Maxim > Products > Power and Battery Management > MAX1749

MAX1749

SOT23 Vibrator Motor Driver

Allows Constant Vibration Force over the Battery Voltage Range

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

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 V_IN 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.

Data Sheet

Download	Rev 1	(PDF, 120kB)
E-Mail

Key Features

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

Applications/Uses

Pager Vibrator Motor Drivers
Wireless Handset Vibrator Motor Drivers

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)

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

max w/pins

See Notes

MAX1749

2.5

6.5

1.25

6.5

0.13

120

200

Yes

-40 to +85

SOT/5

$1.41 @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

Notes and Comments

Low-noise, low-dropout, reverse battery protection

More Information

Topmark Coding