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Maxim > Products > [Power and Battery Management] 
MAX8840, MAX8841, MAX8842
Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN

Ultra-Low-Noise, Low-Dropout, 150mA Linear Regulator Requires Only 3.9mm2 Total Solution Size without Compromising Performance


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 580kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX8840/MAX8841/MAX8842 ultra-low-noise, 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 MAX8840 uses an advanced architecture to achieve ultra-low output voltage noise of 11µVRMS and PSRR of 54dB at 100kHz.

The MAX8841 does not require a bypass capacitor, hence achieving the smallest PC board area. The MAX8842 output voltage can be adjusted with an external divider.

The MAX8840/MAX8841 are preset to a variety of voltages in the 1.5V to 4.5V range. Designed with a p-channel MOSFET series pass transistor, the MAX8840/MAX8841/MAX8842 maintain very low ground current (40µA).

The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8840 requires only 1µF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1µA.

The MAX8840/MAX8841/MAX8842 are available in a tiny 1mm x 1.5mm x 0.8mm µDFN.

Key Features   Applications/Uses
  • Space-Saving 1.0mm x 1.5mm x 0.8mm µDFN
  • 11µVRMS Output Noise at 100Hz to 100kHz Bandwidth (MAX8840)
  • 78dB PSRR at 1kHz (MAX8840)
  • 120mV Dropout at 120mA Load
  • Stable with 1µF Ceramic Capacitor for Any Load
  • Guaranteed 150mA Output
  • Only Need Input and Output Capacitors (MAX8841)
  • Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V (MAX8840/MAX8841) and Adjustable (MAX8842)
  • Low 40µA Ground Current
  • Excellent Load/Line Transient
  • Overcurrent and Thermal Protection

 
  		• 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

    Key Specifications:  Linear Regulators
    Part Number Regulators VIN
    (V)    		 VIN
    (V)    		 Preset VOUT
    (V)    		 Adj. VOUT
    (V)    		 Adj. VOUT
    (V)    		 VDROPOUT @Rated ILOAD
    (V)    		 Rated ILOAD
    (mA)    		 ICC
    (µA)    		 Low Batt./ Pwr. Fail Out Watchdog Reverse Batt. Protect. Package/Pins Smallest Available Pckg.
    (mm2)    		 Oper. Temp.
    (°C)    		 Price
    min max min max typ max max w/pins See Notes
    MAX8840  1 2 6 1.5 to 4.5 - - 0.17 150 90 No No No
    µDFN/6
    UTLGA/6
    		 2 -40 to +85 $0.54 @1k
    MAX8841  1.5 to 4.5 - -
    µDFN/6
    		 $0.54 @1k
    MAX8842  - 1.225 5
    µDFN/6
    		 $0.54 @1k
    See All Linear Regulators (153)

    Diagram
    MAX8840, MAX8841, MAX8842: Typical Operating Circuit
    Typical Operating Circuit

    Design Guides
  		• Wireless (PDF)
  		• Audio (PDF)
  		• Power Management for Battery-Powered Equipment (PDF)

    Reliability Reports
  		• Reliability Report: MAX8840.pdf MAX8841.pdf
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-45 of 45

    MAX8840 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8840ELT27+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT28+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT27+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT28+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT18+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT30+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT30+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT21+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT33+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT33+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT15+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT15+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT29+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT19+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT19+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT29+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT16+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT45+TG65    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT45+G65    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT40+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT45+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT40+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELT18+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840ELTXY+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX8840EYT27+G65    
    		Active UTLGA;6 pin;2 mm²
    Outline Drawing: 21-0190 (PDF)
    Land Pattern: 90-0233 (PDF)
    Use pkgcode/variation: Y61A1+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840EYT27+    
    		Active UTLGA;6 pin;2 mm²
    Outline Drawing: 21-0190 (PDF)
    Land Pattern: 90-0233 (PDF)
    Use pkgcode/variation: Y61A1+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840EYT27+TG65    
    		Active UTLGA;6 pin;2 mm²
    Outline Drawing: 21-0190 (PDF)
    Land Pattern: 90-0233 (PDF)
    Use pkgcode/variation: Y61A1+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840EYT27+T    
    		Active UTLGA;6 pin;2 mm²
    Outline Drawing: 21-0190 (PDF)
    Land Pattern: 90-0233 (PDF)
    Use pkgcode/variation: Y61A1+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8840C/DW    
    		Active

    Land Pattern: Not Available

    		See data sheet
    MAX8840C/W    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX8841 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8841ELT33+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT33+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT29+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT29+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT25+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT25+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT18+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT18+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT28+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELT15+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8841ELTXY+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX8841C/DW    
    		Active

    Land Pattern: Not Available

    		See data sheet
    MAX8841C/W    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX8842 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8842ELT+T    
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8842ELT+  
    		Active µDFN;6 pin;2 mm²
    Outline Drawing: 21-0147 (PDF)
    Land Pattern: 90-0080 (PDF)
    Use pkgcode/variation: L611+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX8840 MAX8841 MAX8842
  		• New Product Press Release 2007-02-28 
  		• Product Ad: Download

    Related Products
    MAX8867, MAX8868 Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
    MAX8877, MAX8878 Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
    MAX8882, MAX8883 Dual, Low-Noise, Low-Dropout, 160mA Linear Regulators in SOT23

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    Document Ref.: 19-0629; Rev 1; 2007-02-02
    This page last modified: 2007-04-19


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