參數(shù)資料
型號: MIC2219
廠商: Micrel Semiconductor,Inc.
元件分類: 線性穩(wěn)壓
英文描述: Dynamically Adjustable Dual uCap LDO
中文描述: 動態(tài)可調(diào)LDO的雙開普
文件頁數(shù): 5/10頁
文件大?。?/td> 219K
代理商: MIC2219
MIC2219
Micrel, Inc.
M9999-042105
4
April 2005
Electrical Characteristics (Note 4)
V
IN = VOUT +1.0V for higher output of the regulator pair; COUT = 1.0F, IOUT = 100A; TJ = 25°C, bold values indicate
–40°C ≤ TJ ≤ +125°C; unless noted.
Parameter
Conditions
Min
Typ
Max
Units
Output Voltage Accuracy
Variation from nominal V
OUT
–1.0
+1.0
%
–2.0
+2.0
%
Output Voltage Temp. Coefficient
40
ppm/C
Line Regulation; Note 5
V
IN = VOUT +1V to 5.5V
–0.3
0.02
0.3
%/V
–0.6
0.6
Load Regulation
I
OUT = 100A to 150mA (regulator 1 and 2)
0.2
1.0
%
I
OUT = 100A to 300mA (regulator 2)
1.5
%
Dropout Voltage; Note 6
I
OUT = 150mA (regulator 1 and 2)
120
190
mV
250
mV
I
OUT = 300mA (regulator 2)
240
340
mV
420
Ground Pin Current
I
OUT1 = IOUT2 = 0A48
65
A
80
A
I
OUT1 = 150mA & IOUT2 = 300mA
60
A
Ground Pin Current in Shutdown
V
EN ≤ 0.4V
1.0
A
Ripple Rejection
f = 1kHz; C
OUT = 1.0F ceramic; CBYP = 10nF
60
dB
f = 1kHz; C
OUT = 1.0F ceramic; CBYP = 10nF
40
dB
Current Limit
V
OUT = 0V (regulator 1)
150
280
460
mA
V
OUT = 0V (regulator 2)
300
450
700
mA
Output Voltage Noise
C
OUT =1F, CBYP =0.01F, 10Hz to 100kHz
30
Vrms
Feedback Inputs
FB1
Resistance value, output1, V
OUT to FB1
830
k
Resistance value, output1, FB1 to GND
580
k
FB2
Resistance value, output2, V
OUT to FB2
972
k
Resistance value, output2, FB2 to GND
580
k
Enable Input
Enable Input Voltage
Logic low (regulator shutdown)
0.6
V
Logic high (regulator enabled)
1.8
V
Enable Input Current
V
IL < 0.6V (regulator shutdown)
–1
0.01
+1
A
V
IH > 1.8V (regulator enabled)
–1
0.01
+1
A
Note 1.
Exceeding maximum rating may damage the device.
Note 2.
The device is not guaranteed to work outside its operating rating.
Note 3.
The maximum allowable power dissipation of any T
A (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum
allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
Note 4.
Specification for packaged product only.
Note 5.
Minimum input for line regulation test is set to V
OUT + 1V relative to the highest output voltage.
Absolute Maximum Rating (Note 1)
Supply Input Voltage (V
IN) .................................... 0V to 7V
Enable Input Voltage (V
EN) ................................... 0V to 7V
Power Dissipation (P
D) ............... Internally Limited, Note 3
Junction Temperature .............................. –40°C to +125°C
Storage Temperature (T
S) ......................... –65°C to 150°C
Lead Temperature (soldering, 5 sec.) ....................... 260°C
Operating Ratings (Note 2)
Supply Input Voltage (V
IN) ............................ 2.25V to 5.5V
Enable Input Voltage (V
EN) .................................. 0V to Vin
Junction Temperature (T
J) ....................... –40°C to +125°C
Package Thermal Resistance
MLF-10 (θJA) .................................................... 60°C/W
MLF-10 (θJC) 1" square 2 oz. copper ................ 2°C/W
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