MAX8875:150mA, Low-Dropout Linear Regulator with Power OK Output

SOT23 Low-Dropout Regulators Give Longest Battery Life

The MAX8875 low-dropout linear regulator operates from a +2.5V to +6.5V input range and delivers up to 150mA. A P-channel MOSFET pass transistor allows its 85µA supply current to remain independent of the load, making this device ideal for battery-operated portable equipment such as PCS phones, cellular phones, cordless phones, and modems. The MAX8875 features a power-OK output that indicates when the output is out of regulation. The device is available in several preset output voltage versions: 5.0V, 3.3V, 3.0V, 2.7V, 2.5V, or 1.5V. Other features include 1µA (max) shutdown current, short-circuit protection, thermal shutdown protection, and reverse-battery protection. The device comes in a miniature 5-pin SOT23 package. The MAX8875 is optimized for use with a 1µF ceramic output capacitor. For a pin-compatible, functionally equivalent device for use with a higher ESR output capacitor, see the MAX8885 data sheet.

Key Features
  • Power-OK Output
  • Small Output Capacitor (1µF ceramic)
  • Preset Output Voltages (±1% accuracy)
  • Guaranteed 150mA Output Current
  • 85µA No-Load Supply Current
  • Low 110mV Dropout at 100mA Load (165mV at 150mA load)
  • Thermal-Overload and Short-Circuit Protection
  • Reverse-Battery Protection
  • 60dB PSRR at 100Hz
  • 1µA max Shutdown Current
MAX8875: Typical Operating Circuit
MAX8875: Typical Operating Circuit
Applications/Uses
  • Audio Systems
  • Cordless Phones
  • Electronic Planners
  • Handheld Instruments (PDAs, Palmtops)
  • Modems
  • Palmtop Computers
  • PCMCIA Cards
  • PCS Telephones
DataSheet
titleDownload file
MAX8875 Data SheetMAX8875.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset 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
minmaxtypmaxtypnomSee Notes
MAX887512.56.51.5
2.5
2.7
3
3.3
5
0.16150150180170NoYesVout-10.5%NoYes-40 to +85SOT/5$0.77 @1k
Quality and Environmental Data
Related Products
  • MAX8885:150mA, Low-Dropout Linear Regulator with Power OK Output
  • MAX8868:Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
  • MAX8867:Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
  • MAX8877:Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
  • MAX8878:Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8875EUK25+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK25+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK25-TNo Longer AvailableMAX8875EUK25+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK27+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK27+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK27-TNo Longer AvailableMAX8875EUK27+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK30+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK30+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK30-TNo Longer AvailableMAX8875EUK30+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK33No Longer AvailableMAX8875EUK33+SOT,;5 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8875EUK33+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK33+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK33-TLast Time BuySOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK33-TG1KNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK33/GH9-TNo Longer AvailableMAX8875EUK33+SOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK50No Longer AvailableMAX8875EUK50+SOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8875EUK50+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK50+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8875EUK50-TNo Longer AvailableMAX8875EUK50+TSOT,;5 pin;9 mm²-40°C to +85°CNo
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