Catalog
Description
The LTC3533 is a wide VIN range, highly efficient, fixed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single cell lithium-ion/polymer or multi-cell alkaline/NiMH applications where the output voltage is within the input voltage range.
The LTC3533 features programmable Burst Mode operation, extended VIN and VOUT ranges down to 1.8V, and increased output current. Switching frequencies up to 2MHz are programmed with an external resistor. The Burst Mode threshold is programmed with a single resistor from the BURST pin to GND.
Other features include 1µA shutdown current, short circuit protection, programmable soft-start, current limit and thermal shutdown. The LTC3533 is housed in the thermally enhanced 14-lead (3mm × 4mm × 0.75mm) DFN package.
CAD Models
Figure: PCB Symbol
Figure: Footprint
Figure: 3D Model
Pin Configuration
Figure: Pin Configuration
Block Diagram
Figure: Block Diagram
Features
- Regulated Output with Input Voltages Above, Below or Equal to the Output
- 1.8V to 5.5V (Input) and 5.25V (Output) Voltage Range
- 0.8A Continuous Output Current: VIN > 1.8V
- 2A Continuous Output Current: VIN > 3V
- Single Inductor
- Synchronous Rectification: Up to 96% Efficiency
- Programmable Burst Mode® Operation: IQ = 40µA
- Output Disconnect in Shutdown
- Programmable Frequency from 300kHz to 2MHz
- <1µA Shutdown Current
- Small Thermally Enhanced 14-Lead (3mm × 4mm × 0.75mm) DFN package
Applications
- GSM Modems
- Handheld Instruments
- Digital Cameras
- Smart Phones
- Media Players
- Miniature Hard Disk Drive Power
Datasheet
You can download the datasheet from the link given below:
LTC3533EDE#TRPBF-Datasheet
Product Attributes
Manufacturer: |
Analog Devices Inc. |
Product Category: |
Switching Voltage Regulators |
Mounting Style: |
SMD/SMT |
Package/Case: |
DFN-14 |
Topology: |
Buck-Boost |
Output Voltage: |
1.8 V to 5.25 V |
Output Current: |
2 A |
Number of Outputs: |
1 Output |
Input Voltage MAX: |
5.5 V |
Input Voltage MIN: |
1.8 V |
Quiescent Current: |
700 uA |
Switching Frequency: |
300 kHz to 2 MHz |
Minimum Operating Temperature: |
- 40 ℃ |
Maximum Operating Temperature: |
+ 85 ℃ |
Series: |
LTC3533 |
Packaging: |
Reel |
Packaging: |
Cut Tape |
Packaging: |
MouseReel |
Brand: |
Analog Devices |
Development Kit: |
DC999A |
Input Voltage: |
1.8 V to 5.5 V |
Operating Supply Current: |
0.04 mA |
Product Type: |
Switching Voltage Regulators |
Factory Pack Quantity: |
2500 |
Subcategory: |
PMIC - Power Management ICs |
Type: |
Wide Input Voltage Synchronous Buck-Boost DC/DC Converter |
Unit Weight: |
32.836 mg |
Manufacturer
Analog Devices, Inc. (ADI), also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing and power management technology, headquartered in Wilmington, Massachusetts. In 2012, Analog Devices led the worldwide data converter market with a 48.5% share, according to analyst firm Databeans.
Using Warning
Note: Please check their parameters and pin configuration before replacing them in your circuit.