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MAX8570, MAX8571, MAX8572, MAX8573, MAX8574, MAX8575

High-Efficiency LCD Boost with True Shutdown

First Fully Protected LCD and OLED Supplies in SOT23 Package

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX8570 family of LCD step-up converters uses an internal n-channel switch and an internal p-channel output isolation switch. These converters operate from a 2.7V to 5.5V supply voltage and deliver up to 28V at the output.

A unique control scheme provides the highest efficiency over a wide range of load conditions. The internal MOSFET switch reduces external component count and a high switching frequency (up to 800kHz) allows for tiny surface-mount components. Three current-limit options are available. The MAX8570 and MAX8572 use a 110mA current limit to reduce ripple and component size in low-current applications. For high-power requirements, the MAX8574 and MAX8575 use a 500mA current limit and supply up to 20mA at 20V. The MAX8571 and MAX8573 use a 250mA current limit for a compromise between ripple and power. Built-in safety features protect the internal switch and down-stream components from fault conditions.

Additional features include a low quiescent current and a True Shutdown™ mode to save power. The MAX8570/MAX8571/MAX8574 allow the user to set the output voltage between 3V and 28V, and the MAX8572/MAX8573/MAX8575 have a preset 15V output. These step-up converters are ideal for small LCD panels with low current requirements, but can also be used in other applications. The MAX8571 evaluation kit is available to help reduce design time.

Data Sheet

Download	Rev 3	(PDF, 200kB)
E-Mail

An evaluation kit is available: MAX8571EVKIT

Key Features

15V or Adjustable Output Voltage Up to 28V
Safety Features Protect Against Output Faults
20mA at 20V from a Single Li+ Battery
True Shutdown
87% Efficiency
Up to 800kHz Switching Frequency
Small, 6-Pin SOT23 and µDFN (MAX8570 Only) Packages

Applications/Uses

Cell Phones/Cordless Phones
Handy Terminals
LCD Bias Generators
Organizers
Palmtop Computers
PDAs and Other Handheld Devices
Polymer LEDs (OLED)

Key Specifications:

Step-Up Switching Regulators

Part Number

V_IN
(V)

V_OUT
(V)

Preset V_OUT
(V)

Max. I_OUT
(A)

Output Adjust. Method

DC-DC Outputs

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

min

max

≥

≤

max w/pins

See Notes

MAX8570

2.7

5.5

2.7

0.01

Resistor

µDFN/6

SOT/6

$1.34 @1k

MAX8571

2.7

0.015

Resistor

SOT/6

$1.34 @1k

MAX8572

0.01

Preset

SOT/6

$1.34 @1k

MAX8573

0.015

Preset

SOT/6

$1.34 @1k

MAX8574

2.7

0.025

Resistor

SOT/6

$1.34 @1k

MAX8575

0.025

Preset

SOT/6

$1.34 @1k

See All Step-Up Switching Regulators (91)

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 Application Circuit

Application Notes

Application Note 4499		Miniature Circuit Converts Negative Inputs to Positive Outputs
Tutorial 4671		Improve Sensor Performance and SNR in Pulse Oximeter Designs

Reliability Reports

Reliability Report:	MAX8570.pdf
Show FIT data for:
Request Reliability Report 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
MAX8570ELT+			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8570ELT+T			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8570ELT+TG47			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8570EUT+			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8570EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8570EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8571EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8571EUT+TG40			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8571EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8572EUT+			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+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
MAX8572EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8572EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8573EUT+			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8573EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8573EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8574EUT+			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8574EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8574EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8575EUT+			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8575EUT+T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN+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
MAX8575EUT-T			Active	SOT;6 pin;9 mm² Outline Drawing:21-0058 (PDF) Land Pattern: 90-0175 (PDF) Use pkgcode/variation: U6SN-1*	-40°C to +85°C	RoHS/Lead-Free: No 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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See All Step-Up Switching Regulators (100 Products)

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Evaluation Kits

MAX8571EVKIT

Evaluation Kit for MAX8570, MAX8571, MAX8572, MAX8573, MAX8574, MAX8575

Products with Similar Part Numbers

MAX8571EVKIT

Evaluation Kit for MAX8570, MAX8571, MAX8572, MAX8573, MAX8574, MAX8575

More Information

Topmark Coding	MAX8570
Topmark Coding	MAX8571
Topmark Coding	MAX8572
Topmark Coding	MAX8573
Topmark Coding	MAX8574
Topmark Coding	MAX8575
New Product Press Release	[ 2004-09-02 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-3329 Rev 3; 2010-03-24
This page last modified: 2010-11-09

High-Efficiency LCD Boost with True Shutdown

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Application Notes

Reliability Reports

Software/Models

Ordering Information

Similar Products by Function

Similar Products by Application

Evaluation Kits

Products with Similar Part Numbers

More Information

Didn't Find What You Need?

Information Index

Overview

Technical Documents

Ordering Info

Related Products