Power Management
Switching Regulator
Step-Down (Buck) Regulators
Micropower Buck
Power Management
Switching Regulator
Step-Down (Buck) Regulators
Internal Power Switch Buck
LTC3560 - 2.25MHz, 800mA Synchronous Step-Down Regulator in ThinSOT
Features
- 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
Typical Application
Description
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.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
SOT-23
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTC3560ES6#TR | SOT | 6 | E | $2.71 | $1.90 | View |
| LTC3560ES6#TRMPBF | SOT | 6 | E | $2.71 | $1.95 | View |
| LTC3560ES6#TRPBF | SOT | 6 | E | $2.71 | $1.90 | View |
| LTC3560IS6#PBF | SOT | 6 | I | $3.13 | View | |
| LTC3560IS6#TRMPBF | SOT | 6 | I | $3.13 | $2.24 | View |
| LTC3560IS6#TRPBF | SOT | 6 | I | $3.13 | $2.19 | View |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1025A | LTC3560ES6 Demo Board | $75.00 | |
| Buy Now | |||
Applications
- Cellular Telephones
- Wireless and DSL Modems
- Digital Still Cameras
- Media Players
- Portable Instruments
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Simulate
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Related models available in LTspice IV
LTC3560
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
