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MAX891LEUA+ The MAX891LEUA+ from Analog Devices is a P-channel MOSFET power switch designed for high-side load-switching applications. It operates from 2.7V to 5.5V and features programmable current limiting and thermal shutdown.
Mfr Part #:

MAX891LEUA+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX891LEUA+ from Analog Devices is a P-channel MOSFET power switch designed for high-side load-switching applications. It operates from 2.7V to 5.5V and features programmable current limiting and thermal shutdown.
✓ Total Stock: 227 pcs
$ Price Range: $0.32

MAX891LEUA+ Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
227 pcs
On Request
227 pcs On Request 1 On Request On Request On Request On Request On Request
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MAX891LEUA+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Fault Protection
Features
Input Type
Interface
Mounting Type
Number of Outputs
Operating Temperature
Operating Voltage
Output Configuration
Output Type
Ratio
Rds On (Typ)
Supplier Device Package
Switch Type
Tape & Reel
Voltage
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MAX891LEUA+ Description

Short technical summary and product information.

The MAX891LEUA+ is a smart, low-voltage, P-channel MOSFET power switch from Analog Devices, suitable for high-side load-switching applications in 3V and 5V systems. It operates with an input voltage range of 2.7V to 5.5V.

 

Key features include internal current-limiting circuitry for input supply protection and thermal-overload protection. The current limit is programmable via an external resistor, with a maximum limit of 500mA for the MAX891L. The device boasts a low quiescent supply current of 13µA when the switch is on and 0.1µA when off.

 

This power switch is available in an ultra-small 8-pin µMAX package, measuring only 1.11mm high. It includes a FAULT indicator output. The typical on-resistance is 120mΩ.

 

Applications for the MAX891LEUA+ include PCMCIA slots, access bus slots, and portable equipment, where space and power efficiency are critical.

MAX891LEUA+ Quick Information

Product Type: Power Switch IC
Series: MAX891L
Canonical Name: MAX891LEUA+ Current-Limited High-Side P-Channel MOSFET Power Switch
Subcategory: Power Switch ICs - Power Distribution

MAX891LEUA+ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX891LEUA+ Estimated Pricing

Qty Low High
1+ $0.32 $0.32

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX891LEUA+ Features

  • Low-voltage P-channel MOSFET power switch.
  • Operates from 2.7V to 5.5V input.
  • Programmable current limit up to 500mA.
  • Thermal shutdown and fault indicator output.
  • Ultra-small 8-pin µMAX package.

MAX891LEUA+ Applications

  • USB peripheral power switching.
  • Hot-swap power management.
  • Portable device power distribution.
  • High-side load switching.

MAX891LEUA+ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the MAX891LEUA+?

2.7V to 5.5V.

What is the current limit of this device?

500mA.

What is the typical on-resistance?

0.12Ω.

What is the quiescent current consumption?

13µA when the switch is on and 0.1µA when off.

What is the operating temperature range?

-40°C to +85°C.

What package is the MAX891LEUA+ available in?

8-uMAX/uSOP surface-mount package.

What fault protection features does it include?

Adjustable current limiting and over-temperature protection.

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