LM2937IMP-3.3/NOPB National Semiconductor, LM2937IMP-3.3/NOPB Datasheet - Page 4
![IC REG 400MA SOT223-3](/photos/12/65/126577/pkg_mp04a_sml.jpg)
LM2937IMP-3.3/NOPB
Manufacturer Part Number
LM2937IMP-3.3/NOPB
Description
IC REG 400MA SOT223-3
Manufacturer
National Semiconductor
Type
Voltage Regulatorr
Specifications of LM2937IMP-3.3/NOPB
Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 26V
Voltage - Dropout (typical)
0.11V @ 50mA
Number Of Regulators
1
Current - Output
400mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Current, Output
500 mA
Current, Supply
10 mA
Package Type
SOT-223
Regulation, Line
9.9 mV
Regulation, Load
3.3 mV
Regulator Type
Positive Voltage Out
Resistance, Thermal, Junction To Case
3 °C/W
Temperature, Operating, Range
-40 to +125 °C
Voltage, Input
26 V
Voltage, Noise
99 μV
Voltage, Output
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Other names
LM2937IMP-3.3
LM2937IMP-3.3TR
LM2937IMP-3.3TR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2937IMP-3.3/NOPB
Manufacturer:
National Semiconductor
Quantity:
34 883
Part Number:
LM2937IMP-3.3/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
www.national.com
Electrical Characteristics
Note 5: The minimum input voltage required for proper biasing of these regulators is 4.75V. Below this level the outputs will fall out of regulation. This effect is not
the normal dropout characteristic where the output falls out of regulation due to the PNP pass transistor entering saturation. If a value for worst case effective input
to output dropout voltage is required in a specification, the values should be 2.37V maximum for the LM2937-2.5 and 1.6V maximum for the LM2937-3.3.
Typical Performance Characteristics
Quiescent Current vs
Output Current (2.5V)
Quiescent Current vs
Input Voltage (2.5V)
Temperature (2.5V)
Output Voltage vs
(Note 4) (Continued)
10011302
10011306
10011304
4
Quiescent Current vs
Output Current (3.3V)
Quiescent Current vs
Input Voltage (3.3V)
Temperature (3.3V)
Output Voltage vs
10011303
10011307
10011305