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

1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion | Texas Instruments
IC: voltage regulator | Transfer Multisort Elektronik
LDO U-Reg +3,3V 1A D²Pak | Schukat Electronic
LM3940IS-3.3/NOPB, LDO Volt Regulators | RS
Ic, V Reg, Linear, 3.3V | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM3940IS-3.3/NOPB?

Additional datasheets, footprints and schematics for LM3940IS-3.3/NOPB are listed on our Part Details page. You can also find images and similar parts to LM3940IS-3.3/NOPB on this page.

What pricing and inventory information can I view?

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What category does LM3940IS-3.3/NOPB fall under?

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

Can I view similar or alternative parts?

You can view similar parts to LM3940IS-3.3/NOPB when available in the Voltage Regulators range under the specifications section at the bottom of the details page.

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Is the LM3940IS-3.3/NOPB RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for LM3940IS-3.3/NOPB have stock available?

Authorised distributors including Texas Instruments, Transfer Multisort Elektronik, Schukat Electronic, RS and Chip One Stop have stock available or on a lead time for LM3940IS-3.3/NOPB.

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