CAT6218: 300 mA LDO Regulator

Description: The CAT6218 is a 300 mA CMOS low dropout regulator...
  • The CAT6218 is a 300 mA CMOS low dropout regulator that provides fast response time during load current and line voltage changes.

    The quick-start feature allows the use of an external bypass capacitor to reduce the overall output noise without affecting the turn-on time of just 150 µs.

    With zero shutdown current and low ground current of 55 µA typical, the CAT6218 is ideal for battery-operated devices with supply voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit disables the output at supply voltages under 2.1 V typical.

    The CAT6218 offers 1% initial accuracy and low dropout voltage, 180 mV typical at 300 mA. Stable operation is provided with a small value ceramic capacitor, reducing required board space and component cost.

    Other features include fold-back current current limit and thermal protection.

    The device is available in the low profile (1 mm max height) 5-lead thin SOT23 package.
  • Features
  • Guaranteed 300 mA output current
  • Low dropout voltage of 180 mV typical at 300 mA
  • Stable with 1 µF ceramic output capacitor
  • External 10 nF bypass capacitor for low noise
  • Quick-start feature
  • No-load ground current of 55 µA typical
  • Full-load ground current of 80 µA typical
  • ±1.0% initial accuracy (VOUT ≥ 2.0V)
  • ±2.0% accuracy over temperature (VOUT ≥ 2.0V)
  • “Zero” current shutdown mode
  • Fold-back current limit and undervoltage lockout
  • Thermal protection
  • Thin SOT23-5 package
  • Applications
  • Cellular phones
  • Battery powered devices
  • Consumer electronics
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    CAT6218-180TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 1.8 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT6218-240TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 2.4 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT6218-250TDGT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 2.5 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:>1K
  • ON Semiconductor:48,000
  • CAT6218-270TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 2.7 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT6218-285TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 2.85 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT6218-300TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 3.0 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT6218-320TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 3.2 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT6218-330TDGT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 300 mA LDO Regulator, VOUT = 3.3 V
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Specifications
  • Output: Single 
  • Polarity: Positive 
  • VO (V): 2.5 
  • IO Typ (A): 0.3 
  • VI Min (V): 2.3 
  • VI Max (V): 5.5 
  • VDO Typ (V): 0.18 
  • Iq Typ (mA): 0.08 
  • PSRR (dB): 64 
  • Noise (µVrms): 45 
  • Enable: Yes 
  • PowerGood: No 
  • Package Type: TSOT-23-5 
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