MCP1791

The MCP1791 is a 70 mA, ceramic output cap stable, high voltage, Low Dropout Regulator (LDO) with shutdown and power good functions. The MCP1791 is capable of handling continuous input voltage of up to 30V and is load dump protect for up to 48V, making it especially suitable for automotive as well as 12V/24V industrial applications. The MCP1791 comes in thermally enhanced DDPAK-5 package as well as space-efficient SOT223-5 package.

Features
  • Wide steady state supply voltage: 6.0V - 30.0V
  • 48V (43.5V ±10%) load dump protected for 180ms with a 30 second repetition rate
  • 70 mA output current
  • Low quiescent current: 70 µA typical
  • Fixed output voltages: 3.0V, 3.3V, 5.0V
  • Extended Junction Temperature Range: -40 to +125°C
  • Output Voltage Tolerances of ±2.5% over the temperature range
  • Short Circuit Current Foldback
  • Shutdown Input
  • Power Good Output
  • High PSRR, -90 dB@100 Hz (typical)
Parameter
Parameter Name Value Value
Product Type Single LDOs Single LDOs
# of Out 1 1
IOUT #1
IOUT #2
IOUT #3
IOUT #4
IOUT (mA) 70 70
VIN Min (V) 6 6
VIN Max (V) 30 30
VOUT (V) 3.0 3.3 5.0 3.0 3.3 5.0
Voltage Drop Typ (mV) 700 700
IGND Typ (µA) 70 70
Tol Typ % ±0.2 ±0.2
PSRR 1 kHz (dB) 90 90
Soft Start Pin
Load Dump
Rev Bat
Reverse Current Protect
Documents
MCP1790/MCP1791 DatasheetData Sheets02/06/20121108KB
AN1025 - Converting a 5.0V Supply Rail to a Regulated 3.0V, AN1025AppNote02/23/2006527KB
AN761 - LDO Thermal ConsiderationsAppNote11/12/2002266KB
AN776 - DC Performance Comparisons of CMOS vs Bipolar LDOs When Operating in "Dropout" (Vin = Nominal Vout) Mode (list devices)AppNote11/12/2002229KB
Automotive Recommended Product Selector GuideProduct Line Card09/16/20147598KB
SOT223-3 Voltage Regulator Eval Board User's GuideUser Guides04/29/2009550KB
TO220-5 / TO263-5 Voltage Regulator Evaluation Board User's GuideUser Guides06/18/2009602KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP1791-3002E/ET5DDPAK-40C to +125CTUBE0.930.780.710.680.67
MCP1791-3302E/ET5DDPAK-40C to +125CTUBE0.930.780.710.680.67
MCP1791-5002E/ET5DDPAK-40C to +125CTUBE0.930.780.710.680.67
MCP1791T-3002E/DC5SOT-223-40C to +125CT/R0.730.610.550.530.53
MCP1791T-3002E/ET5DDPAK-40C to +125CT/R0.930.780.710.680.67
MCP1791T-3302E/DC5SOT-223-40C to +125CT/R0.730.610.550.530.53
MCP1791T-3302E/ET5DDPAK-40C to +125CT/R0.930.780.710.680.67
MCP1791T-5002E/DC5SOT-223-40C to +125CT/R0.730.610.550.530.53
MCP1791T-5002E/ET5DDPAK-40C to +125CT/R0.930.780.710.680.67
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP1791-5002E/ET1.4625002.5200005DDPAK-Matte Tine3
MCP1791T-3002E/ET1.4625002.0533335DDPAK-Matte Tine3
MCP1791-3002E/ET1.4625002.5200005DDPAK-Matte Tine3
MCP1791T-5002E/ET1.4625002.0533335DDPAK-Matte Tine3
MCP1791-3302E/ET1.4625002.5200005DDPAK-Matte Tine3
MCP1791T-3302E/ET1.4625002.0533335DDPAK-Matte Tine3
MCP1791T-3002E/DC0.0165000.3500005SOT-223-Matte Tine3
MCP1791T-3302E/DC0.0165000.3500005SOT-223-Matte Tine3
MCP1791T-5002E/DC0.0165000.3500005SOT-223-Matte Tine3
MCP1791T-5002E/DCVAO0.0165000.3500005SOT-223-Matte Tine3
MCP1790/MCP1791 Datasheet MCP1791
MCP1790/MCP1791 Datasheet MCP1630RD-SALED
AN1025 MCP1253
AN761 TC59
AN776 TC2185
Automotive Recommended Product Selector Guide MCP23S09
SOT223-3 Voltage Regulator Eval Board User's Guide SOT223-3EV-VREG
TO220-5 / TO263-5 Voltage Regulator Evaluation Board User's Guide TO263-5EV-VREG
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