LTC3203
LTC3203
LTC3203-1
LTC3203B
LTC3203B-1
PRODUCTION
500mA Output Current Low Noise Dual Mode Step-Up Charge Pumps
- Part Models
- 8
- 1ku List Price
- Starting From $3.38
Viewing:
Overview
- Selectable Dual Mode Operation: 1:1.5 or 1:2
- High Output Current: Up to 500mA
- Low Noise Constant Frequency (1MHz/0.9MHz) Operation
- VIN Range: 2.7V to 5.5V
- Adjustable Output Voltage (LTC3203/LTC3203B)
- User Selectable Fixed Output Voltages: 4.5V or 5V (LTC3203-1 and LTC3203B-1)
- Automatic Burst Mode® Operation with IQ ~ 120µA (LTC3203/LTC3203-1)
- Constant Freqency Operation at All Loads (LTC3203B/LTC3203B-1)
- Soft-Start Limits Inrush Current at Turn-On
- Short-Circuit/Thermal Protection
- Shutdown Disconnects Load from Input
- Shutdown Current: < 1µA
- Available in a 10-pin (3mm × 3mm) DFN Package
The LTC3203/LTC3203-1/LTC3203B/LTC3203B-1 are low noise, high efficiency charge pump DC/DC converters capable of driving loads up to 500mA from a 2.7V to 5.5V input. Low external parts count (two flying capacitors and bypass capacitors at VIN and VOUT) make the LTC3203 family ideally suited for small, battery-powered applications.
Built-in soft-start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. The LTC3203/LTC3203-1 feature Burst Mode operation at light load to achieve high efficiency whereas the LTC3203B/LTC3203B-1 operate at constant frequency to achieve lowest noise operation.
The LTC3203-1/LTC3203B-1 have a user selectable fixed output voltage of 4.5V or 5V to power LEDs or logic circuits. The FB pin of the LTC3203/LTC3203B can be used to program the desired output voltage. The parts are short-circuit and over temperature protected and are available in a low profile (3mm × 3mm) DFN package.
Applications
- High Current LED Backlight Supply for Cellphones/PDAs
- Cellphone Camera Light Supply
- General Purpose 3.3V or Li-Ion to 5V Supply
- USB ON THE GO(OTG) Devices
Documentation
Data Sheet 1
User Guide 1
Technical Articles 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 |
|---|---|---|---|
| LTC3203BEDD#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203BEDD#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203BEDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203BEDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203EDD#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203EDD#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203EDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC3203EDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC3203BEDD#PBF | PRODUCTION | |
| LTC3203BEDD#TRPBF | PRODUCTION | |
| LTC3203BEDD-1#PBF | PRODUCTION | |
| LTC3203BEDD-1#TRPBF | PRODUCTION | |
| LTC3203EDD#PBF | PRODUCTION | |
| LTC3203EDD#TRPBF | PRODUCTION | |
| LTC3203EDD-1#PBF | PRODUCTION | |
| LTC3203EDD-1#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice 2
- LTC3203-1 Demo Circuit - 500mA Output Current Low Noise Dual Mode Step-up Charge Pump(2.7-5.5V to 5V @ 500mA)
- LTC3203B Demo Circuit - 500mA Output Current Low Noise Dual Mode Step-up Charge Pump (2.7-5.5V to 3.3V @ 500mA)
Models for the following parts are available in LTspice:
- LTC3203
- LTC3203-1
- LTC3203B
- LTC3203B-1
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.