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参数资料
| 型号： | MIC4723YMME TR |
| 厂商： | Micrel Inc |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 3A 10MSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 1V |
| 输入电压： | 3 V ~ 5.5 V |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) .......................................................+6V
Output Switch Voltage (V SW ) ..........................................+6V
Output Switch Current (I SW )............................................11A
Logic Input Voltage (V EN ) .................................. –0.3V to V IN
Storage Temperature (T s ) ......................... –60°C to +150°C
MIC4723
Operating Ratings (2)
Supply Voltage (V IN )..................................... +2.7V to +5.5V
Logic Input Voltage (V EN ) ....................................... 0V to V IN
Junction Temperature (T J ) ........................ –40°C to +125°C
Junction Thermal Resistance
3mm x 3mm MLF-12 ( θ JA ) .................................60°C/W
3mm x 3mm MLF-12 ( θ Jc ) .................................28°C/W
ePAD MSOP-10 ( θ JA ) ........................................76°C/W
ePAD MSOP-10 ( θ Jc ) ........................................28°C/W
Electrical Characteristics (4)
V IN = V EN = 3.6V; L = 1μH; C OUT = 4.7μF; T A = 25°C, unless noted. Bold values indicate –40°C< T J < +125°C.
Parameter
Supply Voltage Range
Under-Voltage Lockout
Condition
(turn-on)
MIC4723YML
MIC4723YMME
Min
2.7
3.0
2.45
Typ
2.55
Max
5.5
5.5
2.65
Units
V
V
V
Threshold
UVLO Hysteresis
100
mV
Quiescent Current
Shutdown Current
[Adjustable] Feedback
V FB = 0.9 * V NOM (not switching)
V EN = 0V
± 2% (over temperature) I LOAD = 100mA
0.98
570
2
900
10
1.02
μA
μA
V
Voltage
FB pin input current
1
nA
Current Limit in PWM Mode
Output Voltage Line
Regulation
Output Voltage Load
V FB = 0.9 * V NOM
V OUT > 2V; V IN = V OUT +500mV to 5.5V; I LOAD = 100mA
V OUT < 2V; V IN = 2.7V to 5.5V; I LOAD = 100mA
20mA < I LOAD < 3A
3.5
5
0.07
0.2
A
%
%
%
Regulation
Maximum Duty Cycle
V FB ≤ 0.4V
100
%
PWM Switch ON-
Resistance
Oscillator Frequency
Enable Threshold
Enable Hysteresis
Enable Input Current
Power Good Range
Power Good Resistance
Over-Temperature
I SW = 50mA; V FB = GND (High Side Switch)
I PGOOD = 500μA
1.8
0.5
95
2
0.85
50
0.1
±7
150
160
200
300
2.2
1.3
2.3
±10
250
m ?
m ?
MHz
V
mV
μA
%
?
° C
Shutdown
Over-Temperature
Hysteresis
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Specification for packaged product only.
June 2008
3
25
° C
M9999-060308-E
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