参数资料
型号: MIC4724YMME
厂商: Micrel Inc
文件页数: 3/19页
文件大小: 0K
描述: IC REG BUCK ADJ 3A 10MSOP
标准包装: 100
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 ~ 6 V
频率 - 开关: 2MHz
电流 - 输出: 3A
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: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)裸露焊盘
包装: 管件
供应商设备封装: 10-MSOP 裸露焊盘
产品目录页面: 1093 (CN2011-ZH PDF)
其它名称: 576-3120-5
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) ....................................................+6.5V
Output Switch Voltage (V SW ) .......................................+6.5V
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
MIC4724
Operating Ratings (2)
Supply Voltage (V IN )..................................... +3.0V to +6.0V
Logic Input Voltage (V EN ) ....................................... 0V to V IN
Junction Temperature (T J ) ........................ –40°C to +125°C
Junction Thermal Resistance
( θ JA ) ...................................................................63°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)
Min
3.0
2.45
Typ
2.55
Max
6.0
2.65
Units
V
V
Threshold
UVLO Hysteresis
100
mV
Quiescent Current
Shutdown Current
[Adjustable] Feedback
Voltage
FB pin input current
V FB = 0.9 * V NOM (not switching)
V EN = 0V
± 2% (over temperature) I LOAD = 100mA
0.98
570
2
1
900
15
1.02
μA
μA
V
nA
Current Limit in PWM Mode
V FB = 0.9 * V NOM
3.5
5
A
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Maximum Duty Cycle
PWM Switch ON-
Resistance
Oscillator Frequency
V OUT > 2V; V IN = V OUT +500mV to 6.0V; I LOAD = 100mA
V OUT < 2V; V IN = 2.7V to 6.0V; I LOAD = 100mA
20mA < I LOAD < 3A
V FB ≤ 0.4V
I SW = 50mA; V FB = GND (High Side Switch)
100
0.07
0.2
110
2
%
%
%
%
m ?
m ?
MHz
Enable Threshold
Enable Hysteresis
Enable Input Current
Power Good Range
Power Good Resistance
Over-Temperature
Shutdown
Over-Temperature
Hysteresis
I PGOOD = 500μA
0.5
0.85
50
0.1
±7
150
160
25
1.3
2.3
±10
300
V
mV
μA
%
?
° C
° C
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. It is recommended that a transient input voltage may not exceed operating rating of the device for more that 5% of the time and in no case should the
transient voltage exceed the absolute maximum rating of the device.
3. Specification for packaged product only.
June 2008
3
M9999-062408-A
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