LTC3200 - Low Noise, Regulated Charge Pump DC/DC Converters
Features
- Low Noise Constant Frequency Operation
- Output Current: 100mA
- Fixed 5V ±4% Output (LTC3200-5) or ADJ
- VIN Range: 2.7V to 4.5V
- Automatic Soft-Start Reduces Inrush Current
- 2MHz Switching Frequency
- No Inductors
- ICC < 1µA in Shutdown
- Available in 8-Pin MSOP (LTC3200) and Low Profile (1mm) 6-Pin ThinSOT™ (LTC3200-5) Packages
Typical Application
Description
The LTC3200/LTC3200-5 are low noise, constant frequency switched capacitor voltage doublers. They produce a regulated output voltage from a 2.7V to 4.5V input with up to 100mA of output current. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the LTC3200/LTC3200-5 ideally suited for small, battery-powered applications.A new charge-pump architecture maintains constant switching frequency to zero load and reduces bith output and input ripple. The LTC3200/LTC3200-5 have thermal shutdown capability and can survive a continuous short-circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush curreent during start-up.
High switching frequency enables the use of small ceramic capacitors. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to <1µA.
The LTC3200 is available in an 8-pin MSOP package and the LTC3200-5 is available in a 6-pin SOT-23.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC3200EMS8#PBF | MS-8 | MS8 | E | 05-08-1660 | Yes |
| LTC3200EMS8#TRPBF | MS-8 | MS8 | E | 05-08-1660 | Yes |
| LTC3200ES6-5#PBF | SOT-23 | S6 | E | 05-08-1636 | Yes |
| LTC3200ES6-5#TRMPBF | SOT-23 | S6 | E | 05-08-1636 | Yes |
| LTC3200ES6-5#TRPBF | SOT-23 | S6 | E | 05-08-1636 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC3200EMS8#PBF | MS-8 | E | $2.00 | $1.70 | Yes | |
| LTC3200EMS8#TRPBF | MS-8 | E | $1.76 | Yes | ||
| LTC3200ES6-5#PBF | SOT-23 | E | $1.98 | Yes | ||
| LTC3200ES6-5#TRMPBF | SOT-23 | E | $1.98 | $1.68 | Yes | |
| LTC3200ES6-5#TRPBF | SOT-23 | E | $1.98 | $1.66 | Yes | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC366A | LTC3200EMS8 Demo Board | Regulated Charge Pump White LED Driver, 2.7V ≤ VIN ≤ 4.5V, IOUT Drives 6 Parallel LEDs | $75.00 | |
| Buy Now | |||
Applications
- Li-Ion Battery Backup Supplies
- Local 3V to 5V Conversion
- Smart Card Readers
- PCMCIA Local 5V Supplies
- White LED Backlighting
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
Models for the following parts are available in LTspice:
LTC3200
LTC3200-5
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
