LM3940IS-3.3/NOPB Power Management ICs - PMIC by Texas Instruments

IC V REG LINEAR 3.3V

Status: Unknown
Series: 3.3V 1A LDO Voltage Regulators
RoHS: Unknown
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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.
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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 TO-263
No. of Pins 3Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range 3.3V 1A LDO Voltage Regulators
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +125°C
Output Voltage Nom. 3.3V
Primary Input Voltage 5V
Supply Voltage Max 7.5V
Supply Voltage Min 4.5V
Termination Type Surface Mount Device
Voltage Regulator Type LDO Fixed Positive

Alternative Descriptions

1A LOW DROPOUT REGULATOR FOR 5V TO 3.3V ROHS COMPLIANT: YES | Newark Electronics
IC, V REG, LINEAR, 3.3V | element14
1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion | Texas Instruments
LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) TO-263 Rail | Avnet America
LDO U-Reg +3,3V 1A D²Pak | Schukat Electronic

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The LM3940IS-3.3/NOPB is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators.

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This part has not been flagged as RoHS Compliant.

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