參數(shù)資料
型號： MIC5319YML
廠商： MICREL INC
元件分類： 基準電壓源/電流源
英文描述： 500mA ?Cap Ultra-Low Dropout, High PSRR LDO Regulator
中文描述： 1.25 V-5.5 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.4 V DROPOUT, DSO6
封裝： 2 X 2 MM, LEAD FREE, MLF-6
文件頁數(shù)： 3/10頁
文件大小： 319K
代理商： MIC5319YML
October 2004
3
M9999-100604
MIC5319
Micrel
Electrical Characteristics
(5)
V
IN
= V
OUT
+1.0V; C
OUT
= 2.2
μ
F, I
OUT
= 100
μ
A; T
J
= 25
°
C, bold values indicate –40
°
C to + 125
°
C; unless noted.
Parameter
Condition
Min
Typ
Max
Units
Output Voltage Accuracy
Variation from nominal V
OUT
–1.0
+1.0
%
Variation from nominal V
OUT
, I
OUT
= 100
μ
A to 500mA
–2.0
+2.0
%
Feedback Voltage
1.2375
1.25
1.2625
V
(ADJ option)
1.225
1.25
1.275
V
Line Regulation
V
IN
= V
OUT
+1V to 5.5V
0.04
0.3
%/V
Load Regulation
(6)
I
OUT
= 100
μ
A to 500mA
0.1
0.5
%
Dropout Voltage
(7)(8)
I
OUT
= 50mA
20
40
mV
I
OUT
= 500mA
200
400
mV
Ground Pin Current
(9)
I
OUT
= 0 to 500mA
90
150
μ
A
Ground Pin Current in Shutdown
V
EN
0.2V
0.5
μ
A
Ripple Rejection
f = up to 1kHz; C
OUT
= 2.2
μ
F ceramic; C
BYP
= 0.1
μ
F
70
dB
f = 10kHz; C
OUT
= 2.2
μ
F ceramic; C
BYP
= 0.1
μ
F
60
dB
Current Limit
V
OUT
= 0V
600
700
mA
Output Voltage Noise
C
OUT
=2.2
μ
F, C
BYP
= 0.1
μ
F, 10Hz to 100kHz
40
μ
Vrms
Turn-On Time
C
OUT
= 2.2
μ
F; C
BYP
= 0.01
μ
F
40
100
μ
s
Enable Input
Enable Input Voltage
Logic Low (Regulator Shutdown)
0.2
V
Logic High (Regulator Enabled)
1.0
V
Enable Input Current
V
IL
0.2V (Regulator Shutdown)
0.01
1
μ
A
V
IH
1.0V (Regulator Enabled)
0.01
1
μ
A
Notes:
1.
Exceeding maximum ratings may damage the device.
2.
The device is not guaranteed to work outside its operating rating.
3.
The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D
(max) = (T
J
(max) - T
A
) /
θ
JA
. Exceeding the maximum allowable
power dissipation will result in excessive die temperature, and the regulator may go into thermal shutdown.
4.
Devices are ESD sensitive. Handling precautions recommended. Human Body Model.
5.
Specification for packaged product only.
6.
Regulation is measured at constant junction temperature using low duty cycle pulse testing.
7.
Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal V
OUT
. For outputs below 2.5V,
dropout voltage spec does not apply, as part is limited by minimum V
IN
spec of 2.5V. There may be some typical dropout degradation at V
OUT
<3V.
For ADJ option, V
OUT
= 3V for dropout specification.
Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
8.
9.
Absolute Maximum Ratings
(1)
Supply Input Voltage (V
IN
) .................................... 0V to 6V
Enable Input Voltage (V
EN
) ................................... 0V to 6V
Power Dissipation (P
D
) ........................ Internally Limited
(3)
Junction Temperature(T
J
) ........................–40
°
C to +125
°
C
Storage Temperature (T
S
) ......................... –65
°
C to 150
°
C
Lead Temperature (soldering, 5 sec.) ....................... 260
°
C
ESD
(4)..............................................................................................
3kV
Operating Ratings
(2)
Supply Input Voltage (V
IN
) .............................. 2.5V to 5.5V
Enable Input Voltage (V
EN
) .................................. 0V to V
IN
Junction Temperature (T
J
) ....................... –40
°
C to +125
°
C
Package Thermal Resistance
MLF (
θ
JA
).........................................................93
°
C/W
TSOT-23 (
θ
JA
)...................................................235
°
C/W
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