MAX1902EAI+T The MAX1902EAI+T is a buck-topology, step-down, switch-mode power supply controller designed for battery-powered systems. It features dual adjustable outputs and a 12V linear regulator.
Mfr Part #:

MAX1902EAI+T

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX1902EAI+T is a buck-topology, step-down, switch-mode power supply controller designed for battery-powered systems. It features dual adjustable outputs and a 12V linear regulator.
Total Stock: 9,148 pcs
$ Price Range: $0.75

MAX1902EAI+T Available from 1 distributor

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MAX1902EAI+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Input Range
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Operating Temperature
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Quiescent Current
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MAX1902EAI+T Description

Short technical summary and product information.

The Analog Devices MAX1902EAI+T is a high-performance, buck-topology, step-down, switch-mode power supply controller. It is designed to generate logic-supply voltages in battery-powered systems, making it suitable for notebook computers and mobile communicators.

 

This device offers dual adjustable outputs ranging from 2.5V to 5.5V, along with a 12V/120mA linear regulator. It incorporates features such as on-board power-up sequencing, power-good signaling with delay, digital soft-start, and internal frequency-compensation networks. The MAX1902EAI+T achieves up to 97% efficiency through synchronous rectification and Maxim's proprietary Idle Mode control scheme, extending battery life.

 

Operating at a low-noise, fixed frequency of 333kHz or 500kHz, this controller reduces RF interference in sensitive applications. It is available in a 28-SSOP surface-mount package and operates within a temperature range of -40°C to 85°C.

MAX1902EAI+T Quick Information

Product Type: Power Supply Controller
Series: MAX1901/MAX1902/MAX1904
Canonical Name: MAX1902EAI+T Buck-Topology Step-Down Switch-Mode Power Supply Controller
Subcategory: Special Purpose Regulators

MAX1902EAI+T Compliance

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

MAX1902EAI+T Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

MAX1902EAI+T Features

  • Generates logic-supply voltages in battery-powered systems.
  • Dual adjustable outputs from 2.5V to 5.5V.
  • Includes a 12V/120mA linear regulator.
  • Achieves up to 97% efficiency.
  • Operates at 333kHz/500kHz fixed frequency.

MAX1902EAI+T Applications

  • Ideal for notebook computers.
  • Suitable for mobile communicators.
  • Used in PDAs.
  • Desktop CPU local DC-DC converters.

MAX1902EAI+T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the MAX1902EAI+T?

-40°C to 85°C.

What package is the MAX1902EAI+T available in?

28-SSOP (0.209", 5.30mm Width).

What are the output voltages of the MAX1902EAI+T?

It has dual adjustable outputs from 2.5V to 5.5V, fixed 5.0V and 3.3V modes, and a 12V linear regulator.

What is the input voltage range of the MAX1902EAI+T?

4.2V to 30V.

What is the efficiency of the MAX1902EAI+T?

Up to 97% maximum, and greater than 80% over a 1000:1 load current range.

What is the switching frequency of the MAX1902EAI+T?

Selectable 333kHz or 500kHz low-noise fixed-frequency operation.

What is the quiescent power consumption of the MAX1902EAI+T?

Typically 2.5mW with both SMPSs on at 12V input.

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