MAX8891:High PSRR, Low-Dropout, 150mA Linear Regulators

Low-Dropout Linear Regulators Designed for Ultra-Low Noise in a SC70 Package

The MAX8891/MAX8892 low-dropout (LDO) linear regulators are designed to deliver up to 150mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current. The MAX8891 only requires an input/output capacitor, hence achieving the smallest PCB area. The MAX8892's output voltage can be adjusted with an external divider. The MAX8891 is preset to a variety of voltages in the 1.5V to 4.5V range. Designed with a p-channel MOSFET series pass transistor, the MAX8891/MAX8892 maintain very low ground current (40µA). The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8891/MAX8892 require only 1µF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1µA. These regulators are available in a tiny 5-pin SC70 package.

Key Features
  • Space-Saving SC70 Package
  • 65dB PSRR at 10kHz
  • 120mV Dropout at 120mA Load
  • Stable with 1µF Ceramic Capacitor for Any Load
  • Guaranteed 150mA Output
  • Only Need Input and Output Capacitors (MAX8891)
  • Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V (MAX8891) and Adjustable (MAX8892)
  • Low 40µA Ground Current
  • Excellent Load/Line Transient
  • Overcurrent and Thermal Protection
MAX8891, MAX8892: Typical Operating Circuits
MAX8891, MAX8892: Typical Operating Circuits
Applications/Uses
  • Base Stations
  • Bluetooth Portable Radios and Accessories
  • Cellular and Cordless Phones
  • Digital Cameras
  • PDA and Palmtop Computers
  • Personal Stereos
  • Portable and Battery-Powered Equipment
  • Wireless LANs
DataSheet
titleDownload file
MAX8891-MAX8892 Data SheetMAX8891-MAX8892.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)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutWatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtyptypSee Notes
MAX88911261.5
1.8
2.5
2.6
2.8
2.85
2.9
3.1
3.3
4.5
--0.15150150230NoNoNoNo-40 to +85SC-70/5$0.45 @1k
MAX8892-1.2254.5SC-70/5
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8891EXK15+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK18+ActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK18+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK19+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK25+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK26+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK27+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK28+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK29+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK30+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8891EXK31+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK33+ActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK33+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK33/V+ActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK33/V+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK35+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK45+ActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK45+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891EXK89+TActiveSC-70,;5 pin;5.3 mm²-40°C to +85°CLead Free
MAX8891-MAX8892.pdf MAX8892
MAX8891.pdf MAX8891
MAX8891-MAX8892.pdf MAX8892