MAX8887:Low-Dropout, 300mA Linear Regulators in SOT23

Highest-Power, 300mA, Low-Dropout Linear Regulator in Thin-SOT23

The MAX8887/MAX8888 low-dropout linear regulators operate from a 2.5V to 5.5V input and deliver up to 300mA continuous (500mA pulsed) current. The MAX8887 is optimized for low-noise operation, while the MAX8888 includes an open-drain power-OK (POK) ouput flag. Both regulators feature exceptionally low 100mV dropout at 200mA. These devices are available in a variety of preset output voltages in the 1.5V to 3.3V range. An internal PMOS pass transistor allows the low 55µA supply current to remain independent of load, making these devices ideal for portable battery-powered equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, and notebook computers. Other features include a micropower shutdown mode, short-circuit protection, thermal shutdown protection, and an active-low open-drain POK output that indicates when the output is out of regulation. The MAX8887/MAX8888 are available in a thin 5-pin SOT23 package that is only 1mm high.

Key Features
  • Guaranteed 300mA Output Current (500mA for Pulsed Loads)
  • Low 100mV Dropout at 200mA Load
  • POK Output (MAX8888)
  • 42µVRMS Output Noise (MAX8887)
  • Preset Output Voltages (1.5V, 1.8V, 2.85V, and 3.3V)
  • 55µA No-Load Supply Current
  • Thermal-Overload and Short-Circuit Protection
  • Foldback Output Current-Limit Protection
  • 60dB PSRR at 1kHz
  • 0.1µA Shutdown Current
  • Thin 5-Pin SOT23 Package, 1mm High
MAX8887, MAX8888: Typical Operating Circuit
MAX8887, MAX8888: Typical Operating Circuit
  • Digital Still Cameras
  • Handheld Instruments (PDAs, Palmtops)
  • Notebook Computers
  • PCMCIA Cards
  • PDAs and Palmtop Computers
  • Wireless Handsets
titleDownload file
MAX8887-MAX8888 Data SheetMAX8887-MAX8888.pdf
Part NumberRegulatorsVIN
Preset VOUT
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutPOK/Reset Thresh.
WatchdogReverse Batt. Protect.Oper. Temp.
minmaxtypmaxtypnomSee Notes
0.1530030010042YesNo-NoNo-40 to +85TSOT/5$0.84 @1k
Quality and Environmental Data
Related Products
  • MAX8863:Low-Dropout, 120mA Linear Regulators
  • MAX8864:Low-Dropout, 120mA Linear Regulators
  • MAX8880:12V, Ultra-Low-IQ, Low-Dropout Linear Regulators with POK
  • MAX8875:150mA, Low-Dropout Linear Regulator with Power OK Output
  • MAX8860:Low-Dropout, 300mA Linear Regulator in µMAX
  • 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
MAX8887EZK15ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK15+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK15+TActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK15-TNo Longer AvailableMAX8887EZK15+TTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK18No Longer AvailableMAX8887EZK18+TSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK18+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK18+TActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK18-TActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK25+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK25+TActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8887EZK25-TNo Longer AvailableMAX8887EZK25+TTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK27+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK27+TNo Longer AvailableTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK27-TNo Longer AvailableTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK28+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK28+TNo Longer AvailableTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK28-TNo Longer AvailableTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK29+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK29+TActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK29-TNo Longer AvailableMAX8887EZK29+TTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8887EZK30-TNo Longer AvailableTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
MAX8887EZK33+ActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK33+TActiveTSOT,;5 pin;8.3 mm²-40°C to +85°CLead Free
MAX8887EZK33-TNo Longer AvailableMAX8887EZK33+TTSOT,;5 pin;8.3 mm²-40°C to +85°CNo
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