Product Summary

The MAX856CSA is a high-efficiency, CMOS, step-up, DC-DC switching regulator for small, low input voltage or battery-powered systems. The MAX856CSA accepts 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 applications of the MAX856CSA are 3.3V to 5V Step-Up Conversion, Palmtop Computers, Portable Data-Collection Equipment, Personal Data Communicators/Computers, Medical Instrumentation, 2-Cell & 3-Cell Battery-Operated Equipment, Glucose Meters.

Parametrics

MAX856CSA absolute maximum ratings: (1)Supply Voltage (OUT to GND):-0.3V, +7V; (2)Switch Voltage (LX to GND):-0.3V, +7V; (3)SHDN, LBO to GND:-0.3V, +7V; (4)LBI, REF, 3/5, FB to GND:-0.3V, (VOUT + 0.3V); (5)Reference Current (IREF):2.5mA; (6)Junction Temperature:+150℃; (7)Storage Temperature Range:-65℃ to +160℃; (8)Lead Temperature (soldering, 10sec):+300℃.

Features

MAX856CSA features: (1)0.8V to 6.0V Input Supply Voltage; (2)0.8V Typ Start-Up Supply Voltage; (3)85% Efficiency at 100mA; (4)25μA Quiescent Current; (5)1μA Shutdown Mode; (6)125mA and 500mA Switch-Current Limits Permit Use of Low-Cost Inductors; (7)Up to 500kHz Switching Frequency; (8)±1.5% Reference Tolerance Over Temperature; (9)Low-Battery Detector (LBI/LBO); (10)8-Pin SO and μMAX Packages.

Diagrams

MAX856CSA circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MAX856CSA
MAX856CSA
Maxim Integrated Products
DC/DC Switching Converters 3.3/5/AdjV Step-Up DC/DC Converter
Data Sheet
Negotiable 
MAX856CSA+
MAX856CSA+
Maxim Integrated Products
DC/DC Switching Converters 3.3/5/AdjV Step-Up DC/DC Converter
Data Sheet
0-1: $2.79
1-25: $1.87
25-50: $1.36
50-100: $1.34
MAX856CSA+T
MAX856CSA+T
Maxim Integrated Products
DC/DC Switching Converters 3.3/5/AdjV Step-Up DC/DC Converter
Data Sheet
0-2080: $1.18
2080-2500: $1.18
MAX856CSA-T
MAX856CSA-T
Maxim Integrated Products
DC/DC Switching Converters 3.3/5/AdjV Step-Up DC/DC Converter
Data Sheet
Negotiable