参数资料
型号: MIC2225-GMYMT TR
厂商: Micrel Inc
文件页数: 4/15页
文件大小: 354K
描述: IC REG DL BUCK/LINEAR 10TMLF
标准包装: 1
拓扑: 降压(降压)(1),线性(LDO)(1)
功能: 任何功能
输出数: 2
频率 - 开关: 2MHz
电压/电流 - 输出 1: 1.8V,600mA
电压/电流 - 输出 2: 2.8V,300mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-UFDFN,10-TMLF?
供应商设备封装: 10-TMLF?(2x2)
包装: 标准包装
产品目录页面: 1092 (CN2011-ZH PDF)
其它名称: 576-3105-6
Micrel, Inc.
MIC2225
 
 
February 2008 
4
M9999-022008-D
 
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
).......................................................+6V
Output Switch Voltage (V
SW
)..........................................+6V
Output Switch Current (I
SW
)..............................................1A
Logic Input Voltage (V
EN
,V
LOWQ
)........................0.3V to V
IN
 
Storage Temperature (T
s
).........................60癈 to +150癈
ESD Rating
(3)
..................................................................2kV
Operating Ratings
(2)
Supply Voltage (V
IN
).....................................+2.7V to +5.5V
Logic Input Voltage (V
EN
,V
LOWQ
)........................0.3V to V
IN
 
Junction Temperature (T
J
)........................40癈 to +125癈
Junction Thermal Resistance
   Thin MLF-10L (?/DIV>
JA
)............................................90癈/W
 
 
 
 
Electrical Characteristics DC/DC
(4)
 
V
EN
 = V
IN
 = 3.6V, L = 2.2礖; C
OUTDC/DC
 = 2.2礔, C
LDO
 = 2.2礔; I
OUTDC/DC
 = 100mA; C
BIAS
 = 0.1礔
V
ENLDO
 = 0V; T
J
 = 25癈, bold values indicate 40癈 <
 T
J
 <
 +125癈; unless noted.
Parameter
Condition
Min    Typ    Max    Units
UVLO Threshold
Rising input voltage during turn-on
2.45   2.55    2.65     V 
UVLO Hysteresis
 
     70          mV
Switcher Ground Pin Current    ENLDO = 0V, V
FB
 = GND ; I
L
=0mA
     850    1100    礎
LDO Ground Pin Current
EN = 0V
     67    110     礎
Ground Pin Current in
Shutdown
EN +ENLDO = 0V
     0.2     5     礎
Over-temperature Shutdown    
     160     
Over-temperature Shutdown
Hysteresis
 
     23     
Logic Low
 
     0.2     V
Enable Input Voltage
Logic High
1.0      
 
V
V
IL
 <
 0.2V
     0.1     1     礎
Enable Input Current
V
IH
 >
 1.0V
     0.1
1
Turn-on Time
I
LOAD
 = 5mA
     50     
Fixed Output Voltages
Nominal V
OUT
 tolerance Io=50mA
2 
3 
     +2 
+3 
% 
%
Current Limit in PWM Mode     V
FB
 = 0.9*V
NOM
 
0.675   0.95     
A
Output Voltage Line Regulation   V
IN
 = 2.7V to 5.5V, I
LOAD
= 100mA
     0.12     1
%
%
Output Voltage Load Regulation 20mA < I
LOAD
 < 300mA
     0.2    1.5     %
Maximum Duty Cycle
V
FB
 d 0.4V
100     
 
%
PWM Switch ON-Resistance    I
SW
 = 150mA; V
FB
 = 0.7V
FB_NOM
 
I
SW
 = -150mA; V
FB
 = 1.1V
FB_NOM
 
     0.4
0.4
 
&
&
Oscillator Frequency
 
1.8     2     2.2    MHz 
 
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