MAX8885:150mA, Low-Dropout Linear Regulator with Power OK Output

SOT23 Low-Dropout Regulators Give Longest Battery Life

The MAX8885 low-dropout (LDO) linear regulator operates from a +2.5V to +6.5V input voltage range and delivers up to 150mA. It uses a P-channel MOSFET pass transistor to allow a low 85µA supply current-which is independent of the load-as well as LDO voltage. The MAX8885 is optimized to operate with low-cost, high-ESR output capacitors such as small case-size tantalum capacitors. It is ideal for cost-sensitive portable equipment such as PCS and cellular phones. For a pin-compatible, functionally equivalent device for use with a low-ESR, ceramic output capacitor, refer to the MAX8875 data sheet. The MAX8885 features a power-OK output that indicates when the output is out of regulation, and is available in preset output voltage versions of 5.0V, 3.3V, 3.0V, 2.7V, and 2.5V. Other features include 1µA (max) shutdown current, short-circuit protection, thermal shutdown protection, and reverse-battery protection. The MAX8885 is available in a miniature 5-pin SOT23 package.

Key Features
  • Optimized for Low-Cost Tantalum Capacitors
  • Pin Compatible with MIC5206
  • Undervoltage Power-OK Output
  • 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
MAX8885: Typical Operating Circuit
MAX8885: Typical Operating Circuit
Applications/Uses
  • Cell Phones
  • Cordless Phones
  • Electronic Planners
  • Handheld Instruments (PDAs, Palmtops)
  • Modems
  • Palmtop Computers
  • PCMCIA Cards
  • PCS Phones
DataSheet
titleDownload file
MAX8885 Data SheetMAX8885.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Special Order PresetVDROPOUT @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
MAX888512.56.52.5
2.7
3
3.3
5
2.5 to 5.0 by 0.10.16150150180170NoNoVout-5%NoYes-40 to +85SOT/5$0.77 @1k
Related Products
  • MAX8875:150mA, 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
MAX8885EUK25+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK25+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK25-TNo Longer AvailableMAX8885EUK25+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8885EUK27+TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK27-TNo Longer AvailableSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8885EUK30+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK30+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK30-TNo Longer AvailableMAX8885EUK30+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8885EUK33+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK33+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8885EUK33-TNo Longer AvailableMAX8885EUK33+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8885EUK50+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK50+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK50+TG103ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX8885EUK50-TNo Longer AvailableMAX8885EUK50+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX8885.pdf MAX8885
Selecting LDO Linear Regulators for Cellphone Designs MAX8887
典型工作电路 MAX8885