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MAX1649ESA The MAX1649ESA is a step-down DC-DC switching controller from Analog Devices. It offers high efficiency and a compact 8-SOIC package.
Mfr Part #:

MAX1649ESA

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX1649ESA is a step-down DC-DC switching controller from Analog Devices. It offers high efficiency and a compact 8-SOIC package.
✓ Total Stock: 2,336 pcs
$ Price Range: $0.78

MAX1649ESA 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
2,336 pcs
On Request
2336 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.

MAX1649ESA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Efficiency
Frequency
Function
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Phases
Output Power
Output Type
Output Voltage
Quiescent Current
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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MAX1649ESA Description

Short technical summary and product information.

The MAX1649ESA is a BiCMOS, step-down DC-DC switching controller designed for high efficiency over a wide load range. It utilizes a unique current-limited pulse-frequency-modulated (PFM) control scheme, providing benefits of PWM converters with significantly lower supply current.

 

Key features include an input voltage range of 3V to 16V, a maximum duty cycle of 96.5%, and a switching frequency up to 300kHz, allowing for the use of miniature external components. The device offers dropout performance down to 300mV at 500mA and a maximum quiescent supply current of 100µA.

 

This controller drives external P-channel MOSFETs for loads greater than 12.5W. It is suitable for battery-powered applications requiring high-efficiency step-down regulation, such as PDAs and 5V-to-3.3V green PC applications.

 

The MAX1649ESA is available in an 8-SOIC package and is designed for surface mount applications. It operates within an ambient temperature range of -40°C to 85°C.

MAX1649ESA Quick Information

Product Type: DC DC Switching Controller
Series: MAX1649
Canonical Name: MAX1649ESA Step-Down DC-DC Switching Controller
Subcategory: PMIC

MAX1649ESA Compliance

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

MAX1649ESA Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

MAX1649ESA Features

  • High efficiency step-down DC-DC controller.
  • Wide 3V to 16V input voltage range.
  • Up to 96.5% duty cycle capability.
  • Low 100µA max quiescent supply current.
  • Compact 8-SOIC surface mount package.

MAX1649ESA Applications

  • Ideal for battery-powered devices.
  • Suitable for PDAs and mobile electronics.
  • Used in 5V to 3.3V power conversions.
  • Enables high-efficiency regulation.

MAX1649ESA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the MAX1649ESA?

3V to 16V.

What output voltages are available?

Adjustable, 5V, and 3.3V.

What is the maximum output current?

2.5A.

What is the efficiency of the MAX1649ESA?

More than 90% at 10mA to 1.5A loads.

What is the switching frequency?

Up to 300kHz.

What package is the MAX1649ESA available in?

8-SOIC (0.154 inch, 3.90mm width).

What is the operating temperature range?

-40°C to +85°C.

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