LTC3539/LTC3539-2 - 2A, 1MHz/2MHz Synchronous Step-Up DC/DC Converters
The LTC®3539/LTC3539-2 are synchronous, 2A step-up DC/DC converters with output disconnect. Synchronous rectification enables high efficiency in the low profile 2mm × 3mm DFN package. Battery life is extended with a 700mV start-up voltage and operation down to 500mV once started.
A switching frequency of 1MHz (LTC3539) or 2MHz (LTC3539-2) minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count. The LTC3539/LTC3539-2 feature a pin-enabled automatic Burst Mode operation at light load conditions. Anti-ring circuitry reduces EMI by damping the inductor in discontinuous mode. Additional features include a low shutdown current of under 1μA and thermal overload protection.
The LTC3539/LTC3539-2 are offered in a 2mm × 3mm × 0.75mm DFN package.
Features
Typical Application  | Applications
Packaging |
Order Information
| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|---|---|---|---|
| LTC3539EDCB-2#PBF | 2x3 DFN-8 | E | $3.57 | |
| LTC3539EDCB-2#TRMPBF | 2x3 DFN-8 | E | $3.57 | $2.55 |
| LTC3539EDCB-2#TRPBF | 2x3 DFN-8 | E | $3.57 | $2.50 |
| LTC3539EDCB#PBF | 2x3 DFN-8 | E | $3.57 | |
| LTC3539EDCB#TRMPBF | 2x3 DFN-8 | E | $3.57 | $2.55 |
| LTC3539EDCB#TRPBF | 2x3 DFN-8 | E | $3.57 | $2.50 |
Demo Boards
| Part Number | Description | Price |
|---|---|---|
| DC1260A-A | LTC3539EDCB Demo Board | 1MHz, 0.7V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 0.9A | $100.00 |
| DC1260A-B | LTC3539EDCB-2 Demo Board | 2MHz, 0.7V ≤ VIN ≤ 5.5V, VOUT = 1.8V/3.3V/5V @ 0.9A | $100.00 |
