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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 120kB) Download   E-Mail

Description

The MAX1749 allows for a constant vibration force while operating from a +2.5V to +6.5V input range and delivering up to 120mA. A PMOS pass transistor allows the 80µA supply current to remail independent of the load. The output voltage can be adjusted from +1.25V to VIN with an external resistor-divider. When turned off (ON = low), the MAX1749 supply current drops to 1µA (max) to minimize battery drain. Other features include short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX1749 is available in a 5-pin SOT23 package.

Key Features		Applications/Uses
Fixed 1.25V or Adjustable (1.25V to 6.5V) Output Low Cost Thermal Overload Protection Output Current Limit Reverse Battery Protection Low 0.1nA Off Supply Current Low 80µA Full-Load Supply Current		Pager Vibrator Motor Drivers Wireless Handset Vibrator Motor Drivers

Diagram

Typical Operating Circuit

Application Notes

Application Note 1014: Design Case Study: Designing a Power Supply for a Portable, Wireless Contact Manager - MAX1749

Reliability Reports

Show FIT data for: MAX1749 Request Reliability Report for: MAX1749

Software/Models

none

Ordering Information

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. More: SeeFull Data Sheet or Part 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.

Devices: 1-4 of 4

MAX1749	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1749EUK+			Active	SOT;5 pin;9 mm² Outline Drawing: 21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1749EUK			Active	SOT;5 pin;9 mm² Outline Drawing: 21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1749EUK-T			Active	SOT;5 pin;9 mm² Outline Drawing: 21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1749EUK+T			Active	SOT;5 pin;9 mm² Outline Drawing: 21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes and Comments

Low-noise, low-dropout, reverse battery protection

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