LTC3406AB
PRODUCTION1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT
- Part Models
- 2
- 1ku List Price
- Starting From $2.80
Overview
- High Efficiency: Up to 96%
- 600mA Output Current
- 2.5V to 5.5V Input Voltage Range
- 1.5MHz Constant Frequency Operation
- No Schottky Diode Required
- Low Dropout Operation: 100% Duty Cycle
- Low Quiescent Current: 200µA
- ±2% 0.6V Reference
- Shutdown Mode Draws <1µA Supply Current
- Internal Soft-Start Limits Inrush Current
- Current Mode Operation for Excellent Line and Load Transient Response
- Overtemperature Protected
- Low Profile (1mm) ThinSOT™ Package
The LTC3406AB is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current with no load is 200µA,dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3406AB ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery run time in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Refer to LTC3406A for applications that require Burst Mode operation.
Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors.The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode.Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3406AB is availablein a low profile (1mm) ThinSOT package.
| Vout | Fsw | Features | |
| LTC3406 | Adj. | 1.5MHz | Burst Mode |
| LTC3406-1.2 | 1.2V | 1.5MHz | Burst Mode |
| LTC3406-1.5 | 1.5V | 1.5MHz | Burst Mode |
| LTC3406-1.8 | 1.8V | 1.5MHz | Burst Mode |
| LTC3406B | Adj. | 1.5MHz | Burst Mode Disabled |
| LTC3406B-1.2 | 1.2V | 1.5MHz | Burst Mode Disabled |
| LTC3406B-2 | Adj. | 2.25MHz | Burst Mode Disabled |
| LTC3406A | Adj. | 1.5MHz | Low Rippe Burst Mode |
| LTC3406AB | Adj. | 1.5MHz | Burst Mode Disabled |
| LTC3406AB-2 | Adj. | 2.25MHz | Burst Mode Disabled |
Applications
- Cellular Telephones
- Satellite and GPS Receivers
- Wireless and DSL Modems
- Digital Still Cameras
- Media Players
- Portable Instruments
Documentation
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3406ABES5#TRMPBF | 5-Lead TSOT-23 | ||
| LTC3406ABES5#TRPBF | 5-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
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Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC3406
- LTC3406-1.2
- LTC3406-1.5
- LTC3406-1.8
- LTC3406A
- LTC3406AB
- LTC3406B
- LTC3406B-1.2
- LTC3406B-1.5
- LTC3406B-1.8
- LTC3406B-2
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LTC3406
- LTC3406-1.2
- LTC3406-1.5
- LTC3406-1.8
- LTC3406B
- LTC3406B-2
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
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