MAX1832EUT#TG16 Maxim Integrated Products, MAX1832EUT#TG16 Datasheet

Page 1

... GND SOT23 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Reverse Battery Protection ♦ Reverse Battery Protection for DC-DC Converter and Load ♦ 90% Efficiency ♦ No External Diode or FETs Needed ♦ ...

Page 2

High-Efficiency Step-Up Converters with Reverse Battery Protection ABSOLUTE MAXIMUM RATINGS BATT GND.........................................................- OUT ....................................................................-6V to +1V SHDN to GND..............................................- OUT, FB, RST TO GND ............................................-0.3V to +6V LX Current ................................................................................1A Continuous Power ...

Page 3

High-Efficiency Step-Up Converters with ELECTRICAL CHARACTERISTICS (continued +1.5V +3.3V, V SHDN OUT BATT noted.) (Note 1) PARAMETER SYMBOL Reverse Battery Current into OUT Quiescent Current into BATT Shutdown Current into BATT Reverse Battery Current into BATT ...

Page 4

High-Efficiency Step-Up Converters with Reverse Battery Protection (V = +3.3V +2V, unless otherwise noted.) (Figure 1) OUT BATT EFFICIENCY vs. LOAD CURRENT (V = 5.0V) OUT +3.3V 90 BATT +2.7V BATT ...

Page 5

High-Efficiency Step-Up Converters with Reverse Battery Protection in a SOT23 +3.3V +2V, unless otherwise noted.) (Figure 1) OUT BATT ON/OFF RESPONSE 2ms/div 2.0V 22Ω, SHDN BATT LOAD V = 3.3V ...

Page 6

High-Efficiency Step-Up Converters with Reverse Battery Protection PIN MAX1832 MAX1833 MAX1834 MAX1835 — — 6 +1.5V TO +3.3V BATTERY 10µF 10µH BATT LX OUT R4 MAX1833 220kΩ MAX1835 RST ...

Page 7

High-Efficiency Step-Up Converters with Detailed Description The MAX1832–MAX1835 compact, high-efficiency step-up converters feature 4µA quiescent supply cur- rent to ensure the highest possible efficiency over a wide load range. With a minimum +1.5V input voltage, these devices are well suited ...

Page 8

High-Efficiency Step-Up Converters with Reverse Battery Protection OUT SHDN FB ERROR COMPARATOR 1.228V Figure 2. MAX1832/MAX1834 Simplified Functional Diagram OUT ERROR COMPARATOR RST RESET N SHDN Figure 3. MAX1833/MAX1835 Simplified Functional Diagram 8 _______________________________________________________________________________________ ZERO- CROSSING MAX1832 DETECTOR MAX1834 STARTUP ...

Page 9

High-Efficiency Step-Up Converters with sometimes cause false shutdowns. To minimize the effect of ripple, connect a low-value capacitor (C1) from SHDN to GND to filter out input noise. Select a C1 value such ✕ that the R4 C1 time constant ...

Page 10

High-Efficiency Step-Up Converters with Reverse Battery Protection (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 10 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, SOT 6L BODY 1 ...

Page 11

High-Efficiency Step-Up Converters with (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) D PIN 1 INDEX AREA -DRAWING NOT TO SCALE- ______________________________________________________________________________________ Reverse Battery Protection ...

Page 12

... 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...