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MAX651CSA The MAX651CSA from Analog Devices is a step-down DC-DC switching controller designed for high efficiency. It operates with an input voltage range of 4V to 16.5V and features a preset 3.3V output.
Mfr Part #:

MAX651CSA

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX651CSA from Analog Devices is a step-down DC-DC switching controller designed for high efficiency. It operates with an input voltage range of 4V to 16.5V and features a preset 3.3V output.
✓ Total Stock: 55 pcs
$ Price Range: $0.78

MAX651CSA Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Hybrid Electronics ✓
Non-Authorised Inventory information
55 pcs
On Request
55 pcs On Request 1 On Request On Request 95 On Request On Request
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MAX651CSA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Efficiency
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Power
Output Type
Output Voltage
Quiescent Current
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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MAX651CSA Description

Short technical summary and product information.

The MAX651CSA is a BiCMOS step-down DC-DC switching controller from Analog Devices, offering high efficiency over a wide load current range. It utilizes a unique current-limited pulse-frequency-modulated (PFM) control scheme, providing benefits of PWM converters while consuming only 100µA of supply current.

 

This controller accepts input voltages up to 16.5V and features a preset output voltage of 3.3V, though it can be adjusted from 1.5V to the input voltage using two resistors. It boasts a high switching frequency of up to 300kHz, allowing for miniature external components. The device is designed to drive external P-channel MOSFETs for loads greater than 10W.

 

Key features include over 90% efficiency across various loads, over 12.5W output power capability, and a low quiescent supply current. The MAX651CSA is suitable for applications such as 5V-to-3.3V Green PC applications, high-efficiency step-down regulation, minimum-component DC-DC converters, and battery-powered applications.

 

The MAX651CSA is available in a surface mount 8-SOIC package, operating within a temperature range of 0°C to 70°C.

MAX651CSA Quick Information

Product Type: DC DC Switching Controller
Canonical Name: MAX651CSA Step-Down DC-DC Switching Controller
Subcategory: Power Management (PMIC)

MAX651CSA Compliance

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

MAX651CSA Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

MAX651CSA Features

  • High efficiency over wide load range.
  • Low 100µA max quiescent supply current.
  • Input voltage up to 16.5V.
  • Preset 3.3V output voltage.
  • Up to 300kHz switching frequency.

MAX651CSA Applications

  • Ideal for 5V-to-3.3V conversions.
  • Suitable for battery-powered devices.
  • Enables minimum-component designs.
  • Used for high-efficiency regulation.

MAX651CSA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the MAX651CSA?

The MAX651CSA operates from 4V to 16.5V.

What is the output voltage of the MAX651CSA?

The MAX651CSA has a preset output voltage of 3.3V.

What is the switching frequency of the MAX651CSA?

The switching frequency is up to 300kHz.

What is the operating temperature range of the MAX651CSA?

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

What package does the MAX651CSA come in?

The MAX651CSA is available in an 8-SOIC surface-mount package.

What is the efficiency of the MAX651CSA?

The efficiency is more than 90% for loads from 10mA to 1.5A.

Does the MAX651CSA have an enable feature?

Yes, the MAX651CSA includes an enable control feature.

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