Overview
Features and Benefits
- Up to 90% Efficiency
- No External Diode or FETs Needed
- 1.5µA Quiescent Supply Current
- 0.1µA Logic-Controlled Shutdown
- ±1% Output Voltage Accuracy
- Fixed Output Voltage (MAX1724) or Adjustable Output Voltage (MAX1722/MAX1723)
- Up to 150mA Output Current
- 0.8V to 5.5V Input Voltage Range
- 0.91V Guaranteed Startup (MAX1722/MAX1724)
- Internal EMI Suppression (MAX1722/MAX1724)
- TSOT Package (0.9mm typ Height)
- µDFN Package (2mm x 2mm x 0.75mm)
Product Details
The MAX1722/MAX1723/MAX1724 compact, high-efficiency, step-up DC-DC converters are available in tiny, 5-pin TSOT packages. They feature an extremely low 1.5µA quiescent supply current to ensure the highest possible light-load efficiency. Optimized for operation from one to two alkaline or nickel-metal-hydride (NiMH) cells, or a single Li+ cell, these devices are ideal for applications where extremely low quiescent current and ultra-small size are critical.
Built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode. All three devices feature a 0.5Ω N-channel power switch. The MAX1722/MAX1724 also feature proprietary noise-reduction circuitry, which suppresses electromagnetic interference (EMI) caused by the inductor in many step-up applications. The family offers different combinations of fixed or adjustable outputs, shutdown, and EMI reduction (see Selector Guide).
Applications
- Digital Still Cameras
- Low-Power Handheld Instruments
- MP3 Players
- Pagers
- PDAs and Other Handheld Devices
- Personal Medical Devices
- Remote Controls
- Remote Wireless Transmitters
- Single-Cell Battery-Powered Devices
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 |
|---|---|---|---|---|
| MAX1724ELT27+ | Material Declaration | Reliability Data | Micro Dual Flatpack No Lead | |
| MAX1724ELT27+T | Material Declaration | Reliability Data | Micro Dual Flatpack No Lead | |
| MAX1724ELT50+ | Material Declaration | Reliability Data | Micro Dual Flatpack No Lead | |
| MAX1724ELT50+T | Material Declaration | Reliability Data | Micro Dual Flatpack No Lead | |
| MAX1724EZK27+ | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK27+T | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK30+ | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK30+T | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK33+ | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK33+T | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK50+ | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| MAX1724EZK50+T | Material Declaration | Reliability Data | 5-TSOT-N/A | |
| Wafer Fabrication Data |
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