MAX1951

PRODUCTION

1MHz, All-Ceramic, 2.6V to 5.5V Input, 2A PWM Step-Down DC-to-DC Regulators

1MHz, All-Ceramic, 2.6V to 5.5V Input, 2A PWM Step-Down DC-DC Regulators Require Only 10µF Ceramic Capacitor

Data Sheet (Rev. 2) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.05

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Part Details

Compact 0.385in² Circuit Footprint
10µF Ceramic Input and Output Capacitors, 2µH Inductor for 1.5A Output
Efficiency Up to 94%
1% Output Accuracy Over Load, Line, and Temperature (MAX1951, Up to 1.5A)
Guaranteed 2A Output Current
Operate from 2.6V to 5.5V Supply
Adjustable Output from 0.8V to V_IN (MAX1951)
Preset Output of 1.8V (1.5% Accuracy) (MAX1952)
Internal Digital Soft-Soft
Short-Circuit and Thermal-Overload Protection

Part Models: 2
1ku List Price: Starting From $3.05

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX1951ESA+	8-SOIC_N-150_MIL	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX1951ESA+T	8-SOIC_N-150_MIL	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Internal Power Switch Buck Regulators 1
MAX1945	PRODUCTION	1MHz, 1% Accurate, 6A Internal Switch Step-Down Regulators

Evaluation Kits

Evaluation Kit for the MAX1951, MAX1952

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Features and Benefits

2.6V to 5.5V Input Range
Output Voltage
- Adjustable 0.8V to V_IN (MAX1951)
- Fixed 1.8V (MAX1952)
1.5A Output Current
Tiny Circuit Footprint: 0.55 x 0.7in²
Low-Profile Components: < 3mm
All Ceramic Design
Fixed 1MHz Switching Frequency
No External Schottky Diode Required
Surface-Mount Construction
Fully Assembled and Tested

Product Details

The MAX1951 evaluation kit (EV kit) provides a 1.5V output voltage from a 2.6V to 5.5V input source.The output voltage can be adjusted from 0.8V to V_IN. The MAX1951 delivers up to 1.5A output current. The MAX1951 is a fixed-frequency, pulse-width modulated (PWM) step-down switching regulator with internal synchronous-rectifier. Operation at 1MHz minimizes external components.

The MAX1951 EV kit can also be used to evaluate other output voltages by changing the feedback resistors R2 and R3. The EV kit can also be used to evaluate the MAX1952, which is a 1.5A PWM step-down switching regulator with a 1.8V fixed output voltage.

Applications

ASIC/DSP/µP/FPGA Core and I/O Voltages
Cell Phone Base Stations
Networking and Telecommunications
Set-Top Boxes

Latest Discussions

1 Years Ago

Part Details

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1