参数资料
型号: MIC2250-2YD5 TR
厂商: Micrel Inc
文件页数: 3/14页
文件大小: 0K
描述: IC REG BOOST ADJ 2A SOT23-5
标准包装: 1
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2.5 V ~ 32 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 最高 2.5MHz
电流 - 输出: 2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
包装: 标准包装
供应商设备封装: SOT-23-5
其它名称: 576-3968-6
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) .........................................................6V
Switch Voltage (V SW )....................................... –0.3V to 34V
Enable Voltage (V EN )......................................... –0.3V to V IN
FB Voltage (V FB )...............................................................6V
Switch Current (I SW ) ......................................................3.5A
Ambient Storage Temperature (Ts) .......... –65°C to +150°C
ESD Rating (4) ................................................. ESD Sensitive
MIC2250
Operating Ratings (2)
Supply Voltage (V IN )......................................... 2.5V to 5.5V
Enable Voltage (V EN ).............................................. 0V to V IN
Junction Temperature (T J ) (3) ..................... –40°C to +125°C
Junction Thermal Resistance
2mm x 2mm MLF ? -8 ( θ JA )..................................90°C/W
Electrical Characteristics (5)
V IN = V EN = 3.6V; V DITH = 0V; V OUT = 15V; I OUT = 40mA; T A = 25°C, unless otherwise noted. Bold values indicate
–40°C ≤ T J ≤ +85°C.
Symbol
V IN
V ULVO
Parameter
Input Voltage Range
Under-voltage Lockout
Condition
V IN rising
Min
2.5
1.8
Typ
2
Max
5.5
2.4
Units
V
V
I Q
I SD
V FB
I FB
Quiescent Current
Shutdown Current
Feedback Voltage
Feedback Input Current
V FB = 1.5V (not switching)
V EN = 0V, Note 6
–40°C ≤ T J ≤ +85°C
V FB = 1.24V
1.20
1.19
52
0.1
1.24
10
80
1
1.277
1.29
μA
μA
V
V
nA
PFM Operation
Tss
Soft Start time
1
ms
t SW
D MAX
t DITH
Switch Off-time
Maximum Duty Cycle
Off-time Dithering
V IN = 3.6V
V DITH = 3.6V. Percentage from nominal.
75
1.6
87
±20
μs
%
%
Line Regulation
Load Regulation
3V ≤ V IN ≤ 5V
1mA ≤ I OUT ≤ 40mA
0.3
0.1
2
2
%
%
I SW
Switch Current Limit
Note 7
0.9
2
A
R ON
I SW
V EN ,
V DITH
I EN
T
Switch ON-resistance
Switch Leakage Current
Logic Input Thresholds
Enable Pin Current
Thermal Shutdown Threshold
I SW = 200mA
V EN = 0V, V SW = 10V
Turn ON
Turn OFF
V EN = V IN = 5.0V
1.5
0.5
0.01
0.1
130
1
5
0.4
2
?
μA
V
V
μA
°C
Hysteresis
15
°C
Notes:
1. Absolute maximum ratings indicate limits beyond which damage to the component may occur.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation is a function of the maximum junction temperature, T J(Max) , the junction-to-ambient thermal resistance, θ JA ,
and the ambient temperature, T A . The maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into
thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k ? in series with 100pF.
5. Specification for packaged product only.
6. I SD = I VIN .
7. Guaranteed by design.
April 2011
3
M9999-041811-B
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