Maxim > Products > Power and Battery Management > MAX8840, MAX8841, MAX8842

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

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

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 11µV_RMS 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.

Data Sheet

Download	Rev 1	(PDF, 580kB)
E-Mail

Key Features

Space-Saving 1.0mm x 1.5mm x 0.8mm µDFN
11µV_RMS 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

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

Key Specifications:

Linear Regulators

Part Number

Regulators

V_IN
(V)

Preset V_OUT
(V)

Adj. V_OUT
(V)

V_DROPOUT @Rated I_LOAD
(V)

Rated I_LOAD
(mA)

I_CC
(µA)

Output Voltage Noise
(µV RMS)

Ref. Bypass

Low Batt./ Pwr. Fail Out

Watchdog

Reverse Batt. Protect.

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

min

max

typ

max

typ

max w/pins

See Notes

MAX8840

1.5
1.6
1.8
1.9
2.5
2.6
2.7
2.8
2.85
2.9
3
3.1
3.3
4.5

0.17

150

Yes

-40 to +85

µDFN/6

UTLGA/6

1.6

$0.54 @1k

MAX8841

1.5
1.6
1.8
1.9
2.5
2.6
2.7
2.8
2.85
2.9
3
3.1
3.3
4.5

230

µDFN/6

$0.54 @1k

MAX8842

1.225

230

µDFN/6

$0.54 @1k

See All Linear Regulators (146)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Product Guides

Audio (PDF)

Wireless (PDF)

Reliability Reports

Reliability Report:	MAX8840.pdf MAX8841.pdf MAX8842.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8840C/DW			Active	WAFER; Land Pattern: Not Available		See data sheet
MAX8840C/W			Active	WAFER; Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX8840ELT15+			Active	µDFN;6 pin;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8840ELT27+			Active	µDFN;6 pin;1.6 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+T			Active	µDFN;6 pin;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8840ELT40+T			Active	µDFN;6 pin;1.6 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;1.6 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;1.6 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	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX8840EYT27+			Active	UTLGA;6 pin;1.6 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+G65			Active	UTLGA;6 pin;1.6 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;1.6 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;1.6 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
MAX8841C/DW			Active	WAFER; Land Pattern: Not Available		See data sheet
MAX8841C/W			Active	WAFER; Land Pattern: Not Available	0°C to +70°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8841ELT15+T			Active	µDFN;6 pin;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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;1.6 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+T			Active	µDFN;6 pin;1.6 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
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8841ELTXY+T			Active	uDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX8842ELT+			Active	µDFN;6 pin;1.6 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+T			Active	µDFN;6 pin;1.6 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

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* 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.

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More Information

Topmark Coding	MAX8840
Topmark Coding	MAX8841
Topmark Coding	MAX8842
New Product Press Release	[ 2007-02-28 ]

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