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.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LM3480 | SOT-23 (3) | 2.92 mm × 1.30 mm |
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Changes from G Revision (February 2015) to H Revision
Changes from F Revision (December 2014) to G Revision
Changes from E Revision (March 2013) to F Revision
Changes from D Revision (March 2013) to E Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
OUT | 1 | O | Output voltage |
IN | 2 | I | Input voltage supply |
GND | 3 | — | Common ground |
MIN | MAX | UNIT | |
---|---|---|---|
Input voltage (IN to GND) | –0.3 | 35 | V |
Power dissipation(3) | Internally Limited | ||
Junction temperature(3) | –40 | 150 | °C |
Storage temperature, Tstg | −65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±500 |
MIN | MAX | UNIT | |
---|---|---|---|
Maximum input voltage (IN to GND) | 0 | 30 | V |
Junction temperature (TJ) | –40 | 125 | °C |
THERMAL METRIC(1) | LM3480 | UNIT | |
---|---|---|---|
SOT-23 (DBZ) | |||
3 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 269.6 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 141.1 | |
RθJB | Junction-to-board thermal resistance | 63.1 | |
ψJT | Junction-to-top characterization parameter | 24.2 | |
ψJB | Junction-to-board characterization parameter | 62.1 |
PARAMETER | TEST CONDITIONS | VNOM = 3.3 V | VNOM = 5 V | UNIT | |||||
---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | ||||
VOUT | Output voltage | VIN = VNOM + 1.5 V 1 mA ≤ IOUT ≤ 100 mA |
3.17 | 3.3 | 3.43 | 4.8 | 5 | 5.2 | V |
VIN = VNOM + 1.5 V 1 mA ≤ IOUT ≤ 100 mA −40°C ≤ TJ ≤ 125°C |
3.14 | 3.46 | 4.75 | 5.25 | |||||
ΔVOUT | Line regulation | VNOM + 1.5 V ≤ VIN ≤ 30 V IOUT = 1 mA |
10 | 12 | mV | ||||
VNOM + 1.5 V ≤ VIN ≤ 30 V IOUT = 1 mA −40°C ≤ TJ ≤ 125°C |
25 | 25 | |||||||
ΔVOUT | Load regulation | VIN = VNOM + 1.5 V 10 mA ≤ IOUT ≤ 100 mA |
20 | 20 | mV | ||||
VIN = VNOM + 1.5 V 10 mA ≤ IOUT ≤ 100 m −40°C ≤ TJ ≤ 125°C |
40 | 40 | |||||||
IGND | Ground pin current | VNOM + 1.5 V ≤ VIN ≤ 30 V No Load |
2 | 2 | mA | ||||
VNOM + 1.5 V ≤ VIN ≤ 30 V No Load, −40°C ≤ TJ ≤ 125°C |
4 | 4 | |||||||
VIN - VOUT |
Dropoutvoltage | IOUT = 10 mA | 0.7 | 0.9 | 0.7 | 0.9 | V | ||
IOUT = 10 mA −40°C ≤ TJ ≤ 125°C |
1 | 1 | |||||||
IOUT = 100 mA | 0.9 | 1.1 | 0.9 | 1.1 | V | ||||
IOUT = 100 mA −40°C ≤ TJ ≤ 125°C |
1.2 | 1.2 | |||||||
en | Output noise voltage | VIN = 10 V Bandwidth: 10 Hz to 100 kHz |
100 | 150 | µVrms |
PARAMETER | TEST CONDITIONS | VNOM = 12 V | VNOM = 15 V | UNIT | |||||
---|---|---|---|---|---|---|---|---|---|
MIN | TYP | MAX | MIN | TYP | MAX | ||||
VOUT | Output voltage | VIN = VNOM + 1.5 V 1 mA ≤ IOUT ≤ 100 mA |
11.52 | 12 | 12.48 | 14.4 | 15 | 15.6 | V |
VIN = VNOM + 1.5 V 1 mA ≤ IOUT ≤ 100 mA −40°C ≤ TJ ≤ 125°C |
11.4 | 12.6 | 14.25 | 15.75 | |||||
ΔVOUT | Line regulation | VNOM + 1.5 V ≤ VIN ≤ 30 V IOUT = 1 mA |
14 | 16 | mV | ||||
VNOM + 1.5 V ≤ VIN ≤ 30 V IOUT = 1 mA −40°C ≤ TJ ≤ 125°C |
40 | 40 | |||||||
ΔVOUT | Load regulation | VIN = VNOM + 1.5 V 10 mA ≤ IOUT ≤ 100 mA |
36 | 45 | mV | ||||
VIN = VNOM + 1.5 V 10 mA ≤ IOUT ≤ 100 mA −40°C ≤ TJ ≤ 125°C |
60 | 75 | |||||||
IGND | Ground pin current | VNOM + 1.5 V ≤ VIN ≤ 30 V No Load |
2 | 2 | mA | ||||
VNOM + 1.5 V ≤ VIN ≤ 30 V No Load, −40°C ≤ TJ ≤ 125°C |
4 | 4 | |||||||
VIN - VOUT |
Dropout voltage | IOUT = 10 mA | 0.7 | 0.9 | 0.7 | 0.9 | V | ||
IOUT = 10 mA, −40°C ≤ TJ ≤ 125°C |
1 | 1 | |||||||
IOUT = 100 mA | 0.9 | 1.1 | 0.9 | 1.1 | V | ||||
IOUT = 100 mA , −40°C ≤ TJ ≤ 125°C |
1.2 | 1.2 | |||||||
en | Output noise voltage | VIN = 10 V Bandwidth: 10 Hz to 100 kHz |
360 | 450 | µVrms |