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LM3480
  • LM3480
  • LM3480
  • LM3480

LM3480

ACTIVE

100-mA, 30-V, low-dropout voltage regulator

Texas Instruments LM3480 Product Info

1 April 2026 8

Parameters

Rating

Catalog

Vin (max) (V)

30

Vin (min) (V)

4

Iout (max) (A)

0.1

Output options

Fixed Output

Vout (max) (V)

15

Vout (min) (V)

3.3

Fixed output options (V)

3.3, 5, 12, 15

Noise (µVrms)

100

PSRR at 100 KHz (dB)

45

Iq (typ) (mA)

2

Thermal resistance θJA (°C/W)

270

Load capacitance (min) (µF)

0.1

Regulated outputs (#)

1

Accuracy (%)

3.5

Dropout voltage (Vdo) (typ) (mV)

900

Operating temperature range (°C)

-40 to 125

Package

SOT-23 (DBZ)-3-6.9204 mm² 2.92 x 2.37

Features

  • Input Voltage Range: up to 30 V
  • 3.3-V, 5-V, 12-V, and 15-V Versions Available
  • Packaged in the Tiny 3-Lead SOT-23 Package
  • 30-V Maximum Input for Operation
  • 1.2-V Ensured Maximum Dropout Over Full Load
    and Temperature Ranges
  • 100-mA Ensured Minimum Load Current
  • ±5% Ensured Output Voltage Tolerance Over Full
    Load and Temperature Ranges
  • −40 to +125°C Junction Temperature Range for
    Operation
  • Input Voltage Range: up to 30 V
  • 3.3-V, 5-V, 12-V, and 15-V Versions Available
  • Packaged in the Tiny 3-Lead SOT-23 Package
  • 30-V Maximum Input for Operation
  • 1.2-V Ensured Maximum Dropout Over Full Load
    and Temperature Ranges
  • 100-mA Ensured Minimum Load Current
  • ±5% Ensured Output Voltage Tolerance Over Full
    Load and Temperature Ranges
  • −40 to +125°C Junction Temperature Range for
    Operation

Description

The LM3480 is an integrated linear voltage regulator. It features operation from an input as high as 30 V and an ensured maximum dropout of 1.2 V at the full 100-mA load. Standard packaging for the LM3480 is the 3-lead SOT-23 package.

The 5-V, 12-V, and 15-V members of the LM3480 series are intended as tiny alternatives to industry standard LM78Lxx series and similar devices. The 1.2-V quasi-low dropout of LM3480 series devices makes them a nice fit in many applications where the 2-V to 2.5-V dropout of LM78Lxx series devices precludes their (LM78Lxx series devices) use.

The LM3480 series also features a 3.3-V member. The SOT-23 packaging and quasi-low dropout features of the LM3480 series converge in this device to provide a very nice, very tiny, 3.3-V, 100-mA bias supply that regulates directly off the system 5-V ±5% power supply.

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