MAX8869:1A, Microcap, Low-Dropout, Linear Regulator

Compact, 1A, Low-Dropout Linear Regulator Requires Just 1µF Output Capacitor!

The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The high-accuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider. The MAX8869 uses Microcap® technology and requires only a small 1µF output capacitor for guaranteed stability. An internal PMOS pass transistor allows low 500µA supply current, making this regulator useful for networking and telecom hardware as well as battery-operated equipment. Other features include soft-start, low-power shutdown, short-circuit protection, and thermal shutdown protection. The MAX8869 is available in a 1.5W, 16-pin TSSOP package, which is 30% smaller than a SOT223 and only 1.1mm high.

Key Features
  • Guaranteed 1A Output Current
  • Stable with COUT = 1µF
  • Low 200mV Dropout at 1A
  • ±1% Output Voltage Accuracy
    • Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V and Adjustable from +0.8V to +5.0V
  • 54dB PSRR at 100kHz
  • Adjustable Soft-Start
  • 3ms Reset Output
  • Foldback Output Current Limit
  • Thermal Overload Protection
  • High-Power 16-Pin TSSOP Package (1.5W)
    • 30% Smaller than SOT223 (Only 1.1mm High)
MAX8869: Typical Operating Circuit
MAX8869: Typical Operating Circuit
Applications/Uses
  • Mobile Phone Base Stations
  • Network Equipment
  • Notebook Computers
  • Personal Computing
  • Telecom Hardware
DataSheet
titleDownload file
MAX8869 Data SheetMAX8869.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutPOK/Reset Thresh.
(V)
WatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxtypnomSee Notes
MAX886912.75.51
1.8
2.5
3.3
5
0.850.2100010002000150NoNoVout-8%NoNo-40 to +85TSSOP-EP/16$2.69 @1k
Quality and Environmental Data
Related Products
  • MAX1792:500mA, Low-Dropout Linear Regulator in µMAX
  • MAX1793:Low-Dropout, Low-IQ, 1A Linear Regulator
  • MAX688:High-Accuracy, Low-Dropout Linear Regulators
  • MAX689:High-Accuracy, Low-Dropout Linear Regulators
  • MAX687:High-Accuracy, Low-Dropout Linear Regulators
  • MAX603:5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear Regulators
  • MAX604:5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear Regulators
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8869EUE10No Longer AvailableMAX8869EUE10+TSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CNo
MAX8869EUE10+ActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE10+TActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE10-TNo Longer AvailableMAX8869EUE10+TTSSOP;16 pin-40°C to +85°CSee data sheet
MAX8869EUE18+ActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE18+TActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE25No Longer AvailableMAX8869EUE25+TSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CNo
MAX8869EUE25+ActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE25+TActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE25-TNo Longer AvailableMAX8869EUE25+TTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8869EUE25/V+No Longer AvailableTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE25/V+TNo Longer AvailableTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE33+ActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE33+TActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE33/GG8ActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CNo
MAX8869EUE50+ActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869EUE50+TActiveTSSOP-EP,;16 pin;33.2 mm²-40°C to +85°CLead Free
MAX8869.pdf MAX8869
MAX8869.pdf MAX8869
MAX8869.pdf MAX8869
MAX8869.pdf MAX8869
典型工作电路 MAX8869