| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 14-WFDFN Exposed Pad |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Voltage - Input (Max) | 5.5V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 2A |
| Supplier Device Package | 14-DFN (4x3) |
| Output Configuration | Positive |
| Function | Step-Up/Step-Down |
| Topology | Buck-Boost |
| Frequency - Switching | 300kHz ~ 2MHz |
| Synchronous Rectifier | Yes |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | 5.25V |
| Voltage - Input (Min) | 1.8V |
| Package | Tube |
| Product Status | Active |
| Base Product Number | LTC3533 |
| REACH Status | REACH Unaffected |
| Standard Package | 91 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
LTC3533EDE#PBF Synchronous Buck-Boost DC/DC Converter 1.8V 1 Output 2A
The LTC3533EDE#PBF, engineered by Analog Devices (formerly Linear Technology), is a wide VIN range, highly efficient, fixed-frequency synchronous buck-boost DC/DC converter that regulates output voltage from input supplies above, below, or equal to the output. Its proprietary 4-switch topology delivers a continuous transfer function across all operating modes, eliminating the mode-transition glitches common in conventional designs and making it exceptionally suited for battery-powered systems where supply voltage fluctuates around the regulated output.
It operates across an industrial temperature range of -40°C to +85°C and is available in tape-and-reel packaging with RoHS compliance and lead-free termination. The device integrates a synchronous rectifier, eliminating the need for an external Schottky diode and further boosting conversion efficiency. Key absolute maximum ratings include a 5.5V maximum input voltage, a 5.25V maximum output voltage, and a 2A output current capability. The switching frequency is programmable within a 300kHz to 2MHz range, allowing designers to optimize between efficiency and external component size.
For designers seeking alternative solutions with similar buck-boost functionality, several compatible devices from Analog Devices' portfolio are available.
● LTC3533EDE#TRPBF offers the identical electrical specification and DFN-14 package but is supplied in tape-and-reel packaging for automated assembly.
● LTC3532EDD#PBF provides a lower-current buck-boost regulator in a smaller 10-lead DFN package, ideal for less demanding power applications.
● LTC3536EDD#TRPBF delivers a highly integrated buck-boost solution with an even wider input voltage range for more versatile system designs.
● LTC3531EDD-3.3#TRPBF offers a fixed 3.3V output buck-boost regulator in a compact DFN package, simplifying designs with preset voltage requirements.