Overview
Features and Benefits
- Reverse Battery Protection for DC-DC Converter and Load
- Up to 90% Efficiency
- No External Diode or FETs Needed
- Internal Synchronous Rectifier
- 4µA Quiescent Current
- <1µA Shutdown Supply Current
- +1.5V to +5.5V Input Voltage Range
- Accurate active-low SHDN Threshold for Low-Battery Cutoff
- BATT Connected to OUT in Shutdown for Backup Power (MAX1832/MAX1833)
- RST-bar Output (MAX1833/MAX1835)
- Fixed 3.3V/3.0V Output Voltage
- Adjustable Output Voltage (MAX1832/MAX1834)
- Up to 150mA Output Current
- Tiny 6-Pin SOT23 Package
- Tiny 6-Pin Thin QFN Package (MAX1833ETT30)
Product Details
The MAX1832-MAX1835 are high-efficiency step-up converters with complete reverse battery protection that protects the device and the load when the battery is reversed. They feature a built-in synchronous rectifier, which allows for over 90% efficiency and reduces size and cost by eliminating the need for an external Schottky diode.
These step-up converters operate from a +1.5V to +5.5V input voltage range and deliver up to 150mA of load current. The MAX1833EUT/MAX1835EUT (SOT devices) have a fixed 3.3V output voltage. The MAX1833ETT30 (TDFN device) has a fixed 3.0V output voltage. The MAX1832/MAX1834 have adjustable outputs from +2V to +5.5V. In shutdown, the MAX1832/MAX1833 connect the battery input to the voltage output, allowing the input battery to be used as a backup or real-time clock supply when the converter is off (see Selector Guide).
MAX183_EUT devices are available in a miniature 6-pin SOT23 package. The MAX1833ETT30 is available in a 3mm x 3mm thin DFN package. The MAX1832EVKIT is available to speed designs.
Applications
- Battery Backup
- Cordless Phones
- Digital Cameras
- Handheld Instruments
- Local 3.3V to 5V Supplies
- Medical Diagnostic Equipment
- Pagers
- PC Cards
- Remote Wireless Transmitters
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX1835EUT+ | Material Declaration | Reliability Data | 6-SOT_23-N/A | |
| MAX1835EUT+T | Material Declaration | Reliability Data | 6-SOT_23-N/A | |
| Wafer Fabrication Data |
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