參數(shù)資料
型號: MIC2183BM
廠商: MICREL INC
元件分類: 穩(wěn)壓器
英文描述: CHOKE COIL 220UH 840MA SMD
中文描述: SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO16
封裝: SOP-16
文件頁數(shù): 4/12頁
文件大小: 98K
代理商: MIC2183BM
MIC2183
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
IN
A, V
IN
P) .........................................15V
Digital Supply Voltage (V
DD
) ...........................................7V
Comp Pin Voltage (V
COMP
)............................
0.3V to +3V
Feedback Pin Voltage (V
FB
) ..........................
0.3V to +3V
Enable Pin Voltage (V
EN/UVLO
) .....................
0.3V to 15V
Current Sense Voltage (V
CSH
V
CSL
)...............
0.3V to 1V
Sync Pin Voltage (V
SYNC
) ................................
0.3V to 7V
Freq/2 Pin Voltage (V
FREQ/2
) ............................ -0.3V to 7V
Power Dissipation (P
D
)
16 lead SOIC.................................400mW @ T
A
= 85
°
C
16 lead QSOP ....................................... 245mW @ 85
°
C
Ambient Storage Temp ............................
65
°
C to +150
°
C
ESD Rating,
Note 3
Micrel
MIC2183
4
December 10, 2001
Electrical Characteristics
V
IN
A = V
IN
P = V
CSH
= 5V, V
OUT
= 3.3V, V
EN/UVLO
= 5V, V
FREQ/2
= 0V, T
J
= 25
o
C, unless otherwise specified.
Bold
values indicate
40
o
C < T
J
< +125
o
C.
Parameter
Condition
Min
Typ
Max
Units
Regulation
Feedback Voltage Reference
(
±
1%)
(
±
2%)
1.233
1.22
1.245
1.257
1.27
V
V
Feedback Bias Current
50
nA
Output Voltage Line Regulation
5V
V
IN
12V
0mV < (V
CSH
V
CSL
) < 75mV
5V
V
IN
A
12V, 0mV < (V
CSH
V
CSL
) < 75mV (
±
3%)
0.04
% / V
Output Voltage Load Regulation
0.9
%
Output Voltage Total Regulation
1.208
1.282
V
Input & V
DD
Supply
V
IN
A Input Current
V
IN
P Input Current,
Note 4
Shutdown Quiescent Current
0.7
mA
(Excluding external MOSFET gate current)
1.0
mA
V
EN/UVLO
= 0V; (I
VINA
+ I
VINP
)
I
L
= 0
I
L
= 0 to 1mA
V
DD
upper threshold (turn on threshold)
0.5
5
μ
A
Digital Supply Voltage (V
DD
)
Digital Supply load regulation
2.82
3.0
3.18
V
0.03
V
Undervoltage Lockout
2.75
V
UVLO Hysteresis
100
mV
Enable/UVLO
Enable Input Threshold
0.6
0.9
1.2
V
UVLO Threshold
(turn-on threshold)
1.4
1.5
1.6
V
UVLO Hysteresis
140
mV
Enable Input Current
V
EN/UVLO
= 5V
0.2
5
μ
A
Soft Start
Soft Start Current
5
μ
A
Current Limit
Current Limit Threshold Voltage
Voltage on CSH-CSL to trip current limit
100
mV
Error Amplifier
Error Amplifier Gain
20
V/V
Current Amplifier
Current Amplifier Gain
3.0
V/V
Operating Ratings
(Note 2)
Supply Voltage (V
IN
A, V
IN
P) ........................ +2.9V to +14V
Ambient Operating Temperature.........
40
°
C
T
A
+85
°
C
Junction Temperature .......................
40
°
C
T
J
+125
°
C
Output Voltage Range...................................... 1.3V to 12V
PackageThermal Resistance
θ
JA
16-lead SOP ...............................................100
°
C/W
θ
JA
16-lead QSOP.............................................163
°
C/W
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