MAX1951ESA+ by Analog Devices

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


The MAX1951/MAX1952 high-efficiency, DC-to-DC step-down switching regulators deliver up to 2A of output current. The devices operate from an input voltage range of 2.6V to 5.5V and provide an output voltage from 0.8V to VIN, making the MAX1951/MAX1952 ideal for on-board postregulation applications. The MAX1951 total output error is less than 1% over load, line, and temperature. The MAX1951/MAX1952 operate at a fixed frequency of 1MHz with an efficiency of up to 94%. The high operating frequency minimizes the size of external components. Internal soft-start control circuitry reduces inrush current. Short-circuit and thermal-overload protection improve design reliability. The MAX1951 provides an adjustable output from 0.8V to VIN, whereas the MAX1952 has a preset output of 1.8V. Both devices are available in a space-saving 8-pin SO package. Learn More About PowerMindâ„¢

Where to Buy

Prices starting from US$1.85

Distributor Stock
Logo for Farnell
Farnell
from US$3.60
191
in stock
Buy Now
Logo for Analog Devices
Analog Devices
from US$3.64
1,645
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$4.34
191
in stock
Buy Now
Logo for element14
element14
from US$3.83
191
in stock
Buy Now
Logo for Chip One Stop
Chip One Stop
from US$1.85
136
in stock
Buy Now
Logo for CoreStaff
CoreStaff
from US$2.26
14
in stock
Buy Now
Logo for Schukat Electronic
Schukat Electronic
from US$2.32
10
in stock
Buy Now

Features

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 VIN (MAX1951)
Preset Output of 1.8V (1.5% Accuracy) (MAX1952)
Internal Digital Soft-Soft
Short-Circuit and Thermal-Overload Protection

Specifications

VIN (V) (min) 2.6
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 5
IOUT1 (A) (max) 2
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 1000
Package/Pins SOIC (N)/8
BudgetaryPrice (See Notes) 2.59


MAX1951ESA+ Semiconductors - ICs by Analog Devices

REG PWM STEP DOWN DC-DC SMD 1951

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Topology Buck (Step Down)
Input Voltage Min 2.6V
Input Voltage Max 5.5V
No. of Outputs 1Outputs
DC / DC Converter IC Case SOIC
No. of Pins 8Pins
Output Current 2A
Output Voltage Min 800mV
Output Voltage Max 5.5V
Switching Frequency 1.1MHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Accuracy % 1%
Adjustable Output Voltage Max 5V
Adjustable Output Voltage Min 0.8V
Base Number 1951
Frequency 1MHz
IC Temperature Range Extended
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +80°C
Output Current Max 2A
Output Voltage 5.5V
Primary Input Voltage 3.3V
Supply Voltage Min 2.6V
Termination Type Surface Mount Device
Voltage Regulator Type DC-to-DC Step Down Switching

Alternative Descriptions

1MHz, All-Ceramic, 2.6V to 5.5 | Analog Devices
Reg, Pwm Step Down Dc-Dc, Smd, 1951 | Newark Electronics
REG, PWM STEP DOWN DC-DC, SMD, 1951 | element14
Buck Switch. Reg Adj 2A 2,6-5,5Vi SO8 | Schukat Electronic

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1951ESA+ ?

Additional datasheets, footprints and schematics for MAX1951ESA+ are listed on our Part Details page. You can also find images and similar parts to MAX1951ESA+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX1951ESA+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX1951ESA+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX1951ESA+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX1951ESA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1951ESA+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Chip One Stop have stock available or on a lead time for MAX1951ESA+ .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX1951ESA+ often in real-time on the comparison pages.

What if I can't find stock of MAX1951ESA+ ?

You can fill out our help required form which you can use to request a quote for MAX1951ESA+ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay