參數(shù)資料
型號(hào)： MIC4722
廠商： Micrel Semiconductor,Inc.
英文描述： 3mm x 3mm 2.7MHz 3A PWM Buck Regulator
中文描述： 采用3mm x 3mm 2.7兆赫3A PWM降壓調(diào)節(jié)
文件頁(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 581K
代理商： MIC4722
Micrel, Inc.
MIC4722
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
).......................................................+6V
Output Switch Voltage (V
SW
)..........................................+6V
Output Switch Current (
SW
).............................................11A
Logic Input Voltage (V
EN
) ..................................–0.3V to V
IN
Storage Temperature (T
s
).........................–60°C to +150°C
Junction Temperature................................................150°C
EDS Rating
(3)
..................................................................2kV
September 2007
3
M9999-090507-B
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
3x3 MLF-12 (
θ
JA
) ...............................................60°C/W
Electrical Characteristics
(4)
V
IN
= V
EN
= 3.6V; L = 0.47μH; C
OUT
= 4.7μF; T
A
= 25°C, unless noted.
Bold
values indicate –40°C< T
J
< +125°C.
Parameter
Condition
Min
2.7
2.45
Typ
Max
5.5
2.65
Units
Supply Voltage Range
V
Under-Voltage Lockout Threshold
(turn-on)
2.55
V
UVLO Hysteresis
100
mV
Quiescent Current
V
FB
= 0.9 * V
NOM
(not switching)
V
EN
= 0V
±
1% I
LOAD
= 100mA
±
2% (over temperature) I
LOAD
= 100mA
570
900
10
μA
Shutdown Current
2
μA
[Adjustable] Feedback Voltage
0.99
0.98
1
1.01
1.02
V
FB pin input current
1
nA
Current Limit
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
V
FB
≤
0.4V
I
SW
= 50mA V
FB
= 0.7V
FB_NOM
(High Side Switch)
3.5
5
A
Output Voltage Line Regulation
0.07
%
Output Voltage Load Regulation
0.2
%
Maximum Duty Cycle
100
%
Switch ON-Resistance
95
200
300
3.0
1.3
2
m
Oscillator Frequency
2.4
0.5
2.7
MHz
Enable Threshold
0.85
V
Enable Hysteresis
50
mV
Enable Input Current
0.1
μA
Power Good Range
±7
±10
200
%
Power Good Resistance
I
PGOOD
= 500μA
145
Over-Temperature Shutdown
150
°
C
Over-Temperature Hysteresis
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. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC4722_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3mm x 3mm 2.7MHz 3A PWM Buck Regulator
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MIC4722YML TR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3mm X 3mm 2.7MHz 3A PWM Buck Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MIC4722YML-TR 功能描述:Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 12-VFDFN Exposed Pad, 12-MLF? 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) 功能:降壓 輸出配置:正 拓?fù)?降壓 輸出類型:可調(diào)式 輸出數(shù):1 電壓 - 輸入（最小值）:2.7V 電壓 - 輸入（最大值）:5.5V 電壓 - 輸出（最小值/固定）:1V 電壓 - 輸出（最大值）:5.5V 電流 - 輸出:3A 頻率 - 開(kāi)關(guān):2.7MHz 同步整流器:無(wú) 工作溫度:-40°C ~ 125°C （TJ） 安裝類型:表面貼裝 封裝/外殼:12-VFDFN 裸焊盤，12-MLF? 供應(yīng)商器件封裝:12-MLF?（4x4） 標(biāo)準(zhǔn)包裝:1
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