MAX757CSA+ by Analog Devices

3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters


The MAX756/MAX757 are CMOS step-up DC-DC switching regulators for small, low input voltage or battery-powered systems. The MAX756 accepts a positive input voltage down to 0.7V and converts it to a higher pin-selectable output voltage of 3.3V or 5V. The MAX757 is an adjustable version that accepts an input voltage down to 0.7V and generates a higher adjustable output voltage in the range from 2.7V to 5.5V. Typical full-load efficiencies for the MAX756/MAX757 are greater than 87%. The MAX756/MAX757 provide three improvements over previous devices. Physical size is reduced-the high switching frequencies (up to 0.5MHz) made possible by MOSFET power transistors allow for tiny (< 5mm diameter) surface-mount magnetics. Efficiency is improved to 87% (10% better than with low-voltage regulators fabricated in bipolar technology). Supply current is reduced to 60µA by CMOS construction and a unique constant-off-time pulse-frequency modulation control scheme.

Where to Buy

Prices starting from US$2.24

Distributor Stock
Logo for Farnell
Farnell
from US$4.89
No stock
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Logo for Analog Devices
Analog Devices
from US$3.79
5,024
in stock
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Logo for CoreStaff
CoreStaff
from US$2.24
2
in stock
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Logo for element14
element14
from US$4.16
-
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Newark Electronics
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-
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Features

Operates Down to 0.7V Input Supply Voltage
87% Efficiency at 200mA
60µA Quiescent Current
20µA Shutdown Mode with Active Reference and LBI Detector
500kHz Maximum Switching Frequency
±1.5% Reference Tolerance Over Temperature
Low-Battery Detector (LBI/LBO)
8-Pin DIP and SO Packages

Specifications

VIN (V) (min) 0.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.7
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 0.3
Switch Type Internal
Output Adjust. Method Resistor
Power Good Signal Yes
Shutdown Mode Supply Current (µA) (typ) 0.02
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins PDIP/8SOIC (N)/8
BudgetaryPrice (See Notes) 2.29


MAX757CSA+ Semiconductors - ICs by Analog Devices

DC/DC CONV BOOST 500KHZ NSOIC-8

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

Specifications

Topology Boost (Step Up)
Input Voltage Min 700mV
Input Voltage Max 5.5V
No. of Outputs 1Outputs
DC / DC Converter IC Case NSOIC
No. of Pins 8Pins
Output Current 300mA
Output Voltage Min 2.7V
Output Voltage Max 5.5V
Switching Frequency 500kHz
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

3.3V/5V/Adjustable-Output, Ste | Analog Devices
DC/DC CONV, BOOST, 500KHZ, NSOIC-8 | Farnell
Dc/Dc Conv, Boost, 500Khz, Nsoic-8 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX757CSA+ ?

Additional datasheets, footprints and schematics for MAX757CSA+ are listed on our Part Details page. You can also find images and similar parts to MAX757CSA+ on this page.

What pricing and inventory information can I view?

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Is the MAX757CSA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX757CSA+ have stock available?

Authorised distributors including Analog Devices, CoreStaff, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX757CSA+ .

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