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Details for LM3940IMP-3.3 by Texas Instruments
Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators
IC LDO REG 1A 5V SOT223-4
LM3940IMP-3.3 image

LM3940IMP-3.3 by Texas Instruments

IC LDO REG 1A 5V SOT223-4
Features
Built-in Protection against Excess Temperature
Excellent Load Regulation
Input Voltage Range: 4.5 V to 5.5 V
Output Voltage Specified over Temperature
Requires only One External Component
Short-Circuit Protected
Specified 1-A Output Current
Part Information
LM3940IMP-3.3 image
RoHS Compliant
Description
The LM3940 is a 1-A low-dropout regulator designed to provide 3.3 V from a 5-V supply. The LM3940 is ideally suited for systems which contain both 5-V and 3.3-V logic, with prime power provided from a 5-V bus. Because the LM3940 is a true low dropout regulator, it can hold its 3.3-V output in regulation with input voltages as low as 4.5 V. The TO-220 package of the LM3940 means that in most applications the full 1 A of load current can be delivered without using an additional heatsink. The surface mount DDPAK/TO-263 package uses minimum board space, and gives excellent power dissipation capability when soldered to a copper plane on the PC board.
Specifications
Output Type:
Fixed
Input Voltage Min:
0V
Input Voltage Max:
7.5V
Fixed Output Voltage Nom.:
3.3V
Adjustable Output Voltage Min:
-
Adjustable Output Voltage Max:
-
Output Current:
1A
Dropout Voltage Vdo:
500mV
LDO Regulator Case Style:
SOT-223
No. of Pins:
4Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
3.3V 1A LDO Voltage Regulators
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Output Voltage Nom.:
3.3V
Alternate Descriptions
LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) SOT-223 T/R Avnet America
LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) SOT-223 T/R Avnet Europe