MAX757CPA+ 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$1.93

Distributor Stock
Logo for Farnell
Farnell
from US$3.20
83
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Analog Devices
from US$3.49
860
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Newark Electronics
from US$1.93
83
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element14
from US$3.53
83
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CoreStaff
from US$1.99
39
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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


MAX757CPA+ Amplifiers & Comparators by Analog Devices

IC DC/DC UP CONVERTER DIP8 757

Status: Unknown
Series: MAX756
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 DIP
No. of Pins 8Pins
Output Current 200mA
Output Voltage Min 2.7V
Output Voltage Max 5.5V
Switching Frequency 500kHz
Operating Temperature Max 70°C
Product Range MAX756
Automotive Qualification Standard -
MSL -
SVHC No SVHC (15-Jan-2018)
Adjustable Output Voltage Min 2.7V
Frequency 500kHz
IC Temperature Range Commercial
Operating Temperature Min 0°C
Operating Temperature Range 0°C to +70°C
Output Current Max 0.2A
Output Voltage 5.5V
Primary Input Voltage 2.5V
Switch Output Current Isw Max 1A
Termination Type Through Hole
Voltage Regulator Type Step Up (Boost)

Alternative Descriptions

3.3V/5V/Adjustable-Output, Ste | Analog Devices
Dc/Dc Conv, Fixed/Adj, Boost, 70Deg C | Newark Electronics
IC, DC/DC UP CONVERTER, DIP8, 757 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX757CPA+ ?

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Is the MAX757CPA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX757CPA+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and CoreStaff have stock available or on a lead time for MAX757CPA+ .

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