MIC2940A-5.0BT 데이터 시트보기 (PDF) - Micrel
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MIC2940A-5.0BT Datasheet PDF : 11 Pages
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Micrel, Inc.
MIC2940A/2941A
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
contact your local Micrel representative/distributor for
availability and specifications
Power Dissipation (Note 1) .......................Internally Limited
Lead Temperature (soldering, 5 sec.)........................ 260°C
Storage Temperature ................................–65°C to +150°C
Operating Junction Temperature ..............–40°C to +125°C
TO-220 (θJC) ........................................................2°C/W
TO-263 (θJC) ........................................................2°C/W
Input Supply Voltage ...................................... –20V to +60V
Operating Input Supply Voltage .......................... 2V† to 26V
Adjust Input Voltage (Notes 9 and 10) ......... –1.5V to +26V
Shutdown Input Voltage ................................ –0.3V to +30V
Error Comparator Output Voltage ................. –0.3V to +30V
† Across the full operating temperature, the minimum input voltage range
for full output current is 4.3V to 26V. Output will remain in-regulation at
lower output voltages and low current loads down to an input of 2V at
25°C.
Electrical Characteristics
Limits in standard typeface are for TJ = 25°C and limits in boldface apply over the full operating temperature range.
Unless otherwise specified, VIN = VOUT + 1V, IL = 1000mA, CL = 10µF. The MIC2941A is programmed to output 5V and
has VSHUTDOWN 0.6V.
Symbol Parameter
Condition
Min Typ Max Units
VO
Output Voltage Accuracy
∆VO
Output Voltage Temperature
∆T
Coefficient
∆VO
Line Regulation
VO
Load Regulation
VIN – VO Dropout Voltage (Note 4)
IGND
Ground Pin Current (Note 5)
5 mA ≤ IL ≤ 1A
(Note 2)
IO = 10mA, (VOUT + 1V) ≤ VIN ≤ 26V
IL = 5mA to 1.25A
IL = 5mA to 1A (Note 3)
IL = 5mA
IL = 250mA
IL = 1000mA
IL = 1250mA
IL = 5mA
–1
–2
–2.5
20
1
%
2
%
2.5
%
100 ppm/°C
0.06 0.50
%
0.04 0.16
%
0.20
%
60
150
mV
180
mV
200
250
mV
320
mV
350
450
mV
600
mV
400
600
mV
240
500
µA
IGNDDO
ILIMIT
∆VO
∆PD
en
Ground Pin Current at Dropout
(Note 5)
Current Limit
Thermal Regulation
IL = 250mA
IL = 1000mA
IL = 1250mA
VIN = 0.5V less than designed VOUT (VOUT 3.3)
IL = 5mA
VOUT = 0V (Note 6)
(Note 7)
Output Noise Voltage
(10Hz to 100kHz)
IL = 100mA
CL = 10µF
CL = 33µF
3
4.5
mA
6
mA
22
35
mA
45
mA
35
70
mA
330
600
µA
1.6
3.5
0.05
0.2
A
%/W
400
µVRMS
260
µVRMS
July 2007
3
M9999-071307
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