MAX856CSA+ by Analog Devices

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


The MAX856-MAX859 are high-efficiency, CMOS, step-up, DC-DC switching regulators for small, low input voltage or battery-powered systems. The MAX856/MAX858 accept a positive input voltage between 0.8V and VOUT and convert it to a higher, pin-selectable output voltage of 3.3V or 5V. The MAX857/MAX859 adjustable versions accept 0.8V to 6.0V input voltages and generate higher adjustable output voltages in the 2.7V to 6.0V range. Typical efficiencies are greater than 85%. Typical quiescent supply current is 25µA (1µA in shutdown). The MAX856-MAX859 combine ultra-low quiescent supply current and high efficiency to give maximum battery life. An internal MOSFET power transistor permits high switching frequencies. This benefit, combined with internally set peak inductor current limits, permits the use of small, low-cost inductors. The MAX856/MAX857 have a 500mA peak inductor current limit. The MAX858/MAX859 have a 125mA peak inductor current limit.

Where to Buy

Prices starting from US$2.48

Distributor Stock
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RS
from US$4.70
8
in stock
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Analog Devices
from US$4.06
10,744
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Newark Electronics
from US$4.21
173
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element14
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Farnell
from US$3.89
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Transfer Multisort Elektronik
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CoreStaff
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Features

0.8V to 6.0V Input Supply Voltage
0.8V Typ Start-Up Supply Voltage
85% Efficiency at 100mA
25µA Quiescent Current
1µA Shutdown Mode
125mA and 500mA Switch-Current Limits Permit Use of Low-Cost Inductors
Up to 500kHz Switching Frequency
±1.5% Reference Tolerance Over Temperature
Low-Battery Detector (LBI/LBO)
8-Pin SO and µMax Packages

Specifications

VIN (V) (min) 0.8
VIN (V) (max) 6
VOUT1 (V) (min) 3.3
VOUT1 (V) (max) 5
IOUT1 (A) (max) 0.15
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method Preset
Power Good Signal Yes
IQ (mA) (typ) 0.025
Shutdown Mode Supply Current (µA) (typ) 1
Shutdown Mode Supply Current (µA) (max) 5
# DC-DC Outputs 1
Switching Frequency (kHz) 500
Package/Pins SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 2.65


MAX856CSA+ Semiconductors - ICs by Analog Devices

DC/DC CONVERTER 3V3/5V SOIC8 856

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

Specifications

Topology Boost (Step Up)
Input Voltage Min 800mV
Input Voltage Max 6V
No. of Outputs 1Outputs
DC / DC Converter IC Case SOIC
No. of Pins 8Pins
Output Current 100mA
Output Voltage Min 800mV
Output Voltage Max 6V
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)
Base Number 856
Frequency 500kHz
Operating Temperature Min 0°C
Output Voltage 3.3V
Power Supply IC Type DC / DC Converter
Primary Input Voltage 0.8V
Supply Voltage Min 0.8V
Voltage Regulator Type Switching Step Up (Boost)

Alternative Descriptions

3.3V/5V or Adjustable Output, | Analog Devices
Dc/Dc Converter, 3V3/5V, Soic8, 856 | Newark Electronics
DC/DC CONVERTER, 3V3/5V, SOIC8, 856 | element14
MAX856CSA+, Boost Converters | RS
IC: PMIC | Transfer Multisort Elektronik

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX856CSA+ ?

Additional datasheets, footprints and schematics for MAX856CSA+ are listed on our Part Details page. You can also find images and similar parts to MAX856CSA+ on this page.

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Is the MAX856CSA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX856CSA+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and RS have stock available or on a lead time for MAX856CSA+ .

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