MAX744AEWE+ by Analog Devices

5V, Step-Down, Current-Mode PWM DC-DC Converters


The MAX730A/MAX738A/MAX744A are 5V-output CMOS, step-down switching regulators. The MAX738A/MAX744A accept inputs from 6V to 16V and deliver 750mA. The MAX744A guarantees 500mA load capability for inputs above 6V and has tighter oscillator frequency limits for low-noise (radio) applications. The MAX730A accepts inputs between 5.2V and 11V and delivers 450mA for inputs above 6V. Typical efficiencies are 85% to 96%. Quiescent supply current is 1.7mA and only 6µA in shutdown. Pulse-width modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±5% over line, load, and temperature variations. Fixed-frequency switching allows easy filtering of output ripple and noise, as well as the use of small external components. These regulators require only a single inductor value to work in most applications, so no inductor design is necessary. The MAX730A/MAX738A/MAX744A also feature cycle-by-cycle current limiting, overcurrent limiting, undervoltage lockout, and programmable soft-start protection.

Where to Buy

Prices starting from US$4.51

Distributor Stock
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Farnell
from US$9.35
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Analog Devices
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element14
from US$6.48
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Avnet Asia
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Newark Electronics
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Features

750mA Load Currents (MAX738A/MAX744A)
High-Frequency, Current-Mode PWM
159kHz to 212.5kHz Guaranteed Oscillator Frequency Limits (MAX744A)
85% to 96% Efficiencies
1.7mA Quiescent Current
6µA Shutdown Supply Current
Single Preselected Inductor Value, No Component Design Required
Overcurrent, Soft-Start, and Undervoltage Lockout Protection
Cycle-by-Cycle Current Limiting
8-Pin DIP/SO Packages (MAX730A)

Specifications

VIN (V) (min) 6
VIN (V) (max) 16
VOUT1 (V) (min) 5
VOUT1 (V) (max) 5
IOUT1 (A) (max) 0.75
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method PresetResistor
# DC-DC Outputs 1
Switching Frequency (kHz) 212.5
Package/Pins PDIP/8SOIC (W)/16
BudgetaryPrice (See Notes) 3.76


MAX744AEWE+ Semiconductors - ICs by Analog Devices

DC/DC CONV BUCK 185KHZ WSOIC-16

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

Specifications

Topology Buck (Step Down)
Input Voltage Min 6V
Input Voltage Max 16V
DC / DC Converter IC Case WSOIC
No. of Pins 16Pins
Output Current 500mA
Output Voltage Nom. 5V
Switching Frequency 185kHz
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)

Alternative Descriptions

5V, Step-Down, Current-Mode PW | Analog Devices
Conv DC-DC Single Step Down 6V to 16V 16-Pin SOIC W | Avnet Asia
DC/DC CONV, BUCK, 185KHZ, WSOIC-16 | Farnell
Dc/Dc Conv, Buck, 185Khz, Wsoic-16 | Newark Electronics

Frequently Asked Questions

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Is the MAX744AEWE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX744AEWE+ have stock available?

Authorised distributors including Analog Devices, element14, Avnet Asia, Farnell and Newark Electronics have stock available or on a lead time for MAX744AEWE+ .

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