MIC2940A-3.3BT Micrel Inc, MIC2940A-3.3BT Datasheet - Page 3

• Manufacturer Part Number: MIC2940A-3.3BT
• Description: IC REG LDO 1.25A 3.3V TO220-3
• Manufacturer: Micrel Inc

Specifications of MIC2940A-3.3BT

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 26V
• Voltage - Dropout (typical): 0.4V @ 1.25A
• Number Of Regulators: 1
• Current - Output: 1.25A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -

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
Electrical Characteristics
Limits in standard typeface are for T
Unless otherwise specified, V
has V
Micrel, Inc.
Symbol
V
∆V
∆T
∆V
V
V
I
I
I
∆V
∆P
e
July 2007
GND
GNDDO
LIMIT
n
O
O
IN
O
O
O
D
TO-220 (θ
TO-263 (θ
– V
SHUTDOWN
O
Parameter
Output Voltage Accuracy
Output Voltage Temperature
Coefficient
Line Regulation
Load Regulation
Dropout Voltage (Note 4)
Ground Pin Current (Note 5)
Ground Pin Current at Dropout
(Note 5)
Current Limit
Thermal Regulation
Output Noise Voltage
(10Hz to 100kHz)
I
L
JC
JC
= 100mA
0.6V.
) ........................................................2°C/W
) ........................................................2°C/W
IN
= V
OUT
J
= 25°C and limits in boldface apply over the full operating temperature range.
+ 1V, I
Condition
5 mA ≤ I
(Note 2)
I
I
I
I
I
I
I
I
I
I
I
V
I
V
(Note 7)
C
C
O
L
L
L
L
L
L
L
L
L
L
L
IN
OUT
L
L
L
= 5mA to 1.25A
= 5mA to 1A (Note 3)
= 5mA
= 250mA
= 1000mA
= 1250mA
= 5mA
= 250mA
= 1000mA
= 1250mA
= 5mA
= 10mA, (V
= 10µF
= 33µF
= 1000mA, C
= 0.5V less than designed V
= 0V (Note 6)
L
≤ 1A
OUT
+ 1V) ≤ V
L
= 10µF. The MIC2941A is programmed to output 5V and
3
Input Supply Voltage ...................................... –20V to +60V
Operating Input Supply Voltage .......................... 2V
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
†
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.
Across the full operating temperature, the minimum input voltage range
IN
≤ 26V
OUT
(V
OUT
3.3)
–2.5
Min
–1
–2
0.06
0.04
0.05
Typ
200
350
400
240
330
400
260
1.6
20
60
22
35
3
MIC2940A/2941A
Max
0.50
0.16
0.20
100
150
180
250
320
450
600
600
500
600
2.5
4.5
3.5
0.2
35
45
70
M9999-071307
1
2
6
†
ppm/°C
µV
µV
to 26V
Units
%/W
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
µA
µA
%
%
%
%
%
%
A
RMS
RMS