MIC2920A-3.3WS by Microchip Technology

400mA LDO Fixed Voltage

Status: Active
Series: MIC2920A
RoHS: Compliant
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The MIC2920A family are "bulletproof" efficient voltage regulators with very low dropout voltage (typically 40mV at light loads and 370mV at 250mA), and very low quiescent current (140µA typical). The quiescent current of the MIC2920A increases only slightly in dropout, prolonging battery life. Key MIC2920A features include protection against reversed battery, fold-back current limiting, and automotive load-dump protection (60V positive transient).

The MIC2920 is available in several configurations. The MIC2920A-x.x devices are 3-pin fixed-voltage regulators available in 3.3V, 4.85V, 5V, and 12V outputs. The MIC29201 is a fixed regulator offering a logic-compatible shutdown input and an error flag output. This flag may also be used as a power-on reset signal. A logic-compatible shutdown input is provided on the adjustable MIC29202 that allows the regulator to be switched on and off. The MIC29204 8-pin SOIC adjustable regulator includes both shutdown and error flag pins and may be pin-strapped for 5V output or programmed from 1.24V to 26V using two external resistors.

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624 units
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High output voltage accuracy
Guaranteed 400mA output
Low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Input withstands -20V reverse battery and +60V positive transients
Error flag warns of output dropout
Logic-controlled electronic shutdown
Output programmable from 1.24V to 26V (MIC29202/MIC29204)
Available in TO-220, TO-220-5, and surface-mount TO-263-5, SOT-223, and SO-8 packages.


Product Type Single LDOs
# of Out 1
IOUT #1 400
IOUT #2 n/a
IOUT #3 n/a
IOUT #4 n/a
Rated IOUT 400
VIN Min (V) 2
VIN Max (V) 26
VOUT (V) 3.3, 4.8, 5.0, 12
Voltage Drop Typ (mV) 400
IGND Typ (µA) 140
Tol Typ % ±1
Noise (µV) rms 400
PSRR 1 kHz (dB) 70
Load Dump Yes
Rev Bat Yes
Pins | Packaging 3 | SOT-223
Temp Range -40C to +125C
Packing Media Tube (78)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.123
Shipping Weight (kg) 0.24359
Lead Count 3
Package Type SOT-223
Soldering Composition Matte Tin

Alternative Descriptions

MIC2920A Series 3.3 V Fixed Output 400 mA SMT LDO Voltage Regulator - SOT-223 | Future Electronics
SOT223-3/A°/A°/400MA LDO FIXED VOLTAGE | Holdelec
LDO Regulator Pos 3.3V 0.4A 3-Pin TO-263 | Avnet Asia
400mA LDO Fixed Volt age | Mouser Electronics
LDO, FIXED, 3.3V, 0.4A, SOT-223-3 | element14
400Ma Ldo Fixed Voltage Rohs Compliant: Yes |Microchip MIC2920A-3.3WS | Newark Electronics
Microchip LDO Voltage Regulator 3.3V 400mA SOT-223 | Distrelec

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Frequently Asked Questions

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Is the MIC2920A-3.3WS RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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