximum
ambient operating temperature can be calculated
based on the output current and the voltage drop
across the part. Given that the input voltage is 4.3V,
the output voltage is 3.3V and the output current =
10mA.
The actual power dissipation of the regulator circuit
can be determined using the equation:
P D = (V IN – V OUT ) I OUT + V IN I GND
T J (max) = 125 ? C, the max. junction temperature of the
die, θ JA thermal resistance = 90 ? C/W for the 2mm x
2mm MLF ? package.
Substituting P D for P D (max), and solving for the
ambient operating temperature, will give the maximum
operating conditions for the regulator circuit. The
junction-to-ambient thermal resistance for the
minimum footprint is 90 ? C/W. The maximum power
dissipation must not be exceeded for proper
operation.
For example, when operating the MIC5232-3.3BML at
an input voltage of 4.3V and 10mA load with a
minimum footprint layout, the maximum ambient
operating temperature T A can be determined as
follows:
0 . 01 W ?
90 ? C / W
T A = 124°C
Therefore, a 3.3V application at 10mA of output
current can accept an ambient operating temperature
of 124°C in a 2mm x 2mm MLF ? -6 package. For a full
discussion of heat sinking and thermal effects on
voltage regulators, refer to the “Regulator Thermals”
section of Micrel’s “Designing with Low-Dropout
Voltage Regulators” handbook. This information can
be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
June 2012
8
M9999-061812-C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5232-3.3YD5 | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC5232-3.3YD5 TR | 功能描述:低压差稳压器 - LDO 10mA Ultra low Iq Single uCap 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 |
| MIC5232-3.3YD5-TR | 功能描述:Linear Voltage Regulator IC Positive Fixed 1 Output 3.3V 10mA TSOT-23-5 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:10mA 电压 - 跌落（典型值）:0.1V @ 10mA 稳压器数:1 电压 - 输入:最高 7V 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:SOT-23-5 细型，TSOT-23-5 供应商器件封装:TSOT-23-5 标准包装:1 |
| MIC5232-3.3YML | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:10mA Ultra-Low Quiescent Current μCap LDO |
| MIC5232-3.3YML TR | 功能描述:低压差稳压器 - LDO 10mA Ultra low Iq Single uCap 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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