Maxim > Products > Power and Battery Management > MAX1722, MAX1723, MAX1724

MAX1722, MAX1723, MAX1724

1.5µA I_Q, Step-Up DC-DC Converters in Thin SOT23-5

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX1722/MAX1723/MAX1724 compact, high-efficiency, step-up DC-DC converters are available in tiny, 5-pin thin SOT23 packages. They feature an extremely low 1.5µA quiescent supply current to ensure the highest possible light-load efficiency. Optimized for operation from one to two alkaline or nickel-metal-hydride (NiMH) cells, or a single Li+ cell, these devices are ideal for applications where extremely low quiescent current and ultra-small size are critical.

Built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode. All three devices feature a 0.5Ω N-channel power switch. The MAX1722/MAX1724 also feature proprietary noise-reduction circuitry, which suppresses electromagnetic interference (EMI) caused by the inductor in many step-up applications. The family offers different combinations of fixed or adjustable outputs, shutdown, and EMI reduction (see Selector Guide).

Data Sheet

Download	Rev 0	(PDF, 304kB)
E-Mail

An evaluation kit is available: MAX1724EVKIT

Key Features

Up to 90% Efficiency
No External Diode or FETs Needed
1.5µA Quiescent Supply Current
0.1µA Logic-Controlled Shutdown
±1% Output Voltage Accuracy
Fixed Output Voltage (MAX1724) or Adjustable Output Voltage (MAX1722/MAX1723)
Up to 150mA Output Current
0.8V to 5.5V Input Voltage Range
0.91V Guaranteed Startup (MAX1722/MAX1724)
Internal EMI Suppression (MAX1722/MAX1724)
Thin SOT23-5 Package (1.1mm max Height)

Applications/Uses

Digital Still Cameras
Low-Power Handheld Instruments
MP3 Players
Pagers
PDAs and Other Handheld Devices
Personal Medical Devices
Remote Controls
Remote Wireless Transmitters
Single-Cell Battery-Powered Devices

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

MAX1722

0.8

5.5

0.15

Resistor

TSOT/5

8.3

$1.56 @1k

MAX1723

5.5

Resistor

TSOT/5

$1.56 @1k

MAX1724

2.7

3.3

Preset

TSOT/5

$1.56 @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

Pin Configuration

MAX1723, MAX1724: Pin Configuration

Pin Configuration

Application Notes

Reference Design 3241		Charging Batteries Using USB Power
Application Note 3425		Converter Boosts One-Cell Battery Voltage to 50V
Tutorial 4690		Important Design Considerations for Digital Thermometers
Tutorial 4691		Introduction to Hearing Aids and Important Design Considerations

Reliability Reports

Reliability Report:	MAX1722.pdf MAX1723.pdf MAX1724.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
MAX1722EZK+			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1722EZK+T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1722EZK-T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1723EZK			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1723EZK+			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1723EZK+T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1723EZK-T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1724EZK27+			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1724EZK27+T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1724EZK27-T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1724EZK30			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1724EZK30+			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1724EZK30+T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1724EZK30-T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1724EZK33			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1724EZK33+T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1724EZK33-T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1724EZK50+T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1724EZK50-T			Active	TSOT;5 pin;8.3 mm² Outline Drawing:21-0113 (PDF) Land Pattern: 90-0241 (PDF) Use pkgcode/variation: Z5-1*	-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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Evaluation Kits

MAX1724EVKIT

Evaluation Kit for the MAX1722, MAX1723, MAX1724

Products with Similar Part Numbers

MAX1724EVKIT

Evaluation Kit for the MAX1722, MAX1723, MAX1724

More Information

Topmark Coding	MAX1722
Topmark Coding	MAX1723
Topmark Coding	MAX1724
New Product Press Release	[ 2001-08-31 ] [ 2001-08-02 ]

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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.: 19-1735 Rev 0; 2001-07-31
This page last modified: 2009-10-15

1.5µA IQ, Step-Up DC-DC Converters in Thin SOT23-5

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

1.5µA I_Q, Step-Up DC-DC Converters in Thin SOT23-5