參數(shù)資料
型號(hào): MIC4723
廠商: Micrel Semiconductor,Inc.
英文描述: 3A 2MHz Integrated Switch Buck Regulator
中文描述: 第3A 2MHz的集成開關(guān)降壓穩(wěn)壓器
文件頁(yè)數(shù): 3/19頁(yè)
文件大?。?/td> 527K
代理商: MIC4723
Micrel, Inc.
MIC4723
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
May 2007
3
M9999-052307-A
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
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
Threshold
UVLO Hysteresis
Quiescent Current
Shutdown Current
[Adjustable] Feedback
Voltage
FB pin input current
Current Limit in PWM Mode
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Maximum Duty Cycle
Condition
(turn-on)
Min
2.7
2.45
Typ
2.55
Max
5.5
2.65
Units
V
V
V
FB
= 0.9 * V
NOM
(not switching)
V
EN
= 0V
±
2% (over temperature) I
LOAD
= 100mA
100
570
2
mV
μA
μA
V
900
10
1.02
0.98
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
1
5
nA
A
%
%
%
3.5
0.07
0.2
V
FB
0.4V
I
SW
= 50mA; V
FB
= GND (High Side Switch)
100
%
PWM Switch ON-
Resistance
Oscillator Frequency
Enable Threshold
Enable Hysteresis
Enable Input Current
Power Good Range
Power Good Resistance
Over-Temperature
Shutdown
Over-Temperature
Hysteresis
95
200
300
2.2
1.3
2.3
±10
250
m
m
MHz
V
mV
μA
%
I
PGOOD
= 500μA
1.8
0.5
2
0.85
50
0.1
±7
150
160
°
C
25
°
C
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.
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