MIC2920A

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.

产品特性
  • 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.
技术参数
Parameter Name Value Value
Product Type Single LDOs Single LDOs
# of Out 1 1
IOUT #1
IOUT #2
IOUT #3
IOUT #4
IOUT (mA) 400 400
VIN Min (V) 2 2
VIN Max (V) 26 26
VOUT (V) 3.3, 4.8, 5.0, 12 3.3, 4.8, 5.0, 12
Voltage Drop Typ (mV) 400 400
IGND Typ (µA) 140 140
Tol Typ % ±1 ±1
Noise (µV) rms 400 400
PSRR 1 kHz (dB) 70 70
Soft Start Pin
Load Dump Yes Yes
Rev Bat Yes Yes
Reverse Current Protect
文档资料
MIC2920A/29201/29202/29204 - 400mA Low-Dropout Voltage RegulatorData Sheets11/09/2015404KB
Micrel AN 12 - Design Considerations for 5V to 3.3V Pass RegulatorsAppNote10/01/201528KB
Micrel AN 43 - Improving Adjustable Regulator AccuracyAppNote10/01/201559KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC2920A-12WS3SOT-223-40C to +125CTUBE1.321.101.000.830.77
MIC2920A-12WS-TR3SOT-223-40C to +125CT/R1.321.101.000.830.77
MIC2920A-3.3WS3SOT-223-40C to +125CTUBE1.321.101.000.830.77
MIC2920A-3.3WS-TR3SOT-223-40C to +125CT/R1.321.101.000.830.77
MIC2920A-5.0WS3SOT-223-40C to +125CTUBE1.321.101.000.830.77
MIC2920A-5.0WS-TR3SOT-223-40C to +125CT/R1.321.101.000.830.77
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC2920A-5.0WT1.8902002.6600003TO-220-Matte Tine3
MIC2920A-12WT1.8902002.6600003TO-220-Matte Tine3
MIC2920A-3.3WT1.8902002.6600003TO-220-Matte Tine3
MIC2920A-4.8WT1.8902002.6600003TO-220-Matte Tine3
MIC2920A-12WS0.1230000.2435903SOT-223-Matte Tine3
MIC2920A-3.3WS0.1230000.2435903SOT-223-Matte Tine3
MIC2920A-12WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC2920A-3.3WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC2920A-5.0WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC2920A-5.0WS0.1230000.2435903SOT-223-Matte Tine3
MIC2920A/29201/29202/29204 - 400mA Low-Dropout Voltage Regulator MIC2920A
Micrel AN 12 MIC2951
Micrel AN 43 MIC29751