参数资料
型号: MIC5209-4.2YS TR
厂商: Micrel Inc
文件页数: 5/13页
文件大小: 0K
描述: IC REG LDO 4.2V .5A SOT-223
标准包装: 2,500
稳压器拓扑结构: 正,固定式
输出电压: 4.2V
输入电压: 最高 16V
电压 - 压降(标准): 0.35V @ 500mA
稳压器数量: 1
电流 - 输出: 500mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-261-4,TO-261AA
供应商设备封装: SOT-223
包装: 带卷 (TR)
其它名称: MIC5209-4.2YSTR
MIC5209-4.2YSTR-ND
MIC5209
ENABLE Input
Micrel, Inc.
V ENL
Enable Input Logic-Low Voltage
V EN = logic low (regulator shutdown)
0.4
0.18
V
V
I ENL
I ENH
Enable Input Current
V EN = logic high (regulator enabled)
V ENL ≤ 0.4V
V ENL ≤ 0.18V
V ENH = 2.0V
2.0
0.01
0.01
5
–1
–2
20
25
V
μA
μA
μA
μA
V ENH = 16V
30
50
μA
μA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation at any T A (ambient temperature) is calculated using: P D (max) = (T J (max) – T A ) ÷ θ JA . Exceeding the
maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See Table 1 and the
“Thermal Considerations” section for details.
4. Output voltage temperature coef? cient is the worst case voltage change divided by the total temperature range.
5. Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range
from 100μA to 500mA. Changes in output voltage due to heating effects are covered by the thermal regulation speci? cation.
6. Dropout voltage is de? ned as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differen-
tial.
7. Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load
current plus the ground pin current.
8. V EN is the voltage externally applied to devices with the EN (enable) input pin. [SO-8 (M) and TO-263-5 (U) packages only.]
9. Thermal regulation is the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line regulation ef-
fects. Speci? cations are for a 500mA load pulse at V IN = 16V for t = 10ms.
10. C BYP is an optional, external bypass capacitor connected to devices with a BYP (bypass) or ADJ (adjust) pin. [SO-8 (M) and TO-263-5 (U) packages
only].
June 2006
5
M9999-060906
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