MAX8574EUT+T Maxim Integrated Products, MAX8574EUT+T Datasheet
![no-image](/images/manufacturer_photos/0/4/417/maxim_integrated_products_sml.jpg)
MAX8574EUT+T
Specifications of MAX8574EUT+T
Related parts for MAX8574EUT+T
MAX8574EUT+T Summary of contents
Page 1
... True Shutdown ♦ 87% Efficiency ♦ 800kHz Switching Frequency ♦ Small, 6-Pin SOT23 and µDFN (MAX8570 Only) Packages PART MAX8570ELT+T MAX8570EUT+T MAX8571EUT+T MAX8572EUT+T MAX8573EUT+T MAX8574EUT+T MAX8575EUT+T + Denotes a lead(Pb)-free RoHS-compliant package Tape and reel. Applications PART MAX8570 MAX8571 MAX8572 MAX8573 MAX8574 ...
Page 2
High-Efficiency LCD Boost with True Shutdown ABSOLUTE MAXIMUM RATINGS , SHDN to GND ..................................................-0. GND .................................................-0. GND (MAX8570/MAX8571/ MAX8574)...............................................-0. OUT to GND (MAX8572/MAX8573/MAX8575) .......-0.3V to +30V LX to ...
Page 3
ELECTRICAL CHARACTERISTICS (continued 3.6V, SW open 1.3V (MAX8570/MAX8571/MAX8574 SHDN CC FB -40°C to +85°C, unless otherwise noted. Typical values are at T PARAMETER PMOS Current Limit ...
Page 4
High-Efficiency LCD Boost with True Shutdown (MAX8571 3.6V 18V, Circuit of Figure OUT EFFICIENCY vs. BATTERY VOLTAGE (FIGURE 4) 100 5mA LOAD 90 80 1mA LOAD 3.6V CC ...
Page 5
V = 3.6V 18V, Circuit of Figure OUT LOAD TRANSIENT V OUT I OUT 100µs/div PIN MAX8570/ MAX8572/ MAX8570 MAX8571/ MAX8573/ (µDFN) MAX8574 MAX8575 (SOT23) (SOT23 — — — ...
Page 6
High-Efficiency LCD Boost with True Shutdown V CC SHDN THERMAL SHUTDOWN MAX8570– MAX8575 Figure 1. Functional Diagram L1 22μ 4.7μF MAX8570 10pF MAX8571 V = 2.7V TO 5.5V CC MAX8574 1μF ON GND ...
Page 7
Detailed Description The MAX8570 family of compact, step-up DC-DC con- verters operates from a 2.7V to 5.5V supply. Consuming only 25µA of supply current, these ICs include an inter- nal MOSFET switch with a low on-resistance. A true- shutdown feature ...
Page 8
High-Efficiency LCD Boost with True Shutdown Table 1. Protection Features COMMON APPLICATION FAULTS OUT to FB resistor missing or disconnected. Output cap missing and FB open. FB shorted to GND. Diode missing or disconnected. Diode reverse polarity. FB node open. ...
Page 9
For the MAX8570/MAX8571/MAX8574 a feed-forward capacitor (C4 in Figures 2 and 4) connected from the output to FB improves stability over a wide range of battery voltages. A 10pF capacitor is recommended for the MAX8571 and MAX8574. A 10pF to ...
Page 10
High-Efficiency LCD Boost with True Shutdown TOP VIEW + SHDN 1 GND Chip Information PROCESS: BiCMOS 10 ______________________________________________________________________________________ Pin Configurations (continued MAX8570 μDFN For the latest package outline information and ...
Page 11
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2010 Maxim Integrated Products ...