LTC3530
RECOMMENDED FOR NEW DESIGNSWide Input Voltage Synchronous Buck-Boost DC/DC Converter
- Part Models
- 4
- 1ku List Price
- Starting From $4.18
Overview
- Regulated Output with Input Voltages Above, Below or Equal to the Output
- 1.8V to 5.5V Input and 1.8V to 5.25V Output Range
- 250mA Continuous Output Current from 1.8V VIN
- 600mA Continuous/1A Peak Output Current from Li-Ion
- Single Inductor
- Synchronous Rectification: Up to 96% Efficiency
- Programmable Automatic Burst Mode® Operation
- Output Disconnect in Shutdown
- Pin Compatible with the LTC3440
- Programmable Frequency from 300kHz to 2MHz
- <1µA Shutdown Current
- Small Thermally Enhanced 10-Lead (3mm × 3mm) DFN and 10-Lead MS Packages
The LTC3530 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 lithium-ion, two-cell alkaline or NiMH applications where the output voltage is within the battery voltage range.
The LTC3530 is pin compatible with the LTC3440 buckboost DC/DC converter but adds programmable automatic Burst Mode operation and extends the VIN/VOUT range to 1.8V. Switching frequencies up to 2MHz are programmed with an external resistor. Automatic Burst Mode operation allows the user to program the load current threshold for Burst Mode operation using a single resistor from the BURST pin to GND.
Other features include 1µA shutdown, short circuit protection, programmable soft-start control, current limit and thermal shutdown. The LTC3530 is available in a thermally enhanced 10-lead (3mm × 3mm) DFN or MSOP package.
Applications
- MP3 Players
- Handheld Instruments
- Digital Cameras
- Smart Phones
- Portable GPS Units
- Miniature Hard Disk Drive Power
Documentation
Data Sheet 1
User Guide 1
Design Note 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 |
|---|---|---|---|
| LTC3530EDD#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3530EDD#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3530EMS#PBF | 10-Lead MSOP | ||
| LTC3530EMS#TRPBF | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 30, 2020 - 20_0244 Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
||
| LTC3530EDD#PBF | PRODUCTION | |
| LTC3530EDD#TRPBF | PRODUCTION | |
| LTC3530EMS#PBF | PRODUCTION | |
| LTC3530EMS#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC3530EMS#PBF | PRODUCTION | |
| LTC3530EMS#TRPBF | PRODUCTION | |
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 |
|---|---|---|
| Hot Swap Controllers 1 | ||
|
LTC4361-1 LTC4361-2 |
Overvoltage/Overcurrent Protection Controller | |
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4417 | RECOMMENDED FOR NEW DESIGNS | Prioritized PowerPath™ Controller |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC3530
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
LTC3530EDD | Low VIN, 600mA Buck-Boost Converter
Resources
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