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MAX639CSA The MAX639CSA from Analog Devices / Maxim Integrated is a step-down DC-DC switching regulator. It offers high efficiency over a wide range of load currents, delivering up to 225mA.
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MAX639CSA

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX639CSA from Analog Devices / Maxim Integrated is a step-down DC-DC switching regulator. It offers high efficiency over a wide range of load currents, delivering up to 225mA.
✓ Total Stock: 3,600 pcs
$ Price Range: $1.08

MAX639CSA Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,600 pcs
On Request
3600 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX639CSA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Quiescent Current
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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MAX639CSA Description

Short technical summary and product information.

The MAX639CSA is a step-down switching regulator from Analog Devices / Maxim Integrated, designed for high efficiency across various load currents, providing up to 225mA.

 

This device features a current-limiting pulse-frequency-modulated (PFM) control scheme, offering the benefits of PWM converters while consuming only 10µA of supply current. The input voltage range is 4V to 11.5V. The output voltage can be preset to 5V (for MAX639) or adjusted by the user to any voltage from 1.3V to the input voltage.

 

With an internal 1A power MOSFET switch, the MAX639CSA is suitable for minimum-component, low- and medium-power applications. It is available in a surface-mount 8-SOIC package, operating within a temperature range of 0°C to 70°C.

 

Key applications include 9V battery to 5V conversion, high-efficiency linear regulator replacement, portable instruments, and 5V-to-3.3V converters.

MAX639CSA Quick Information

Product Type: DC-DC Switching Regulator
Canonical Name: MAX639CSA Step-Down DC-DC Converter
Subcategory: Step-Down

MAX639CSA Compliance

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

MAX639CSA Estimated Pricing

Qty Low High
1+ $1.08 $1.08

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

MAX639CSA Features

  • High efficiency for wide load currents.
  • Low 10µA quiescent supply current.
  • Output currents up to 225mA.
  • Preset or adjustable output voltage.
  • Internal 1A power MOSFET switch.

MAX639CSA Applications

  • 9V battery to 5V conversion.
  • High-efficiency linear regulator replacement.
  • Portable instruments and terminals.
  • 5V-to-3.3V converters.

MAX639CSA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the MAX639CSA?

The input voltage range is 4V to 11.5V.

What is the maximum output current?

The maximum output current is 225mA.

What output voltage options are available?

Fixed 5V preset or adjustable from 1.3V up to the input voltage.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What is the package type?

8-SOIC surface-mount package (0.154", 3.90mm Width).

What is the typical quiescent current?

Typical quiescent current is 10µA.

Is the MAX639CSA a step-up or step-down regulator?

It is a step-down (buck) regulator.

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