LTC3560
PRODUCTION2.25MHz, 800mA Synchronous Step-Down Regulator in ThinSOT
- Part Models
- 4
- 1ku List Price
- Starting From $2.92
Overview
- High Efficiency: Up to 95%
- Low Output Ripple (<20mVP-P): Burst Mode® Operation: IQ = 16µA
- 2.5V to 5.5V Input Voltage Range
- 2.25MHz Constant Frequency Operation
- Synchronizable to External Clock
- No Schottky Diode Required
- Stable with Ceramic Capacitors
- Low Dropout Operation: 100% Duty Cycle
- 0.6V Reference Allows Low Output Voltages
- Shutdown Mode Draws < 1µA Supply Current
- ±2% Output Voltage Accuracy
- Current Mode Operation for Excellent Line and Load Transient Response
- Overtemperature Protected
- Low Profile (1mm) ThinSOT™ Package
The LTC3560 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 16µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3560 ideally suited for single Li-Ion/Li-Polymer battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.
Switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications the LTC3560 can be externally synchronized from 1MHz to 3MHz. Burst Mode operation is inhibited during synchronization or when the SYNC/MODE pin is pulled high, preventing low frequency ripple from interfering with audio circuitry.
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 LTC3560 is available in a low profile (1mm) ThinSOT package.
Applications
- Cellular Telephones
- Wireless and DSL Modems
- Digital Still Cameras
- Media Players
- Portable Instruments
Documentation
Data Sheet 1
User Guide 1
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 |
|---|---|---|---|
| LTC3560ES6#TRMPBF | 6-Lead TSOT-23 | ||
| LTC3560ES6#TRPBF | 6-Lead TSOT-23 | ||
| LTC3560IS6#TRMPBF | 6-Lead TSOT-23 | ||
| LTC3560IS6#TRPBF | 6-Lead TSOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Oscillators 1 | ||
| LTC6909 | PRODUCTION | 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation |
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
| Supervisory Circuits & Reset ICs 1 | ||
| LTC2935 | PRODUCTION | Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds |
| Switching Regulators & Controllers 1 | ||
| LTC3880 | RECOMMENDED FOR NEW DESIGNS | Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC3560
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.
Evaluation Kits
LTC3560ES6 Demo Board | 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.2V/1.5V/1.8V @ 800mA